Most common 2025 GMC Sierra 2500 problems
Share of the 28 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
GMC Sierra 2500 complaints by model year
Best Sierra 2500 years: 2012, 2014, 2013. Years to avoid: 2024, 2025, 2020, 2021, 2022. Compare all years →
2025 GMC Sierra 2500 recalls (1)
Tires
General Motors, LLC (GM) is recalling certain 2024-2025 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with the enhanced towing option and 20-inch accessory tire/wheel package.
Remedy: Dealers will inspect, update the engine control module (ECM) software, apply a tire label overlay, inflate tires to the correct pressure, and perform a tire pressure monitor system (TPMS) re-learn process as necessary,…
What 2025 GMC Sierra 2500 owners say
Brakes
The contact owns a 2025 GMC Sierra 2500. The contact stated that while depressing the brake pedal to come to a complete stop, the brakes made a loud whistling and squealing sound. There were no warning lights illuminated. The vehicle was taken to the dealer, Bellamy Strickland Chevrolet GMC (145 Industrial Blvd, McDonough, GA 30253); who was unable to determine the cause of the failure. The dealer informed the contact that it was a known issue with no fix for the failure. The vehicle was not repaired. The vehicle was taken to a second dealer, who was also unable to diagnose the vehicle. The manufacturer was not informed of the failure. The mileage was approximately 5,000.
We noticed that the brakes were really soft. We literally had to push on the brakes with excessive force. We took it to Lynch - West Bend, WI for a service call and was told that nothing was wrong with it. After leaving the dealership we did our own research (the hubby is a certified master technician himself). Come to find out through GM, contacts through TBM brakes and Duramax Forum.com "brake pedal effort" we found the issue and a solution and we fixed it ourselves. This truck is brand spanking new and the dealership threw their hands in the air with a safety issue and let us drive out of the parking lot. Imagine driving away after being told no issue to end up in an accident due to failed brakes. Who's to blame for that? Certainly not the customer. It was only when the new car sales manager took the truck for a drive, he agreed that there was a problem. …
Steering
The contact owns a 2025 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, after driving over a small pothole on the road, the alignment was dramatically altered, causing the vehicle to slightly veer out of the intended lane even though the steering wheel was centered. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The contact stated that he previously owned another vehicle of the same year, make, and model that had experienced the same failure and a case was filed with the manufacturer for the vehicle, resulting in a buyback. The failure mileage was 2,000.
Power steering pump failed when decelerating after 9500 miles. When power steering pump fails, power assisted braking also fails. Upon deceleration, I could not turn the steering wheel at all or stop the vehicle without extreme pressure on the brake pedal. I narrowly avoided impact with a concrete barricade at the entrance to a parking lot. GM issued a technical bulletin (DCS7112) on January 16, 2025 identifying the problem and failure and directing dealerships to replace the pump on inventory vehicles. No mention was made to repair or notify owners of the potential problem.
Engine & cooling
The contact owns a 2025 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. In addition, the contact stated that the RPM was fluctuating while driving. The vehicle was towed to a local dealer however, the vehicle was not diagnosed or repaired due to the warranty. The manufacturer was made aware of the failure. The failure mileage was approximately 600.
We were towing a fifth wheel camper with our truck on an interstate highway in Pennsylvania when our serpentine belt burst suddenly and without warning. Our truck is a 2025 model with only 10,000 miles driven. We lost all power steering and power brakes of both the truck and the camper and the motor shut off while we were driving at 65 mph. My husband struggled to gain control of the truck and camper which was severely fishtailing and was eventually able to get over to the shoulder and stop the vehicles. We were towed to a GMC dealership where a factory technician happened to be on site providing an in-service for the dealership's service team. He inspected our truck and we were told that he said that GMC is aware of catastrophic failures in these serpentine belts. We were also told that he took photos and was sending a report to the GMC factory regarding our situation. …
Frequently asked questions
Is the 2025 GMC Sierra 2500 a good car?
Based on 28 owner complaints filed with NHTSA, the 2025 Sierra 2500 rates use caution: 4.7× as many complaints as a typical year of the Sierra 2500 at the same age. It is one of the Sierra 2500 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2025 GMC Sierra 2500?
The brakes — 7 complaints, 25% of all complaints for this model year. Next are the steering (7) and engine & cooling (4).
How many recalls does the 2025 GMC Sierra 2500 have?
There is 1 recall for the 2025 GMC Sierra 2500, the most recent from August 13, 2026 (tires). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the GMC Sierra 2500?
The best years by complaints, compared at the same age, are 2012, 2014 and 2013. Years to avoid or approach with caution: 2024, 2025, 2020, 2021 and 2022. See the full GMC Sierra 2500 years comparison.
At what mileage do 2025 GMC Sierra 2500 problems happen?
The median mileage reported in complaints is about 2,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.