2026 Gmc Sierra 3500 problems, complaints & recalls
Most-reported problem areas: Wheels (2) · Steering (1) · Service Brakes, Hydraulic (1)
🧭 Reliability snapshot
Compared against other Gmc Sierra 3500 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Fuel System, Gasoline:delivery:fuel Pump:control/Drive Module 2026-03-05 · campaign 26V129000 · 11,807 vehicles
Defect: 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 2026-02-26 · campaign 26V114000 · 5,861 vehicles
Defect: 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, Terra
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 owner’s 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,
Service bulletins (170)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-10-23 · N262572131-01 · Service Campaign
customer satisfaction program. certain vehicles listed above may have a condition in which the oil galley in the cylinder head was not drilled properly. dealers are to inspect and if necessary, replace the engine.
Unknown Or Other 2026-10-17 · PIC6602Y · Service Bulletin/Repair Instructions
this preliminary information communicates to dealers steps to follow to obtain an iok radio.
Unknown Or Other 2026-10-07 · PIT6110L · Service Bulletin/Repair Instructions
this preliminary information communicates an issue with the ses mil and dtc p062b and engineering is currently investigating.
Unknown Or Other 2026-09-28 · PIT6457C · Service Bulletin/Repair Instructions
this preliminary information is for technicians that may see dtcs that are history and should not perform any part replacements. they should follow the notes mentioned prior to anything being replaced.
Unknown Or Other 2026-09-28 · PIC6540K · Service Bulletin/Repair Instructions
this preliminary information communicates to dealers a procedure to reset the radio.
Unknown Or Other 2026-09-26 · PIT6553 · Service Bulletin/Repair Instructions
this preliminary information communicates that engineering is working on a resolution and no parts should be replaced at this time.
Showing the 6 most recent of 170 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-06 · Steering · 4,000 mi“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 to the dealer and the contact was informed that the …”
2026-08-29 · Wheels“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 bed. on a heavy-duty 3500-series truck built for h…”
2026-08-29 · Wheels“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 bed. on a heavy-duty 3500-series truck built for …”
2026-07-08 · Service Brakes, Hydraulic · 500 mi“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 differently. additionally, the dealer stated that the tra…”
2026-06-16 · Power Train“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 for the first time they are still working on it but…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.