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*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.
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New and used
2025 GMC Sierra 1500 SLT trucks
for sale
near
Lacombe, LA
- 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.
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I purposely waited a couple of months before writing this
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.
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 SLT | $61,922 |
About the 2025 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 2025 GMC Sierra 1500 SLT cost?
The 2025 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $54,900.
What is the MPG of the 2025 GMC Sierra 1500 SLT?
The 2025 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 2025 GMC Sierra 1500 SLT?
The 2025 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
Is the 2025 GMC Sierra 1500 SLT reliable?
The 2025 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 2025 Sierra 1500 owners.
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 4.5
- Value 4.5
- Exterior 4.5
- Reliability 4.5
SLT (3 styles)
| Style | ||
|---|---|---|
| 4WD Crew Cab 157" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 147" SLT |
| Inventory price | ||
| Starting at $58,700 | Starting at $54,900 | Starting at $58,000 |
| Combined MPG | ||
| 16 | 17 | 16 |
| Engine | ||
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel 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.
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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.
