Used GMC cars for sale near Henefer, UT
-





$10,900
Est. $189/mo A.I. Monroe Auto Sales
Check Availability Quick view Vehicle Information
- Ext. color
- White
- Int. color
- Black
- Drivetrain
- All-wheel Drive
- MPG
- 22-22
- Fuel type
- Gasoline
- Transmission
- Automatic 6-Speed
- Engine
- 3.6L V6 281hp 266ft. lbs.
- Stock #
- HJ185055STK
- VIN
- 1GKKVSKD4HJ185055
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Bluetooth®
- CD Player
- HomeLink
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
A.I. Monroe Auto SalesReviews
A.I. Monroe Auto Sales review
The staff is very friendly and the vehicles are priced fairly below other dealers. No dealer fees was a nice touch too. They also don't work on commission so there isn't pressure to purchase.
2017 GMC Acadia Limited review
The styling looks great outside & everything functions as it should. It has loads of options, heated & cooled seats & steering wheel, very cold air, big comfy 7 seats. While not a luxury-looking plush interior, it is very nice. A couple pieces of plastic molding inside are loose, a back panel I tried to take off & the visor mirror on drivers side. I've owned this for 6 months & adore it! Very roomy.
-





Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black w/Kalahari Accents
- Drivetrain
- Four-wheel Drive
- MPG
- 23-23
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- BARZ364798
- VIN
- 1GTUUEE80RZ364798
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Kentson Car CompanyReviews
Kentson Car Company review
They were great to work with, the sale and paperwork went quickly. Brad and Keith were both very helpful.
2024 GMC Sierra 1500 review
Great truck to own. The 2023 GMC Sierra Denali with the 6.2L engine delivers excellent power, smooth performance, and a refined driving experience. The ride quality, interior comfort, and overall build quality are outstanding. I have had no issues whatsoever, and it has been a reliable, enjoyable vehicle from day one. I would highly recommend it to anyone looking for a premium full-size truck.
-





Quick view Vehicle Information
- Ext. color
- Quicksilver Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 14-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- G44722B
- VIN
- 1GKS2HKJ5KR211849
Features
- Convenience
- Adaptive Cruise Control
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- CD Player
- Premium Sound System
- Rear Seat Entertainment
- Satellite Radio
- Exterior
- Alloy Wheels
- Roof Rack
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Salt Lake Valley Buick GMCReviews
Salt Lake Valley Buick GMC review
I will never buy a GMC from anywhere else. The dealership and people are real and not fake flashy like others. I drive further to get my vehicle serviced there over Jerry Seiner because of the quality, timeliness and communication from the staff.
2019 GMC Yukon XL review
On my 7th one. That should say it all. Quality crafted, full of great features, super smooth ride and plenty of room for up to 8 people plus a ton of gear.
-





$72,845
Est. $1,263/mo Kentson Car Company
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Alpine Umber
- Drivetrain
- Four-wheel Drive
- MPG
- 20-26
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic with Overdrive
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- BAPR213250
- VIN
- 1GKS2KKT1PR213250
Features
- Convenience
- Adaptive Cruise Control
- Automatic Parking
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- HomeLink
- Premium Sound System
- Rear Seat Entertainment
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Roof Rack
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Kentson Car CompanyReviews
2023 GMC Yukon XL review
I love my car. I love the way it handles, and the confidence I have in it when I’m on the road. The room in it is fantastic. All the room I need for when we travel.
-





Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Cocoa/Light Cashmere
- Drivetrain
- All-wheel Drive
- MPG
- 13-19
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- Vortec 6.2L V-8 variable valve control, regular unleaded, engine
- Stock #
- C7849
- VIN
- 1GKFK63827J399219
Features
- Convenience
- Cooled Seats
- Heated Seats
- Keyless Entry
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- CD Player
- DVD Player
- Rear Seat Entertainment
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Roof Rack
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Backup Camera
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
RC AutomotiveReviews
RC Automotive review
I want to say and thank Jennifer Bindley for her help in my purchase of my 2003 Mercedes Benz G55 AMG. I made this purchase from Texas and she assisted me all the way through including assurance that it was shipped to my home. She went I believe out of her way by taking pictures of my purchase so I could see what I’m buying and for this I give her and the dealership 5 Stars. I’m totally satisfied with the purchase again thanks Jennifer!!
2007 GMC Yukon review
If you like big vehicles and have a family, it's the perfect car. Lot's of road trips watching movies in the back. The Denali package makes it stylish and comfortable.
-





Quick view Vehicle Information
- Ext. color
- Red
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- 6.5L V-8 turbo, diesel, engine with 180HP
- Stock #
- U9014
- VIN
- 1GKEK18K6RJ707983
Features
- Exterior
- Sunroof/Moonroof
- Tow Hooks
- Seating
- Leather Seats
Dealer
RC AutomotiveReviews
RC Automotive review
Taylor was excellent and sent videos, pictures, answered all my questions and was super helpful. 5 stars all the way around! Greg
1994 GMC Yukon review
My wife loved it,even though it was more than twice as big as the cars she was used to driving,she was a little upset when I traded it in on a new sierra.
-





Quick view Vehicle Information
- Ext. color
- White Frost Tricoat
- Int. color
- Woodland Mahogany
- Drivetrain
- Four-wheel Drive
- MPG
- 14-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- U9414
- VIN
- 1GKS2ERL3SR243771
Features
- Convenience
- Adaptive Cruise Control
- Automatic Parking
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Rear Seat Entertainment
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
RC AutomotiveReviews
RC Automotive review
I have bought and sold over a dozen vehicles with RC auto and Chris. The service department is elite. These guys are trustworthy - ignore all those reviews questioning the integrity of the employees at RC. I will vouch for any of them personally.
2025 GMC Yukon review
A overall quite reliable car, I’ve owned this Yukon for a couple of months and it’s treating me well, it’s nice, it’s luxurious, with high resale. Yes it consumes a lot of gas, but besides that, best car I’ve owned.
-





Quick view Vehicle Information
- Ext. color
- Volcanic Red Tintcoat
- Int. color
- Forest Storm w/Mahogany Accents
- Drivetrain
- Four-wheel Drive
- MPG
- 20-24
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic with Overdrive
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- BATR141530
- VIN
- 1GKS2HK87TR141530
Features
- Convenience
- Adaptive Cruise Control
- Automatic Parking
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- HomeLink
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Roof Rack
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Kentson Car CompanyReviews
Kentson Car Company review
What a refreshing experience it was to purchase a car from Kentson Car Company!! I couldn't believe how easy and painless it was to buy! I got a killer deal and it was a breeze! I'll definitely be back!
-





$37,958
Est. $658/mo Performance Honda Bountiful
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 16-22
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 3.0L I6 24V DDI DOHC Turbo Diesel
- Stock #
- MG356552
- VIN
- 3GTU9FETXMG356552
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Power Folding Mirrors
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Performance Honda BountifulReviews
Performance Honda Bountiful review
Great service and communication. James was always helpful with all my questions compared to the other dealership that I was at
2021 GMC Sierra 1500 review
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 17-24
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- 3.6L V-6 gasoline direct injection, DOHC, variable valve control
- Stock #
- U9256
- VIN
- 1GTG6EEN6K1179107
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Backup Camera
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
Dealer
RC AutomotiveReviews
RC Automotive review
I have purchased cars from this dealership for the last 11 years. Hands-down the best people in the industry honest and caring. I have owned everything from a $6000 car from them to an $80,000 vehicle. Purchased a car for my mother here. I will not buy a vehicle anywhere else They have sold cars for me. They have found cars for me out of state, and never had one issue. Chris and his staff are the best. I had shipped vehicles back-and-forth from New York and never had an issue. I have always used Jennifer as my sales associate and always well. She knows what I like and she looked out for me and finds the right car for me.
2019 GMC Canyon review
2019 Canyon Denali. All sorts of bells and whistles, several that I don't really need. Biggest complaint: no memory seats and no Homelink garage opener. Ridiculous. What accountant made that decision?
-





