Owners have filed 14 complaints
about the 2026 GMC Sierra 2500 with NHTSA between 2026 and 2026.
The largest single group is the electrical system.
Across this model's run it ranks 28 of 30 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 9
Against the median year of the GMC Sierra 2500. 50 means typical for this
model; 100 means roughly double.
Severity — 37
7.1% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — not reported
Too few complaints recorded a mileage to measure this.
How 2026 compares with every other GMC Sierra 2500
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade:
A
B
C
D
F
ungraded
What breaks on a 2026 GMC Sierra 2500
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
Steering
321.4%
Electrical System
321.4%
0 crashes, 1 fires · median 9,000 mi
Tires
214.3%
Brakes
214.3%
Seats
17.1%
Fuel & Propulsion
17.1%
Suspension
17.1%
Engine & Cooling
17.1%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Jan 2026peak 5Aug 2026
Complaints that involved harm
Reports where the owner recorded a crash, a fire, an injury or a death.
at 9,000 milesMissouri City, TXFire
ELECTRICAL SYSTEM
The contact called on behalf of an insurer who owns a 2026 GMC Sierra 2500. The contact stated that 15 minutes after the vehicle was parked and turned off, a neighbor informed the owner that the vehicle had caught on fire. The owner and the neighbor extinguished the fire using water hoses. The contact stated that the fire originated under the rear passenger’s side seat and was caused by an overheating amplifier that had short-circuited. No warning light was illuminated. The Fire Department responded to the scene and filed a report. There was no Police report filed. There was no injury or property damage. The vehicle remained parked, and the owner intended to return the vehicle to the dealer. The owner was provided a loaner vehicle. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened, but no assistance was provided. The failure mileage was approximately 9,000.
NHTSA complaint #11752669 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Rosemount, MN
STEERING
Ongoing issues with Steering pull to right, and brake pull to hard right when applying brakes, which also turns steering wheel to right upon application. Have to keep steering wheel towards left with constant pressure to go in straight line and when braking. Driver has to be aware of changing road conditions that could affect that. Multiple inspections at multiple dealers have found no obvious issues, and multiple alignments performed, with tires also being replaced have had no success in correcting issue. Front suspension starting to feel loose due, and rear suspension squeak when going over bumps. Also recently found rear axle is shifted slightly to right. Suspect all are related. No parts replaced to date other than the tires. Happens daily. No accidents to date. Daily driver with long trips at times. Steering pull Issue has present since new but everything else has occurred since about 1800 miles and has progressively become worse. Conditions becomes worse at highway/freeway speeds of 65 to 80, but occurs as low as 10mph. Going back to 3rd dealer to look at it again. Truck is 2026 with 10,583 miles.
NHTSA complaint #11755350 — an unverified report by a vehicle owner.
Rosemount, MN
SUSPENSION
Ongoing issues with Steering pull to right, and brake pull to hard right when applying brakes, which also turns steering wheel to right upon application. Have to keep steering wheel towards left with constant pressure to go in straight line and when braking. Driver has to be aware of changing road conditions that could affect that. Multiple inspections at multiple dealers have found no obvious issues, and multiple alignments performed, with tires also being replaced have had no success in correcting issue. Front suspension starting to feel loose due, and rear suspension squeak when going over bumps. Also recently found rear axle is shifted slightly to right. Suspect all are related. No parts replaced to date other than the tires. Happens daily. No accidents to date. Daily driver with long trips at times. Steering pull Issue has present since new but everything else has occurred since about 1800 miles and has progressively become worse. Conditions becomes worse at highway/freeway speeds of 65 to 80, but occurs as low as 10mph. Going back to 3rd dealer to look at it again. Truck is 2026 with 10,583 miles.
NHTSA complaint #11755350 — an unverified report by a vehicle owner.
Rosemount, MN
SERVICE BRAKES
Ongoing issues with Steering pull to right, and brake pull to hard right when applying brakes, which also turns steering wheel to right upon application. Have to keep steering wheel towards left with constant pressure to go in straight line and when braking. Driver has to be aware of changing road conditions that could affect that. Multiple inspections at multiple dealers have found no obvious issues, and multiple alignments performed, with tires also being replaced have had no success in correcting issue. Front suspension starting to feel loose due, and rear suspension squeak when going over bumps. Also recently found rear axle is shifted slightly to right. Suspect all are related. No parts replaced to date other than the tires. Happens daily. No accidents to date. Daily driver with long trips at times. Steering pull Issue has present since new but everything else has occurred since about 1800 miles and has progressively become worse. Conditions becomes worse at highway/freeway speeds of 65 to 80, but occurs as low as 10mph. Going back to 3rd dealer to look at it again. Truck is 2026 with 10,583 miles.
NHTSA complaint #11755350 — an unverified report by a vehicle owner.
Washington, PA
TIRES
No Incident Occurred. Tire Size 275/65R20. Tire Pressure Fluctuating between 59 and 71 PSI. 3 of 4 tires appear to have a defect. Was detailing the vehicle on 7/26/26 and noticed a tear in the Side wall on the Passenger side rear tire. About 3/4" to 1 inch away from the rim along the sidewall. Running parallel with the rim for about 4". Found similar defects and indentation lines on the Passenger side front and Drivers side rear, in varying lengths around the rim. Vehicle has Not Towed, had a Load in the bed or used off road. 1,897 miles all Pavement Mixed HWY and Street use. Vehicle was Purchased 6/25/26. Scheduled for Service 7/28/26. Will have the Dealer look at the tires.
