2026 GMC Sierra 3500 Problems, Complaints & Recalls
- Compared with other Sierra 3500 years
- Not enough data 28th of 31 for complaints
- Safety recalls
- 2 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 5 complaints with NHTSA about the 2026 GMC Sierra 3500. That ranks 28th out of 31 Sierra 3500 model years for complaints. The most reported problem area is power train (2 complaints, 40%), typically at around 500 miles. There are 2 safety recalls covering this model year.
- 5owner complaints
- 2safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2026 GMC Sierra 3500 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Power Train | 2 | 40% | 500 | — | — |
| Wheels | 2 | 40% | — | — | — |
| Electrical System | 1 | 20% | — | — | — |
| Fuel/propulsion System | 1 | 20% | — | — | — |
| Service Brakes, Hydraulic | 1 | 20% | 500 | — | — |
| Steering | 1 | 20% | 4,000 | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
2026 GMC Sierra 3500 recalls (2)
Tap a recall to see the problem, the risk and the fix.
Fuel system, gasoline:delivery:fuel pump:control/drive module
Problem: General Motors, LLC (GM) is recalling certain 2025-2026 Chevrolet Silverado 3500, and GMC Sierra 3500 vehicles with gasoline engines and dual fuel tanks (RPOs L8T and N2N). The rear fuel pump may not transfer adequate fuel to the front tank, causing an engine stall.
Risk: An engine stall increases the risk of a crash.
Fix: The vehicle's engine control module (ECM) will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed April 8, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262544420. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 5, 2026.
Equipment:other:owners/service/other manual
Problem: General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tahoe, Traverse, GMC Acadia, Hummer EV Pickup, Hummer EV SUV, Sierra 1500, 2500, 3500, Sierra EV, Terrain, Yukon, and Yukon XL vehicles. The radio may not have been set to the correct status to download the electronic owner's manual during production. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, âOccupant Protection.â
Risk: Without an owner's manual to consult, owners may not know how to safely use and operate the vehicle, increasing the risk of injury in a crash.
Fix: Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic ownerâs manual, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GM customer service at 1-866-467-9700, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-333-4223. The manufacturer's number for this recall is N252540430. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 26, 2026.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
The contact owns a 2026 GMC Sierra 3500. The contact stated that while driving 2 MPH, the steering wheel failed to function as intended. The contact stated that while making a right turn, the vehicle hesitated. The dealer was contacted by phone and made aware of the failure. The vehicle was taken…
The vehicle was delivered from the factory with a severe size mismatch between its primary rolling stock and its emergency spare tire. The truck features factory-installed 20-inch wheels and tires but was manufactured and shipped with an undersized 18-inch spare tire assembly secured underneath the…
The vehicle was delivered from the factory with a severe size mismatch between its primary rolling stock and its emergency spare tire. The truck features factory-installed 20-inch wheels and tires but was manufactured and shipped with an undersized 18-inch spare tire assembly secured underneath the…
The contact owns a 2026 GMC Sierra 3500. The contact stated that while driving at 35-40 MPH on the interstate and towing a loaded trailer, the vehicle experienced reduced braking performance. No warning lights illuminated. The local dealer was contacted and informed that the brakes performed…
Have been driving it on four separate occasions and the engine will start running rough and shut off leaving me with no power brakes or power steering. Once when I was going about 30 miles an hour the other three times when I was coming to a stop with a trailer on just took it in Kendall Chevrolet…
Other GMC Sierra 3500 years
See all GMC Sierra 3500 problems by year, every GMC model, or the GMC VIN decoder.
Similar GMC models
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Frequently asked questions
What are the most common problems with the 2026 GMC Sierra 3500?
Owners most often report power train, wheels, electrical system problems. The top one, power train, accounts for 2 complaints.
Was there a recall on the 2026 GMC Sierra 3500?
Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2026 GMC Sierra 3500 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Sierra 3500 model years, the 2026 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.