$43,012
Est. $746/mo Jerry Seiner North Salt Lake GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- 6.6L V8 32V DDI OHV Turbo Diesel
- Stock #
- 83985
- VIN
- 1GT49NEY5PF145349
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Stability Control
- Seating
- Leather Seats
Dealer
Jerry Seiner North Salt Lake GMCReviews
Jerry Seiner North Salt Lake GMC review
While my car was being serviced I just happened to step into the new car showroom at Jerry Seiner's. My extended warranty was about to expire so I had been thinking of buying another car kind of soon. When the perfect car for me was tracked down by a friendly and caring associate, I couldn't resist. Several people at this dealership combined to make this experience very pleasant and smooth.
-





Quick view Vehicle Information
- Ext. color
- Pure Silver Metallic
- Int. color
- Dark Titanium/Light Titanium
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 6.6L V-8 diesel direct injection, intercooled turbo, die
- Stock #
- C7839
- VIN
- 1GT121C8XBF165379
Features
- Convenience
- Heated Seats
- Keyless Entry
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- CD Player
- DVD Player
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
RC AutomotiveReviews
RC Automotive review
i want the car, but i am having surgery on my knee this thursday, october 30th
2011 GMC Sierra 2500 review
I bought mine in 2017, 2nd owner. It had 36,000 miles on it when I bought it, getting ready to turn a 100,000 miles, and the only thing I've had to do to it, is replace the Def heater, other than that, it's been a great truck. 👍
-
$54,340
New 2026 GMC Canyon Denali
$66,157
New 2026 GMC Sierra 3500 Pro
$81,423
New 2026 GMC Sierra 2500 AT4
$47,820
New 2025 GMC Savana 2500 Work Van
$46,195
New 2025 GMC Savana 2500 Work Van
$46,195
New 2025 GMC Savana 2500 Work Van
$56,650
New 2026 GMC Sierra 2500 Pro
$46,195
New 2025 GMC Savana 2500 Work Van
$91,500
New 2026 GMC Yukon XL AT4
$94,007
New 2026 GMC Yukon XL Denali
$91,500
New 2026 GMC Yukon XL AT4
$75,458
New 2026 GMC Yukon XL Elevation -





$49,512
Est. $858/mo Salt Lake Valley Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Black
- Drivetrain
- Four-wheel Drive
- MPG
- 17-19
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 3.0L I6 24V DDI DOHC Turbo Diesel
- Stock #
- G44905B
- VIN
- 3GTUUCE87SG136789
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
Dealer
Salt Lake Valley Buick GMCReviews
Salt Lake Valley Buick GMC review
Best experience, Sales department was polite I was greeted right away and I felt welcomed. I would highly recommend this dealership.
2025 GMC Sierra 1500 review
Let me start by saying I have the AT4 model with the Duramax 3.0L diesel. I had a 2024 Elevation with the 5.3L V-8 that I bought to pull my 22’ camper. While the Elevation pulled my camper fine it drank the gas like it was on a binge. And with a 26 gallon gas tank it seemed I was filling up every couple of hours. After one trip to Nova Scotia I knew something had to change. I pulled my camper out west to Yellowstone and back through Arizona. It pulled like a champ and fillups were a lot more manageable. Even driving the speed limit out west I still got four to five mpg better than with the gasser. I liked the Elevation but I love the AT4. Way nicer ride and great handling. I get 30 per gallon of diesel on the highway if I drive the speed limit but I got it to tow with. I added a Titian replacement fuel tank so I have 43 gallons instead of the 26 it came with.
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 14-18
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic with Overdrive
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- BASR354657
- VIN
- 1GKS2JRL0SR354657
Features
- Convenience
- Adaptive Cruise Control
- Automatic Parking
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Kentson Car Company -





Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-20
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- PL141821
- VIN
- 1GKS2CKDXPR141821
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Roof Rack
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Parkline MotorsReviews
Parkline Motors review
Overall, the experience and the people here were amazing. The moment we stepped in it felt welcoming, and the services was excellent!
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Black
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 6.6L V8 32V DDI OHV Turbo Diesel
- Stock #
- G44746B
- VIN
- 1GT4USEY9SF359802
Features
- Convenience
- Keyless Entry
- Keyless Start
- Entertainment
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
Dealer
Salt Lake Valley Buick GMCReviews
Salt Lake Valley Buick GMC review
Excellent experience. The sales rep, Kim Bjelka, was very friendly and extremely knowledgeable about the vehicle that I purchased. The support staff was thorough and comprehensive in their assistance. Would highly recommend Salt Lake Valley Buick GMC!
-





$59,211
Est. $1,027/mo Jerry Seiner North Salt Lake GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 3.0L I6 24V DDI DOHC Turbo Diesel
- Stock #
- 83995
- VIN
- 3GTUUEE80TG102044
Features
- Convenience
- Adaptive Cruise Control
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Jerry Seiner North Salt Lake GMCReviews
Jerry Seiner North Salt Lake GMC review
Overall, good experience. Been going here for years. Checkout for service/repairs not great this time. Bill was wrong, They corrected but I shouldn't have to deal with this. They also seem to have a new service fee. % of bill. This just seems shady to me
2026 GMC Sierra 1500 review
This is my first GMC and I absolutely love my Sierra 1500 Elevation. The 5.3L v8 is more than enough to pull my camper, I love the stylish interior and it is comfortable to drive. I also felt with the financing and discount specials this was a great deal.
-





$18,425
Est. $319/mo Jerry Seiner North Salt Lake GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Stealth Gray Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- Fuel type
- Gasoline
- Transmission
- 6-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- 84030
- VIN
- 3GTU2UEC7EG353411
Features
- Convenience
- Keyless Entry
- Remote Start
- Entertainment
- Bluetooth®
- CD Player
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Backup Camera
- Brake Assist
- Stability Control
Dealer
Jerry Seiner North Salt Lake GMCReviews
Jerry Seiner North Salt Lake GMC review
Making an appointment was straightforward though my phone. Oil change was done quick and easy. The staff were very courteous and helpful. Overall, the service was great!
2014 GMC Sierra 1500 review
Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- BARZ304711
- VIN
- 1GTUUCED1RZ304711
Features
- Convenience
- Adaptive Cruise Control
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Stability Control
Dealer
Kentson Car CompanyReviews
Kentson Car Company review
We just purchased our 2nd vehicle from Kentson Car Company and we will definitely be back again! The selection is great and the shopping process is amazing!! We worked with Mark both times and he is a pleasure to work with. There is absolutely no pressure, he's very informative and helpful, and you test drive without having a salesman breathing down your neck on the ride. There is definitely a completely different feel than shopping for and purchasing a vehicle anywhere else. Once we made our decision the paperwork took literally 15 minutes. They even arranged for us to get the front windows tinted promptly before heading home. EXCELLENT experience from start to finish!!!
2024 GMC Sierra 1500 review
Recently purchased a 2024 CPO Sierra Denali with the 3.0 Duramax. Fuel mileage on the highway nears 30 mpg. Super smooth ride with a super entertainment system. Best vehicle I have owned.
-





