{"id":"2026_gmc_sierra_3500hd","make":"GMC","make_slug":"gmc","model":"Sierra 3500HD","model_slug":"sierra-3500hd","year":2026,"url":"/gmc/sierra-3500hd/2026/","pts":[],"configs":[],"vclass":"Heavy-duty pickup","segment":"Heavy-duty pickup","epa_certified":false,"recalls":[{"campaign":"26V129000","component":"FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE","mfr":"General Motors, LLC","reported":"2026-03-05","owner_notified":"2026-04-08","units":11807,"summary":"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.","consequence":"An engine stall increases the risk of a crash.","remedy":"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.","notes":"","park_outside":false,"do_not_drive":false,"mfr_campaign":"N262544420","initiated_by":"MFR","variants":[],"severity":"high"},{"campaign":"26V114000","component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr":"General Motors, LLC","reported":"2026-02-26","owner_notified":"2026-04-16","units":5861,"summary":"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, \u00e2\u20ac\u0153Occupant  Protection.\u00e2\u20ac\ufffd","consequence":"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.","remedy":"Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner\u00e2\u20ac\u2122s 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.","notes":"","park_outside":false,"do_not_drive":false,"mfr_campaign":"N252540430","initiated_by":"MFR","variants":[],"severity":"high"}],"recall_count":2,"critical_count":0,"park_outside":false,"do_not_drive":false,"score":84,"grade":"B","complaints":{"count":4,"crash":0,"fire":0,"injured":0,"deaths":0,"comps":[["Power Train",2],["Wheels",2],["Electrical System",1],["Fuel/Propulsion System",1],["Service Brakes, Hydraulic",1]],"by_year":{"2026":4},"excerpts":[["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\u2026"],["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\u2026"],["2026-07-08","Power Train","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, \u2026"]]},"investigations":[],"ncap":[],"popularity":12,"headline":{"range":null,"mpg":null,"ncap":null,"complaints":4},"presskit_trims":[],"generated_at":"2026-09-11 06:27 UTC","sources":["EPA fueleconomy.gov","NHTSA recalls","NHTSA complaints","NHTSA NCAP","NHTSA investigations"]}