New and used 2026 GMC Sierra 1500 SLT trucks for sale in Slidell, LA
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Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Rear-wheel Drive
- MPG
- 23-28
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2578
- VIN
- 1GTUHDE82TZ483765
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2659
- VIN
- 1GTUUDED2TZ502551
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling
- Int. color
- Jet Black
- Drivetrain
- Rear-wheel Drive
- MPG
- 16-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- G28377B
- VIN
- 3GTPHDED8TG224949
Features
- Convenience
- Heated Steering Wheel
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Rainbow Northshore GMCReviews
Rainbow Northshore GMC review
Fast friendly, got the deal I wanted. Followed up the next day with a car wash and I was on my way. I plan on using the maintenance department for oil changes in the future.
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Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Rear-wheel Drive
- MPG
- 23-28
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 26G2106
- VIN
- 3GTPHDE85TG306124
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Legacy GMC -





Vehicle Information
- Ext. color
- Summit White
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Rear-wheel Drive
- MPG
- 23-28
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2597
- VIN
- 3GTPHDE80TG424078
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Legacy GMCReviews
Legacy GMC review
Would definitely recommend this dealership to whomever was looking for a vehicle. I had no issues purchasing my truck. Chris was very helpful with pictures and videos prior to my visit.
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Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Rear-wheel Drive
- MPG
- 16-20
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2523
- VIN
- 3GTPHDED6TG312995
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -
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Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 26G2301
- VIN
- 1GTUUDE81TZ344884
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMCReviews
Legacy GMC review
Update were timely... the tire was replaced in just hours... Thanks Jacob for your help and time. My 2016 Chey Silverado run great on the open highway.
2026 GMC Sierra 1500 review
I bought the AT 4 version. Loaded. Has good ground clearance. It's powered with a 3.0 l turbocharged diesel. Has lots of horsepower and torque. I've had no problem but I talked to my friend who's a certified mechanic and they're having a lot of problems with the engine blowing up at very low mileage. A lot of the time less than 15,000. Some of them have problems with the thrust bearings failing causing increased crankshaft play back and forth to the point where the timing chain and the rubber belt that runs the oil pump can fail. The engine has been described as grenading. They're basically self-destructs. There's a specific power code that indicates low oil pressure and allowed rattle sound before it finally fails. I heard that the engines were on back order, so if you're one of the unfortunates you can plan on waiting 10 or 12 weeks or longer to get your truck back. They have to remove the cab completely to swap motors. But overall I love the truck. It's a big improvement over the 2022 I just traded in.
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Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- 26G2425
- VIN
- 1GTUUDED6TZ428700
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Rear-wheel Drive
- MPG
- 23-28
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2578
- VIN
- 1GTUHDE82TZ483765
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2664
- VIN
- 1GTUUDEDXTZ502183
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2583
- VIN
- 3GTUUDED1TG493292
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2514
- VIN
- 1GTUUDED1TZ461393
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -
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Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2582
- VIN
- 3GTUUDED6TG492347
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2542
- VIN
- 1GTUUDED3TZ458365
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





$67,740
MSRP $67,740
Est. $1,266/mo Rainbow Northshore GMC
Check Availability Vehicle Information
- Ext. color
- Sterling
- Int. color
- Dark Walnut
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- G28749
- VIN
- 1GTUUDEDXTZ434435
Features
- Convenience
- Heated Steering Wheel
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Rainbow Northshore GMCReviews
Rainbow Northshore GMC review
Cheyenne did an excellent job. She is very knowledgeable and her feedback helped me to make the best decision at the time of purchasing the vehicle. I highly recommend Cheyenne to be your sales person.
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$67,740
MSRP $67,740
Est. $1,266/mo Rainbow Northshore GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- G28530
- VIN
- 3GTUUDED4TG425519
Features
- Convenience
- Heated Steering Wheel
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Rainbow Northshore GMCReviews
Rainbow Northshore GMC review
I'm always welcome and that's a GREAT FEELING and a HUGH PLUS to receive EXCELLENT SERVICE .
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$67,740
MSRP $67,740
Est. $1,266/mo Rainbow Northshore GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- G28604
- VIN
- 1GTUUDED2TZ464139
Features
- Convenience
- Heated Steering Wheel
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Rainbow Northshore GMCReviews
Rainbow Northshore GMC review
Been purchasing auto?s from Louie for years! Super nice guy! Go see him for your next vehicle purchase!
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Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2524
- VIN
- 3GTUUDED6TG460174
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