Quick view Vehicle Information
- Ext. color
- Ebony Twilight Metallic
- Int. color
- Black
- Drivetrain
- All-wheel Drive
- MPG
- 19-24
- Fuel type
- Gasoline
- Transmission
- 8-Speed Automatic
- Engine
- 2.5L I-4 gasoline direct injection, DOHC, variable valve control
- Stock #
- BASJ282496
- VIN
- 1GKENRRS2SJ282496
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Liftgate
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
- Third Row Seating
Dealer
Kentson Car CompanyReviews
Kentson Car Company review
Very responsive and helpful! Also understanding when I chose to purchase a car closer to home.
2025 GMC Acadia review
I saw this car driving by the dealership and automatically was drawn to it because of its color. GMC calls it brown but one print out called it crystal metallic purple. It changes colors depending on the weather. I love the handling, the dash and all the bells and whistles! My grandchildren love how much room that it has!
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black/Dark Ash
- Drivetrain
- Four-wheel Drive
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- Vortec 6L V-8 variable valve control, regular unleaded, engine w
- Stock #
- T2709
- VIN
- 1GT12REG0GF170892
Features
- Convenience
- Keyless Entry
- Entertainment
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Stability Control
Dealer
RC AutomotiveReviews
2016 GMC Sierra 2500 review
I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black w/Kalahari Accents
- Drivetrain
- Four-wheel Drive
- MPG
- 23-23
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- BARZ405427
- VIN
- 1GTUUEE87RZ405427
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Kentson Car CompanyReviews
Kentson Car Company review
I would 100% recommend the Kentson EV team to anyone. They are incredible to work with. Nate Walker worked with me and he was amazing. Full transparency, full trust. I never once felt like I was getting manipulated or deceived. They went above and beyond any of my expectations to make sure I was satisfied. I’ll be back!
2024 GMC Sierra 1500 review
I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain
-





$54,774
Est. $950/mo Performance Ford Bountiful
Check Availability Quick view Vehicle Information
- Ext. color
- Ebony Twilight Metallic
- Int. color
- Jet Black With Kalahari Accents
- Drivetrain
- Four-wheel Drive
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- Gas V8 6.6L/
- Stock #
- NF265564
- VIN
- 1GT49PE76NF265564
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Folding Mirrors
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Performance Ford BountifulReviews
Performance Ford Bountiful review
I had an outstanding experience at Performance Ford Service Center, all thanks to Jose. The air conditioner in my Explorer stopped working, on the hottest day so far. Jose made the entire repair process completely effortless for me. He arranged to have my car picked up from my location and dropped back off once the work was complete. To my surprise, they finished the entire repair a day earlier than promised! The communication was excellent, the service was quick, and my air conditioner is now blowing ice-cold. I only buy from Performance Ford and Jose went above and beyond to assist. Thanks!!!
2022 GMC Sierra 2500 review
I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.
-





$19,555
Est. $339/mo Jerry Seiner North Salt Lake GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Cocoa / Dune
- Drivetrain
- Four-wheel Drive
- MPG
- 16-22
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- 83975
- VIN
- 3GTU2NEC4JG115192
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Remote Start
- Entertainment
- Bluetooth®
- CD Player
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Backup Camera
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Jerry Seiner North Salt Lake GMCReviews
Jerry Seiner North Salt Lake GMC review
My son recently purchased a vehicle from this dealership and had excellent service. His salesperson Steven made it painless and super easy. We buy all our cars here as we are always given great service.
2018 GMC Sierra 1500 review
Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.
-





