Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
New and used
2026 GMC Sierra 1500 AT4 trucks
for sale
near
Lakeland, FL
- 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
Vehicle information
Features
Reviews
Stephon was great to work with.
Stephon was great to work with. Made the purchase smooth and seamless. He had the truck pulled forward and detailed as we had much of the paperwork completed prior to going to the dealership.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great experience.
Great experience. They were professional and treat their customers with respect. I would go back there when I need another car.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Highly recommend Rivard GMC Buick.
Highly recommend Rivard GMC Buick. Haley was our sales consultant, and provided a no pressure, no games sales experience. Straight forward pricing, without all the money making add ons. Family owned business as well.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I worked with Jake Thompson and if there was any heavy
I worked with Jake Thompson and if there was any heavy lifting to do during the sales process, he did it. It was no doubt the easiest purchase of a car that I have ever made. Thanks Jake!

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
Features
Reviews
Contacted the dealership several times with offers, so I
Contacted the dealership several times with offers, so I can't really say, never got a responses from the dealership
Vehicle information
Features
Reviews
Malibu and the sale team were great.
Malibu and the sale team were great. Vehicle was in detail shop and waiting for us when we arrived. We were unsure of what color was right for us so Malibu parked the vehicles side by side for comparison and then stayed after working hours to close the deal. Thanks






Vehicle information
Features
Reviews
Stephen Sellers was at the door to welcome us when we
Stephen Sellers was at the door to welcome us when we arrived He was very attentive to our needs and found the vehicle we where looking for which was a 2025 Sierra 2500 HD Denali he knew that vehicle inside out paper work went smooth price was discounted more than expected great person great dealership That was the second vehicle we have purchased from Kelly Buick GMC They have won our loyalty hands down Call dealership and ask for Stephen he won’t let you down Happy buyers Bill & Millie LaBrake

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
Features
Reviews
Buying our vehicle at Kelley Buick GMC was a great
Buying our vehicle at Kelley Buick GMC was a great experience. Our Sales Consultant Braxton Nyland was waiting for us with the vehicle ready to test drive. We loved the vehicle and proceeded to the showroom to work out the details. To our surprise everything was up front and open, no exhausting back and forth. The General Sales Manager Brandon Wundrow also checked to make sure we had everything we needed and thanked us for our business! In no time our new vehicle was ready to drive off the lot!
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Denali
129 listings starting at $60,828
-
GMC Sierra 1500 2026 SLT
58 listings starting at $52,888
-
GMC Sierra 1500 2026 Elevation
49 listings starting at $44,916
-
GMC Sierra 1500 2026 Pro
47 listings starting at $36,015
-
GMC Sierra 1500 2026 Denali Ultimate
25 listings starting at $76,534
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
${award_blurb}
${award_two_blurb}