New and used 2026 GMC Sierra 1500 AT4X trucks for sale near Willowbrook, CA
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$79,371
MSRP $90,195
Est. $1,416/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Coastal Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14726
- VIN
- 3GTUUFEL0TG343371
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
- 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
Tustin Buick GMC -





$74,171
MSRP $84,785
Est. $1,323/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T18935
- VIN
- 3GTUUFEL5TG318935
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMCReviews
Hardin Buick GMC review
We had our truck towed into Hardin GMC for some major engine repairs. Shawn was our service writer and he communicated with us regularly and was clear about all the repairs needed. Once we approved the repairs, they were made nearly a week faster than expected. Overall we are extremely happy with the service we received.
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$75,366
MSRP $85,980
Est. $1,344/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T39071
- VIN
- 3GTUUFEL1TG339071
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMCReviews
Hardin Buick GMC review
Professional and superb customer service. Was dealing with a check engine light. They go out the way to make sure customer is taken care off.
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$80,071
MSRP $90,790
Est. $1,428/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Sterling
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T05892
- VIN
- 3GTUUFEL3TG305892
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMCReviews
Hardin Buick GMC review
The experience was great. Worked the numbers over the phone and nothing changed when I arrived onsite. They value creating long term customers.
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$80,071
MSRP $90,790
Est. $1,428/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T06035
- VIN
- 3GTUUFEL8TG306035
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMC -





$85,335
MSRP $87,250
Est. $1,522/mo Santa Monica GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Volcanic Red Tintcoat
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- TG291431
- VIN
- 3GTUUFEL5TG291431
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
- 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
Santa Monica GMCReviews
Santa Monica GMC review
Victoria Gia and her sales manager did an excellent job of helping us without being too pushy. They stayed late after the dealership was closed to help us.
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$86,587
MSRP $90,195
Est. $1,544/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14487
- VIN
- 3GTUUFEL2TG343369
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
- 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
Tustin Buick GMC -





$86,587
MSRP $90,195
Est. $1,544/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14489
- VIN
- 3GTUUFEL0TG343368
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
- 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
Tustin Buick GMCReviews
Tustin Buick GMC review
Hello GMC Team, On February 28, 2026, I posted a review regarding my experience at Tustin GMC, specifically concerning the inclusion of add-ons during the purchase process. In my review, I shared that I felt pressured when I was informed that a protection package valued at $4,200 had to be included in order to move forward with the deal. Today, March 1, 2026, I received a call from Tustin GMC management apologizing for the miscommunication. They explained that it was not their intent to pressure me, and that the final price presented actually included an extended warranty rather than a mandatory protection package. I appreciate the clarification and the outreach from management. I accept their apology and want to acknowledge their effort to address the situation and make things right. This type of follow-up and accountability is what excellent customer service is all about. Thank you to the GMC team for taking the time to reach out. Your actions truly go a long way.
2026 GMC Sierra 1500 review
It was such a good truck honstly the greatest thing I have ever drove in my entire life I am so happy that I have been blessed with this being my first ever car
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$86,587
MSRP $90,195
Est. $1,544/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Coastal Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14488
- VIN
- 3GTUUFEL9TG343207
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
- 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
Tustin Buick GMC -





$79,371
MSRP $90,195
Est. $1,416/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Coastal Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14251
- VIN
- 3GTUUFEL3TG295994
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
- 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
Tustin Buick GMC -





$86,112
MSRP $89,700
Est. $1,536/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14490
- VIN
- 3GTUUFEL8TG342193
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
- 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
Tustin Buick GMC -





$89,305
MSRP $89,305
Est. $1,593/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20.00
- Fuel type
- Diesel
- Transmission
- Unknown
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- SI14886
- VIN
- 3GTUUFE8XTG400266
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
- 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
Dealer
Tustin Buick GMCReviews
Tustin Buick GMC review
Tustin Buick gmc went above and beyond my expectations. Super friendly and helpful staff. They were able to answer all my questions and concerns. I would definitely recomend buying a vehicle from this dealership. Thanks again Tustin Buick gmc for all of your help.
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
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$89,800
MSRP $89,800
Est. $1,602/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20.00
- Fuel type
- Diesel
- Transmission
- Unknown
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- SI14888
- VIN
- 3GTUUFE88TG398128
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
- 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
Dealer
Tustin Buick GMCReviews
Tustin Buick GMC review
My truck was service and clean in the time promised. The service advisor are allows courtesy and helpful. The dealership and waiting area is clean and easy to assets
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.
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$89,800
MSRP $89,800
Est. $1,602/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20.00
- Fuel type
- Diesel
- Transmission
- Unknown
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- SI14884
- VIN
- 3GTUUFE86TG398130
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
- 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
Dealer
Tustin Buick GMCReviews
Tustin Buick GMC review
Experience was excellent! Everything was so smooth and easy! We are so happy with our purchase! Highly recommend Danny from GMC! Customer service was on point!
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.
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$89,800
MSRP $89,800
Est. $1,602/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20.00
- Fuel type
- Diesel
- Transmission
- Unknown
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- SI14885
- VIN
- 3GTUUFE8XTG398132
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
- 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
Dealer
Tustin Buick GMCReviews
Tustin Buick GMC review
My experience at the dealership was excellent from start to finish. Abraham greeted me right away, took the time to understand what I needed, and answered every question with patience and detail. The entire process was fast, smooth, and professional. I truly appreciate his outstanding service and the overall efficiency of the team.
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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$90,184
MSRP $92,025
Est. $1,609/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14641
- VIN
- 3GTUUFEL3TG292061
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
- 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
Tustin Buick GMC -