Quick view Vehicle Information
- Ext. color
- Carbon Metallic
- Int. color
- Dark Pewter
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- Vortec 5.3L V-8 regular unleaded, engine with 295HP
- Stock #
- C7920
- VIN
- 2GTEK13T341394227
Features
- Convenience
- Keyless Entry
- Entertainment
- CD Player
- Premium Sound System
- Exterior
- Alloy Wheels
- Tow Hooks
Dealer
RC AutomotiveReviews
2004 GMC Sierra 1500 review
My dad bought the Sierra brand new in 2004 and I recently got it as a hand me down 2nd truck, and all I can say is it's perfect for what I need. Most reliable truck ever and I can get up to 16 in town and 22 on the highway. The 5.3 liter Vortec LM7 is probably the best engine ever made. The transmission is very responsive and the truck is surprisingly quick. And the 4 wheel drive works. My S10 never did that. Would definitely recommend. My only complaint is the ride is quite stiff with the twin leaf spring tow suspension, but it's supposed to be because it's toe suspension.
-
Quick view Vehicle Information
- Ext. color
- Gray
- Int. color
- Black
- Drivetrain
- Four-wheel Drive
- MPG
- 18-22
- Fuel type
- Gasoline
- Transmission
- 8-Speed Automatic
- Engine
- TurboMax 2.7L I-4 gasoline direct injection, DOHC, variable valv
- Stock #
- BAR1199183
- VIN
- 1GTP6BEK3R1199183
Features
- Convenience
- Keyless Entry
- Keyless Start
- Navigation System
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Stability Control
Dealer
Kentson Car CompanyReviews
2024 GMC Canyon review
Our AT4X has been an excellent mid-size truck. The ride is shockingly smooth and the engine has a lot of torque. Wish the interior had less plastic and GM's failure to have a rear view camera mirror or controls for garage/gate contols is inexcusible. Overall, could not be more pleased with this truck.
-





Quick view Vehicle Information
- Ext. color
- Volcanic Red
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- Fuel type
- Gasoline
- Transmission
- 8-Speed Automatic
- Engine
- 2.7L I4 16V GDI DOHC Turbo
- Stock #
- G44889B
- VIN
- 1GTP2FEKXT1175053
Features
- Convenience
- Adaptive Cruise Control
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Safety
- Automatic Emergency Braking
- Brake Assist
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Memory Seat
Dealer
Salt Lake Valley Buick GMCReviews
Salt Lake Valley Buick GMC review
Great experience. Good Team and treat you right. Would buy again for sure. Great experience. Good Team and treat you right. Would buy again for sure.
2026 GMC Canyon review
This purchase was a replacement for 2022 Honda Ridgeline. While the Canyon is much stronger when talking about the motor it lacks some the little extra details like cabin and tail gate storage. This truck is a bit less stable on the road when it is windy and it definitely consumes more gas. But overall it is a great mid-level truck, feels strong and looks great
-





$42,991
Est. $745/mo Larry H. Miller Super Ford Salt Lake City
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- 6.6L V8 32V DDI OHV Turbo Diesel
- Stock #
- SFO251694A
- VIN
- 1GT49VEY1MF298452
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Power Folding Mirrors
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Backup Camera
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Larry H. Miller Super Ford Salt Lake CityReviews
Larry H. Miller Super Ford Salt Lake City review
They came to my home to make repairs, there was a recall on my driver and passenger airbags and they replaced them at my convenience.
2021 GMC Sierra 3500 review
Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.
-





$60,998
Est. $1,058/mo Salt Lake Valley Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Walnut
- Drivetrain
- Four-wheel Drive
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 6.6L V8 32V DDI OHV Turbo Diesel
- Stock #
- G44675B
- VIN
- 1GT49WEY4NF317292
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Salt Lake Valley Buick GMCReviews
Salt Lake Valley Buick GMC review
Knowledgeable, friendly team. Answered questions and provided pertinent information. No pressure. They made us feel comfortable and cared about. Great teamwork throughout the dealership personnel.
2022 GMC Sierra 3500 review
I ordered a 2022 3500 SRW Pro LB Double cab 4x4 in silver metallic / blk cloth. Added preferred package; gooseneck pkg; X31; upgraded wheels; camper/Snowplow prep; black steps. Got the 6.6 gas L8T. No start/stop and runs on all 8 cylinders all the time. I Love this truck. Had Rams and Fords in past. This is my first GM truck. I am in my 50s so not a brand thing... just a great truck. It was delivered in June. Truck rides great, tows very well, reciever or gooseneck. Fuel mileage is outstanding! Especially for a 4x4 one ton. I get 16 to 18 highway when not towing. I was shocked by how well it did and impressed with towing mpg as well. I generally tow between 6 and 14,000 lbs. Loads include a Glacier bay catmaran boat, 30' camper, and 3 axle 25' gooseneck. Truck easily handles those loads. The L8T engine is smooth and powerful. The 6L90 Transmission functions perfectly. If something were to happen to this truck I would not hesitate to order an exact replacement. So far very satisfied. MSRP as ordered was $53,945.
-





