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14 city, 16 highway, 15 combined
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The 2025 GMC Sierra 1500 is not yet rated. Help future customers learn about a car you've owned and write a review.
RepairPal gave the GMC Sierra 1500 an overall reliability rating of 3.5 out of 5 stars, which RepairPal describes as Above Average. This rating ranks GMC Sierra 1500 4th out of 19 among Fullsize Trucks.
RepairPal reports that the average total annual cost for repairs and maintenance on a GMC Sierra 1500 is $637, compared to an average of $818 for Fullsize Trucks and $591 for all the vehicles RepairPal considered in its dataset.
According to RepairPal, GMC Sierra 1500 owners bring their vehicles into a repair shop for unscheduled repairs an average of 0.6 times per year, compared to an average of 0.9 times for Fullsize Trucks and 1.3 times for all the vehicles RepairPal considered in its dataset.
RepairPal reported that the probability of a repair being a severe or major issue is 20% for the GMC Sierra 1500, compared to an average of 22% for Fullsize Trucks and 14% for all the vehicles RepairPal considered in its dataset.
Drive Wheels | Rear Wheel Drive (2WD) |
Engine size | 5.3L |
Horsepower | 355 |
Torque (ft-lbs) | 383 |
Engine type | Gas |
Fuel capacity | 24 |
Wheelbase | 147.44" |
Overall length | 231.92" |
Width | 81.24" |
Height | 75.49" |
Leg room | F 44.53"/R 43.4" |
Head room | F 43.03"/R 40.12" |
Front tires | 265/65R18SL |
Rear tires | 265/65R18SL |
Seating capacity | 6 |
Max towing capacity | 940/13100 lbs. |
Transmission | Automatic |
The 2025 GMC Sierra 1500 is available in multiple trims, each with its own estimated fuel economy, here are the EPA estimates for each trim:
The GMC Sierra 1500 received a rating of 3.5 out of 5 stars from RepairPal, which RepairPal describes as Above Average. This rating ranks the GMC Sierra 1500 as 3 out of 19 among Fullsize Truck
The 2025 GMC Sierra 1500 has a maximum towing capacity of between 8800 and 13100 pounds, when properly equipped. Various factors may impact towing capacity, including weight of passengers, cargo, and options/accessories.
Here is what's new for the 2025 GMC Sierra 1500:
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Statements of fuel economy or EV range are based on EPA and other third-party estimates for vehicles when new. Fuel economy and EV range will degrade with time and vary based on age, driving conditions, vehicle history, and other conditions. See fueleconomy.gov for more info.
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