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New and used
2026 GMC Sierra 1500 AT4 trucks
for sale
near
Cypress, CA
29 matches
30 miles from 90630
Be the first to know!
Est.
$400
/mo*
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
New
2026 GMC Sierra 1500 AT4
$70,869
MSRP $71,869
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 107233
VIN: 3GTUUEE86TG107233
Features
Entertainment:
Satellite Radio
Reviews
Simpson Buick GMC of Buena Park review
Update to my original review
Ok so I am sure my 1st review is not gonna be deleted but I have a new review for them as they have addressed my concerns and Because of 1 persons actions I am completely satisfied with the repairs and commitment that JOHN in service has made sure I was completely satisfied with the repairs so a big THANK YOU to John and anyone else who worked on this I will definitely be taking my truck back for service
New
2026 GMC Sierra 1500 AT4
$72,785
MSRP $73,785
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L V8
Stock #: 109092
VIN: 3GTUUEEL7TG109092
Features
Entertainment:
Satellite Radio
Reviews
Simpson Buick GMC of Buena Park review
Good experience
Great experience. Simple and easy. Great staff. Definitely would recommend.
New
2026 GMC Sierra 1500 AT4
$65,552
MSRP $72,860
$2,447 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T23773
VIN: 1GTUUEE88TZ123773
Features
Entertainment:
Satellite Radio
Reviews
Hardin Buick GMC review
Professional and courteous!
Fantastic dealership with professional and courteous staff.
New
2026 GMC Sierra 1500 AT4
$72,284
MSRP $73,284
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 102146
VIN: 3GTUUEE88TG102146
Features
Entertainment:
Satellite Radio
Reviews
Simpson Buick GMC of Buena Park review
Great service
Great service friendly and helpful had my Yukon worked on warranty service Ceasar Rivas was helpful and took the time to call me on every step.
New
2026 GMC Sierra 1500 AT4
$71,364
MSRP $72,364
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: D107872
VIN: 3GTUUEE87TG107872
Features
Entertainment:
Satellite Radio
Reviews
Simpson Buick GMC of Buena Park review
minhphm9@yahoo.com
Good job, Great service, thank you. I will alway bring my car here
New
2026 GMC Sierra 1500 AT4
$72,779
MSRP $73,779
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 103084
VIN: 3GTUUEE86TG103084
Features
Entertainment:
Satellite Radio
Reviews
Simpson Buick GMC of Buena Park review
Great customer service!
Great customer service! Luis and Robert Salinas were AWESOME throughout the whole buying process . I would definite recommend this dealer to anyone looking to buy a great vehicle along with excellent customer service .
New
2026 GMC Sierra 1500 AT4
$72,284
MSRP $73,284
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 102131
VIN: 3GTUUEE86TG102131
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$71,364
MSRP $72,364
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Titanium Rush Metallic
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 108039
VIN: 3GTUUEE84TG108039
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$72,779
MSRP $73,779
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 103088
VIN: 3GTUUEE83TG103088
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$72,779
MSRP $73,779
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 103075
VIN: 3GTUUEE85TG103075
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$65,552
MSRP $72,860
$6,308 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T03980
VIN: 3GTUUEE81TG103980
Features
Entertainment:
Satellite Radio
Reviews
Hardin Buick GMC review
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.
New
2026 GMC Sierra 1500 AT4
$65,552
MSRP $72,860
$6,308 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T33111
VIN: 1GTUUEE81TZ133111
Features
Entertainment:
Satellite Radio
Reviews
Hardin Buick GMC review
Had to get some warranty repairs done.
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.
New
2026 GMC Sierra 1500 AT4
$72,284
MSRP $73,284
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 102138
VIN: 3GTUUEE89TG102138
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$71,364
MSRP $72,364
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 107750
VIN: 3GTUUEE84TG107750
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$71,364
MSRP $72,364
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 107972
VIN: 3GTUUEE80TG107972
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$65,552
MSRP $72,860
$2,447 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T23692
VIN: 1GTUUEE88TZ123692
Features
Entertainment:
Satellite Radio
Reviews
Hardin Buick GMC review
The experience was great.
The experience was great. Worked the numbers over the phone and nothing changed when I arrived onsite. They value creating long term customers.
New
2026 GMC Sierra 1500 AT4
$66,452
MSRP $73,355
$2,104 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T23546
VIN: 1GTUUEE88TZ123546
Features
Entertainment:
Satellite Radio
Reviews
Hardin Buick GMC review
I called the dealership and spoke to Gary Koch.
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.
New
2026 GMC Sierra 1500 AT4
$66,452
MSRP $73,355
$5,903 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T24124
VIN: 1GTUUEE89TZ124124
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$66,452
MSRP $73,355
$5,903 price drop
Hardin Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 26T33542
VIN: 1GTUUEE86TZ133542
Features
Entertainment:
Satellite Radio
New
2026 GMC Sierra 1500 AT4
$71,364
MSRP $72,364
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Fuel type: Gasoline
Transmission: Automatic
Engine: 3.0L
Stock #: 108033
VIN: 3GTUUEE83TG108033
Features
Entertainment:
Satellite Radio
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About the 2026 GMC Sierra 1500 AT4
AT4 shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 23
- 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 AT4 cost?
The 2026 GMC Sierra 1500 AT4 price depends on optional features. Prices typically start at $66,800.
What is the MPG of the 2026 GMC Sierra 1500 AT4?
The 2026 GMC Sierra 1500 AT4 offers up to 21 MPG in city driving and 24 MPG on the highway for a combined rating of 23 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 AT4?
The 2026 GMC Sierra 1500 AT4 compares to and/or competes against the following vehicles:
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 147" AT4 | 4WD Crew Cab 157" AT4 |
| Inventory price | |
| Starting at $66,800 | Starting at $67,300 |
| Combined MPG | |
| 23 | 23 |
| Engine | |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
29 matches
Clear
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
37 listings starting at $52,146
-
GMC Sierra 1500 2026 SLT
35 listings starting at $59,571
-
GMC Sierra 1500 2026 Denali Ultimate
23 listings starting at $79,643
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