$59,133
Est. $1,025/mo Performance Toyota Bountiful
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- RG408038
- VIN
- 3GTUUFEL8RG408038
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Folding Mirrors
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- HomeLink
- Premium Sound System
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Performance Toyota BountifulReviews
Performance Toyota Bountiful review
I recently purchased a brand-new 2025 Toyota Tundra TRD Off-Road Limited, and I couldn’t be happier with my experience at Performance Toyota Bountiful! From start to finish, the process was seamless and enjoyable, thanks to the professionalism and integrity of the team. Stan Norkis, my salesperson, was incredibly honest, knowledgeable, and respectful throughout the entire process. He took the time to understand my needs, answered all my questions with patience, and ensured I felt confident in my decision. At no point did I feel pressured or rushed—Stan genuinely wanted me to walk away happy and satisfied, and it showed. His attention to detail and genuine care for his customers make him stand out in the best possible way. Hunter Lundy, the financial advisor, was just as delightful to work with. He made what is often considered the most stressful part of buying a vehicle incredibly smooth and straightforward. Hunter clearly explained all the financial options available to me, ensuring I understood every detail before signing anything. His transparency and positive attitude turned what could have been a daunting experience into one I truly appreciated. The professionalism and dedication displayed by both Stan and Hunter made this car-buying experience one of the best I’ve ever had. I absolutely love my new Tundra, and I’m grateful to have worked with such an outstanding team. If you’re in the market for a new vehicle, I can’t recommend Stan Norkis, Hunter Lundy, and the Performance Toyota Bountiful team enough. Thank you all for your exceptional service!
2024 GMC Sierra 1500 review
2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.
-





Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Atmosphere
- Drivetrain
- Four-wheel Drive
- MPG
- 14-19
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 9N1592A
- VIN
- 1GTUUGEL2NZ595583
Features
- Convenience
- Adaptive Cruise Control
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Young GMC BurleyReviews
Young GMC Burley review
Car was serviced ad returned to me promptly. totally satisfied with prompt professional and courteous service.
2022 GMC Sierra 1500 review
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!
-





Quick view Vehicle Information
- Ext. color
- Interstellar White
- Int. color
- Lunar Horizon (Jet Black/Light Grey)
- Drivetrain
- All-wheel Drive
- Fuel type
- Electric
- Transmission
- 1-Speed Automatic
- Engine
- Electric
- Stock #
- MSP4453
- VIN
- 1GT40FDA6NU100708
Features
- Convenience
- Adaptive Cruise Control
- Automatic Parking
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Scottsdale MitsubishiReviews
Scottsdale Mitsubishi review
Great place and people Good help and car was clean and ready fast wife was happy and so was I.
2022 GMC HUMMER EV review
Currently, the Hummer EV is a decent electric vehicle option. However, as newer electric vehicles, especially the Cybertruck, are released to the market with longer range and cutting-edge features at a lower price point, the Hummer EV will fall behind. The Cybertruck is anticipated to enter mass production later this year, while GMC's production is slow, putting them at risk of falling behind competitors who may enter the market with newer and better offerings by the time GMC's product is ready for a refresh. Although GMC initially released a good retrofit product, their production delays are gradually eroding the Hummer's competitive advantage.