$75,574
MSRP $85,880
Est. $1,348/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Coastal Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14534
- VIN
- 3GTUUFEL0TG363040
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
- 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
Tustin Buick GMC -





$79,371
MSRP $90,195
Est. $1,416/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14283
- VIN
- 3GTUUFEL5TG296242
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
- 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
Tustin Buick GMC -





$79,371
MSRP $90,195
Est. $1,416/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14282
- VIN
- 3GTUUFEL0TG295998
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
- 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
Tustin Buick GMC -





$81,969
MSRP $85,385
Est. $1,462/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14521
- VIN
- 3GTUUFEL7TG358174
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
- 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
Tustin Buick GMC -





$84,162
MSRP $85,880
Est. $1,501/mo Tustin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 14-16.00
- Fuel type
- Gasoline
- Transmission
- 10-Speed Shiftable Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- SI14533
- VIN
- 3GTUUFEL6TG363754
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
- 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
Tustin Buick GMC -





$79,526
MSRP $90,790
Est. $1,418/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Sterling
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T06239
- VIN
- 3GTUUFEL2TG306239
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMCReviews
Hardin Buick GMC review
Had to get some warranty repairs done. Jeff took care of all the processing and we were informed about the progress from start to finish. Professional, courteous customer service.
-





$73,226
MSRP $84,290
Est. $1,306/mo Hardin Buick GMC
Check Availability Quick view Vehicle Information
- Ext. color
- Summit White
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- 26T18742
- VIN
- 3GTUUFEL5TG318742
Features
- Convenience
- Adaptive Cruise Control
- Heated Steering Wheel
- Navigation System
- Remote Start
- Entertainment
- Bluetooth®
- Premium Sound System
- Satellite Radio
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Safety
- Brake Assist
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Hardin Buick GMCReviews
Hardin Buick GMC review
I called the dealership and spoke to Gary Koch. I found him to be very personable and knowledgeable. We discussed the online price and agreed to purchase the car. I am not local and handled the preliminary paperwork over the phone. Once everything was confirmed I booked a flight and Gary offered to pick me up. I was in and out of the dealership in less than 90 minutes. Gary made the car buying process super easy and enjoyable. I also received an exceptional deal.
-





Quick view Vehicle Information
- Ext. color
- Dune
- Int. color
- Obsidian Rush
- Drivetrain
- Four-wheel Drive
- MPG
- 19-20
- Fuel type
- Gasoline
- Transmission
- 10-Speed Automatic
- Engine
- 6.2L V8 16V GDI OHV
- Stock #
- S16924
- VIN
- 3GTUUFEL2TG351200
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
- 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
Costa Mesa GMCReviews
Costa Mesa GMC review
The prices attracted me. The customer service and experience/ level of knowledge was not great. There was an inconsistency of dealership policy. It would be nice to get a car for the price you expect. I felt forced to purchase items I did not want
About the 2026 GMC Sierra 1500 AT4X
AT4X shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 19
- Transmission
- 10-Speed A/T
- Engine
- 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2026 GMC Sierra 1500 AT4X cost?
The 2026 GMC Sierra 1500 AT4X price depends on optional features. Prices typically start at $79,600.
What is the MPG of the 2026 GMC Sierra 1500 AT4X?
The 2026 GMC Sierra 1500 AT4X offers up to 19 MPG in city driving and 20 MPG on the highway for a combined rating of 19 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 AT4X?
The 2026 GMC Sierra 1500 AT4X compares to and/or competes against the following vehicles:
Is the 2026 GMC Sierra 1500 AT4X reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
83% of drivers recommend this car
- Comfort
- 4.3
- Interior
- 4.3
- Performance
- 4.5
- Value
- 3.7
- Exterior
- 4.5
- Reliability
- 4.5
AT4X (1 style)
| Style |
|---|
| 4WD Crew Cab 147" AT4X |
| Inventory price |
| Starting at $79,600 |
| Combined MPG |
| 19 |
| Engine |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
2026 GMC Sierra 1500 AT4X by city
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