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New and used
2026 GMC Sierra 1500 SLT trucks
for sale
near
Willowbrook, CA
36 matches
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 SLT
$59,895
MSRP $64,645
Tustin Buick GMC
Vehicle information
Ext. color: Sterling Metallic
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 #: SI14364
VIN: 1GTPHDE87TZ346365
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, 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
Used
2026 GMC Sierra 1500 SLT
13,186 mi.
$48,788
Chevrolet of Carson
Vehicle information
Ext. color: Summit White
Int. color: Dark Walnut/Slate
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: RC6769
VIN: 1GTPHDED5TZ140135
Features
Convenience:
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, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Chevrolet of Carson review
Love your customer service thank you for your help and
Love your customer service thank you for your help and advice about my car service Lisa i really appreciate. I really recommend this place thanks.
2026 GMC Sierra 1500 SLT review
It was such a good truck honstly the greatest thing I
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
New
2026 GMC Sierra 1500 SLT
$64,780
MSRP $64,780
Reynolds GMC
Vehicle information
Ext. color: Onyx Black
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 #: 260464
VIN: 3GTPHDE87TG306948
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®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Reynolds GMC review
I have 2 vehicles within 2 years from same dealership.
I have 2 vehicles within 2 years from same dealership. no mark up like other shaddy dealership and not to push of the stuff that you are not comfortable. Highly recomend this compare to other price gauging dealership. As usual my service advisor josh is amazing and never push for anything that is not needed.
New
2026 GMC Sierra 1500 SLT
$50,658
MSRP $58,240
Penske Buick GMC of South Bay
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: TG202000
VIN: 3GTPHDED8TG202000
Features
Convenience:
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, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$65,170
MSRP $65,170
Reynolds GMC
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 gasoline direct injection, variable valve contr
Stock #: 260331
VIN: 3GTPHDED7TG274435
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®, 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, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Reynolds GMC review
Jack in the service department came through for me in
Jack in the service department came through for me in getting my front and back brakes done in a timely matter. Always responded to my calls. Awesome customer service.
New
2026 GMC Sierra 1500 SLT
$67,730
MSRP $69,980
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
15-18
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 308312
VIN: 3GTUUDE87TG308312
Features
Convenience:
Heated Steering Wheel, Navigation System, Remote Start
Entertainment:
Bluetooth®, Satellite Radio
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
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 SLT
$68,000
MSRP $68,000
Reynolds 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 #: 260414
VIN: 3GTUUDEDXTG285024
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®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Reynolds GMC review
The whole staff, sales and service are friendly, helpful
The whole staff, sales and service are friendly, helpful and honest to deal with. They take care of your needs.
New
2026 GMC Sierra 1500 SLT
$64,500
MSRP $64,500
Reynolds GMC
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 #: 260421
VIN: 3GTPHDE87TG302642
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®, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$65,440
MSRP $68,690
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
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 #: 324649
VIN: 1GTUUDED5TZ324649
Features
Convenience:
Heated Steering Wheel, Navigation System, Remote Start
Entertainment:
Bluetooth®, Satellite Radio
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
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 SLT
$58,145
MSRP $61,395
Costa Mesa 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 #: S16820
VIN: 3GTPHDED6TG314780
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, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Costa Mesa GMC review
The prices attracted me.
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
New
2026 GMC Sierra 1500 SLT
$63,035
MSRP $69,485
$4,200 price drop
Simpson Buick GMC of Buena Park
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
15-18
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 252210
VIN: 3GTUUDE83TG252210
Features
Convenience:
Heated Steering Wheel, Navigation System, Remote Start
Entertainment:
Bluetooth®, Satellite Radio
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
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 SLT
$61,245
MSRP $64,495
Costa Mesa GMC
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 #: S16842
VIN: 1GTUUDED1TZ345532
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, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Used
2026 GMC Sierra 1500 SLT
17,514 mi.
$45,286
$2,695 price drop
Tustin Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Dark Walnut/Slate
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: 16504R
VIN: 1GTPHDED3TZ174266
Features
Convenience:
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, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Tustin Buick GMC review
My experience at the dealership was excellent from start
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.
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 #: 16451R
VIN: 1GTUUDED3TZ161905
Features
Convenience:
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, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Tustin Buick GMC review
Tustin Buick gmc went above and beyond my expectations.
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.
Vehicle information
Ext. color: Summit White
Int. color: Dark Walnut/Slate
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: 16514R
VIN: 1GTPHDED9TZ177396
Features
Convenience:
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, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Tustin Buick GMC review
My truck was service and clean in the time promised.
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
Used
2026 GMC Sierra 1500 SLT
867 mi.
$54,494
$2,170 price drop
Tustin Buick GMC
Vehicle information
Ext. color: Glacier White Tricoat
Int. color: Jet Black
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: SI13451U
VIN: 3GTPHDED6TG139060
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
Reviews
Tustin Buick GMC review
Hello GMC Team, On February 28, 2026, I posted a
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.
New
2026 GMC Sierra 1500 SLT
$65,935
MSRP $69,185
Simpson Buick GMC of Buena Park
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 #: 324669
VIN: 1GTUUDED0TZ324669
Features
Convenience:
Heated Steering Wheel, Navigation System, Remote Start
Entertainment:
Bluetooth®, Satellite Radio
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
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 SLT
$70,780
MSRP $70,780
Reynolds GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
15-19
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
Stock #: 260063T
VIN: 3GTUUDEL4TG230835
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®, 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, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$57,650
MSRP $60,900
Costa Mesa GMC
Vehicle information
Ext. color: Summit White
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 #: S16834
VIN: 3GTPHDED3TG314509
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, Rain Sensing Wipers, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$64,459
MSRP $72,510
Costa Mesa GMC
Vehicle information
Ext. color: Titanium Metallic
Int. color: Black
Drivetrain: Four-wheel Drive
MPG:
15-18
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.2L V8 16V GDI OHV
Stock #: S16234
VIN: 3GTUUDEL2TG112945
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
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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:
Is the 2026 GMC Sierra 1500 SLT 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.
75% of drivers recommend this car
Rating breakdown (out of 5):
- Comfort
- 4.0
- Interior
- 4.0
- Performance
- 4.2
- Value
- 3.5
- Exterior
- 4.2
- Reliability
- 4.5
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) |
*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.
2026 GMC Sierra 1500 SLT by city
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28 listings starting at $48,788
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2 Great Deals out of 36 listings starting at $45,286
-
2026 GMC Sierra 1500 SLT in Huntington Park, CA
2 Great Deals out of 36 listings starting at $45,286
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2026 GMC Sierra 1500 SLT in Paramount, CA
2 Great Deals out of 36 listings starting at $45,286
GMC Sierra 1500 trims
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GMC Sierra 1500 2026 Elevation
204 listings starting at $42,064
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GMC Sierra 1500 2026 Pro
107 listings starting at $33,590
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GMC Sierra 1500 2026 Denali Ultimate
42 listings starting at $74,663
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GMC Sierra 1500 2026 Denali
38 listings starting at $59,728
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GMC Sierra 1500 2026 AT4X
31 listings starting at $76,325
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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.