$67,740
MSRP $67,740
Est. $1,266/mo Rainbow Northshore GMC
Check Availability Vehicle Information
- Ext. color
- Sterling
- Int. color
- Dark Walnut
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 5.3L V8 16V GDI OHV
- Stock #
- G28598
- VIN
- 1GTUUDED6TZ464192
Features
- Convenience
- Heated Steering Wheel
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- Exterior
- Alloy Wheels
- Tow Hitch
- Safety
- Backup Camera
- Brake Assist
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Rainbow Northshore GMCReviews
Rainbow Northshore GMC review
I purposely waited a couple of months before writing this review because I wanted to see what kind of follow up Rainbow did and I wanted to go through the first service of the truck with their service department. I purchased the Sierra 1500 truck with the small diesel engine in April. It has been a fantastic truck so far and I am getting over 30 mpg on the Causeway. First, it was a pleasure dealing with the salesperson, Rocky Comeaux. She was not pushy, she listened and she answered questions. There were two questions that she did not know the answer to - and instead of making up a response, she asked someone in her department. Having been in sales at one time for 8 years, this was refreshing that a salesperson did not try to "look good" in front of the customer and not look like she did not know what she was doing and made sure my questions were answered correctly. Rocky has followed up with me several times since the purchase to make sure that I was satisfied with my purchase. Second, I traded in a 2004 Dodge Ram truck with over 360,000 miles with the original motor and transmission. I take care of my vehicles, and longevity of the truck was important to me. As such, the long term warranty options were of interest. Rainbow explained them, and they treated me fair on my trade in. Third, paying for the vehicle was easy and picking it up was seamless. Fourth, I recently brought the truck in for the first oil change and service. The service department was booked for over a week but getting the appointment was easy on the app and I picked up the truck later that day at my convenience. The only hiccup on the service was that the DEF was not refilled. When I brought this to the service department's attention, they immediately apologized and filled it up asap. The service department was very easy to deal with and very friendly. I would highly recommend this dealership. This is my second vehicle I have purchased from them as we have a 2013 GMC Suburban still going strong.
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Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Transmission
- Automatic
- Engine
- Duramax 3.0L Turbo-Diesel I6 Engine
- Stock #
- 26G2540
- VIN
- 3GTUUDE8XTG454350
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- 26G2231
- VIN
- 3GTUUDED4TG360669
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2539
- VIN
- 1GTUUDEDXTZ458363
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMCReviews
Legacy GMC review
Great service after the sale. I needed new shocks on my truck. The service time was quick. I have been driving with the new shocks for a week and have no issues.
2026 GMC Sierra 1500 review
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
-





Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2515
- VIN
- 1GTUUDED0TZ461238
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Volcanic Red Tintcoat
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 26G2053
- VIN
- 3GTUUDE82TG268169
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMCReviews
Legacy GMC review
Love Jacob! He might be my favorite person at the whole dealership. As soon as he sees me drive up, he walks up with a smile on his face.
2026 GMC Sierra 1500 review
This is a great truck. it drives and handles so well. I feel very safe driving this truck. The suspension is the best of any truck I have ever owned.
-





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- 26G2672
- VIN
- 1GTUUDED2TZ502307
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
Legacy GMC -





Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- TG440240
- VIN
- 3GTUUDE8XTG440240
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®
- USB Port
- WiFi Hotspot
- Exterior
- 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
VanGuard GMC -





Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Dark Walnut
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Diesel
- Transmission
- 10-Speed Automatic
- Engine
- 3.0L I6 24V DDI DOHC Turbo Diesel
- Stock #
- L267605
- VIN
- 3GTUUDE85TG466695
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
Laura Buick GMCReviews
Laura Buick GMC review
As always the experience at Laura Buick GMC was excellent and we could not be happier with the vehicle we purchased. The entire team starting with our sales person went above and beyond to make sure we ended up with the vehicle we wanted at the best price possible. We have bought multiple vehicles from Laura Buick GMC and will continue to buy from them in the future.
2026 GMC Sierra 1500 review
A little expensive, but comfortable, quiet, smooth ride. Great performance out of the 6.2L and better than expected fuel economy in the low 20s. Outstanding interior and good looking exterior, especially in the Downpour Metallic color. I don’t have 700 miles on it yet and have owned it for 3 weeks. Therefore, I can’t pass judgement yet on the reliability, but so far I am very satisfied. This replaced an 8 year old Ford F150 that served me quite well with only a couple of issues in the 100,000 plus miles.
About the 2026 GMC Sierra 1500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 1500 SLT cost?
The 2026 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $55,100.
What is the MPG of the 2026 GMC Sierra 1500 SLT?
The 2026 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2026 GMC Sierra 1500 SLT?
The 2026 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
- GMC Sierra 2500
- GMC Sierra 1500 Limited
- GMC Sierra 1500 Hybrid
- GMC Savana 1500
- Chevrolet Silverado 1500
Is the 2026 GMC Sierra 1500 SLT reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
85% of drivers recommend this car
- Comfort
- 4.4
- Interior
- 4.4
- Performance
- 4.6
- Value
- 3.9
- Exterior
- 4.6
- Reliability
- 4.6
SLT (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" SLT | 4WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
| Inventory price | ||
| Starting at $55,100 | Starting at $58,200 | Starting at $58,900 |
| Combined MPG | ||
| 17 | 16 | 16 |
| Engine | ||
| 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
2026 GMC Sierra 1500 SLT by city
-
2026 GMC Sierra 1500 SLT in Eden Isle, LA
2 Great Deals out of 210 listings starting at $41,641
-
2026 GMC Sierra 1500 SLT in Pearl River, LA
113 listings starting at $49,262
-
2026 GMC Sierra 1500 SLT in Lacombe, LA
2 Great Deals out of 177 listings starting at $41,641
-
2026 GMC Sierra 1500 SLT in Pearlington, MS
88 listings starting at $51,445
-
2026 GMC Sierra 1500 SLT in Nicholson, MS
113 listings starting at $49,262
-
2026 GMC Sierra 1500 SLT in New Orleans, LA
2 Great Deals out of 189 listings starting at $41,641
-
2026 GMC Sierra 1500 SLT in Picayune, MS
113 listings starting at $49,262
-
2026 GMC Sierra 1500 SLT in Mandeville, LA
1 Great Deal out of 235 listings starting at $48,734
-
2026 GMC Sierra 1500 SLT in Abita Springs, LA
172 listings starting at $49,262
-
2026 GMC Sierra 1500 SLT in Hide-A-Way Lake, MS
113 listings starting at $49,262
-
2026 GMC Sierra 1500 SLT in Kiln, MS
88 listings starting at $51,445
-
2026 GMC Sierra 1500 SLT in Waveland, MS
88 listings starting at $51,445
2026 GMC Sierra 1500 trims
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2026 GMC Sierra 1500 AT4
60 listings starting at $62,212
-
2026 GMC Sierra 1500 Denali
46 listings starting at $61,705
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2026 GMC Sierra 1500 Elevation
1 Great Deal out of 35 listings starting at $43,555