NHTSA complaint #11752991 — an unverified report by a vehicle owner.
at 9,000 milesMissouri City, TXFire
ELECTRICAL SYSTEM
The contact called on behalf of an insurer who owns a 2026 GMC Sierra 2500. The contact stated that 15 minutes after the vehicle was parked and turned off, a neighbor informed the owner that the vehicle had caught on fire. The owner and the neighbor extinguished the fire using water hoses. The contact stated that the fire originated under the rear passenger’s side seat and was caused by an overheating amplifier that had short-circuited. No warning light was illuminated. The Fire Department responded to the scene and filed a report. There was no Police report filed. There was no injury or property damage. The vehicle remained parked, and the owner intended to return the vehicle to the dealer. The owner was provided a loaner vehicle. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened, but no assistance was provided. The failure mileage was approximately 9,000.
NHTSA complaint #11752669 — an unverified report by a vehicle owner.
Windham, ME
TIRES
DOT AH9K82 3425 LT265/70R17 121/118Q All four brand new tires on my brand new truck have bulges on the sides of the tires. The truck feels floaty and unsafe at highway speeds. The car dealership is saying it’s fine, won’t replace them, and says it’s a known issue with the tire.
NHTSA complaint #11740229 — an unverified report by a vehicle owner.
Dayton, TX
STEERING
I recently purchased my vehicle from Big Star Dealership in Baytown Tx. At a little over 1000 miles i was towing a camper. The vehicle stalled, fuel pouring from engine. It was towed and repaired due to fuel pump failure. At a little over 3000 miles the vehicle would not start. Dealership initially said water contamination then changed it and said gasoline contamination and now they say DEF contamination. The vehicle stalling the first time almost caused me to wreck the vehicle
NHTSA complaint #11737988 — an unverified report by a vehicle owner.
Dayton, TX
ENGINE
I recently purchased my vehicle from Big Star Dealership in Baytown Tx. At a little over 1000 miles i was towing a camper. The vehicle stalled, fuel pouring from engine. It was towed and repaired due to fuel pump failure. At a little over 3000 miles the vehicle would not start. Dealership initially said water contamination then changed it and said gasoline contamination and now they say DEF contamination. The vehicle stalling the first time almost caused me to wreck the vehicle
NHTSA complaint #11737988 — an unverified report by a vehicle owner.
Dayton, TX
FUEL/PROPULSION SYSTEM
I recently purchased my vehicle from Big Star Dealership in Baytown Tx. At a little over 1000 miles i was towing a camper. The vehicle stalled, fuel pouring from engine. It was towed and repaired due to fuel pump failure. At a little over 3000 miles the vehicle would not start. Dealership initially said water contamination then changed it and said gasoline contamination and now they say DEF contamination. The vehicle stalling the first time almost caused me to wreck the vehicle
NHTSA complaint #11737988 — an unverified report by a vehicle owner.
Pineville, WV
ELECTRICAL SYSTEM
During normal use, the factory wireless phone charging pad in the center console overheated, produced visible smoke inside the cabin, and melted the charging surface area. No liquids or foreign metal objects were present. The phone was placed normally on the charging pad. The incident created a burning smell and visible damage to the interior trim. The system did not shut down before damage occurred. This appears to be a potential electrical or thermal safety failure in the factory-installed wireless charging system.
NHTSA complaint #11736469 — an unverified report by a vehicle owner.
Oswego, IL
STEERING
Brand new delivery there was a noise that changes with engine RPM. It also changed with turning the steering wheel. The dealer diagnosed a bad power steering pump. Due to possible metallic contamination all related parts that are connected to the power steering pump including the HydroBoost brake assist are going to be replaced
NHTSA complaint #11734694 — an unverified report by a vehicle owner.
Oswego, IL
SERVICE BRAKES
Brand new delivery there was a noise that changes with engine RPM. It also changed with turning the steering wheel. The dealer diagnosed a bad power steering pump. Due to possible metallic contamination all related parts that are connected to the power steering pump including the HydroBoost brake assist are going to be replaced
NHTSA complaint #11734694 — an unverified report by a vehicle owner.
Albany, OR
ELECTRICAL SYSTEM
Radio has zero sound - the issue is the radio sound also has the blinker sound, hands free safety/navigation guidance along with the On Star safety function. None of that is functional. The dealer states it's a known issue and parts are not available. How can this be when they keep building new units. GM has been contacted with zero help and no response around my safety concerns. While it seems like a small thing when we say radio I'm not concerned with the lack of music but this system controls way more than music.
NHTSA complaint #11727195 — an unverified report by a vehicle owner.
Kalispell, MT
SEATS
Metal/chrome decal on seat pulls hair frequently, making sitting back in a safe position uncomfortable. Fix this issue.
NHTSA complaint #11711666 — an unverified report by a vehicle owner.