2021 Chevrolet Silverado 3500: raw data

Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.

vehicle2021 / chevrolet / silverado-3500
known issues7 clusters (reviewed 2026-08-21)
complaints40 on file (2020-10-11 → 2026-09-11)
recalls5
investigations1
fars72 occupant deaths, crash years 2010-2024 (legacy-code)
indexedyes
licenseCC BY 4.0 (derived)

Known Issues clusters all years →

Power tailgate unintended opening and closingLATCHES/LOCKS/LINKAGES13 complaints2023-07 → 2026-04silverado3500-2021-tailgate-unintended-open
  • 11734635 Water entered tailgate through drainage hole in tailgate cap. The water then dripped on the tailgate switch causing it to short out. This short circuit caused my tailgate to open and close randomly without pressing any switches or buttons or key fobs
  • 11607467 The contact stated while the vehicle was parked in the rain at night, the contact became aware that the tailgate had opened unintendedly. The contact stated that the failure also occurred while driving over bumpy road surfaces
  • 11529880 Automatic tailgate open by itself while vehicle was traveling at 65mph on I64 in Virginia between Charlottesville and Waynesboro. And when we stopped the tailgate reclosed by itself. But we lost our load in bed of truck
DEF system faults and reduced-power modeFUEL/PROPULSION SYSTEM4 complaints2022-07 → 2026-02silverado3500-2021-def-emissions-reduced-power
  • 11719345 Service engine light kept coming on the dash, and the code came back to a faulty DEF heater. My truck had a reduced power countdown on the dash indicating the truck was going go to into limp mode after x amount of miles
  • 11716547 My 2021 chevy 3500hd diesel had the engine light come on and the service emissions system popped up in the info screen. It said in so many miles speed would be limited. I took it to the dealer and they said the def tank would need replaced
  • 11632370 Injector #4 connector harness issue- Known issue on the 6.6L duramax. Driving with my children for Christmas pickup and power reduction occurred while passing another car on the road. Causing us to hit the breaks as the truck wouldn’t allow us to pass
Transmission and powertrain loss of drivePOWER TRAIN5 complaints2021-09 → 2026-02silverado3500-2021-transmission-powertrain-failure
  • 11605693 our truck made a loud boom noise and immediately stopped. Warning lights on the dash began coming on, when the gas pedal was pressed it made a loud RPM sound of engine revving, following by barely coasting action. We were able to drift into the turn lane
  • 11691701 The contact stated that while driving approximately 65 MPH, the vehicle unexpectedly went into Low Power Mode, with the check engine and low power mode warning lights illuminated. The contact was able to restart the vehicle
  • 11543559 When I shift the vehicle to park and turn it off, about 90% of the time the instrument panel will display a message that says “Shift to park”, and the electrical components will not shut down. The vehicle is in park, but the computer won’t detect it
Engine lifter failure and oil consumptionENGINE1 complaints2025-11 → 2025-11silverado3500-2021-engine-lifter-oil-consumption
  • 11698677 My 2021 Chevy Silverado 3500 [XXX] Motor began requiring a quart of oil every 3-4 weeks. I took my vehicle to a GM dealer in October 2024 and the stated the couldn't find any issues. Fast forward to December 2024 my motor began reading low compression…
AC compressor seizure with steering and brake lossSTEERING, ELECTRICAL SYSTEM, SERVICE BRAKES1 complaints2024-12 → 2024-12silverado3500-2021-ac-belt-steering-brake-failure
  • 11631152 Smelled burning smell, no noise or dash lights, thought it was another car. 1 minute later, heard a thump from under hood and "Charging System Failure" came on dash. Decided to take to Chevy dealer, which was 5 minutes away. Within next 2 minutes steering…
Trailer lighting module intermittent failureELECTRICAL SYSTEM, EXTERIOR LIGHTING1 complaints2021-03 → 2021-03silverado3500-2021-trailer-lighting-module
  • 11404449 THE NEW GM 2021 TRAILER LIGHTING MODULE AND/OR SYSTEM IS DEFECTIVE. IT FAILS A PRE-CONNECTION TEST WITH TESTER, GIVES "CHECK TRAILER WIRING" WARNING ON DASH WITHOUT A TRAILER CONNECTED AND TURNS OFF ANY TRAILER LIGHTING CONNECTED WITHOUT WARNING
Service brake abnormal noise and pad ejectionSERVICE BRAKES2 complaints2024-06 → 2024-11silverado3500-2021-service-brake-abnormal-noise
  • 11623512 The contact stated while driving at approximately 45 MPH, the brake pedal was depressed and extended to the floorboard, and the vehicle almost crashed into the rear of another vehicle. The contact later discovered that the rear driver’s side brake pad had been ejected
  • 11593978 The contact stated that while driving at various speeds and attempting to depress the brake pedal, there was an abnormal sound coming from the brakes. There were no warning lights illuminated. The vehicle was taken to a local dealer where the brakes were replaced

NHTSA complaints (summary) all years →

countearliest_datelatest_datecrash_flaggedfire_flaggedtop_components
402020-10-112026-09-1111ELECTRICAL SYSTEM:12; POWER TRAIN:7; LATCHES/LOCKS/LINKAGES:6; STRUCTURE:6; UNKNOWN OR OTHER:5

Recalls all years →

campaign_numberreport_received_datecomponentsummaryconsequenceremedy
21V75800029/09/2021SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULEGeneral Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles with electronic brake control modules (EBCM) replaced during vehicle assembly. The bolts that attach the brake pressure modulator valve (BPMV) assembly may not be properly tightened, which could fail to seal the two sub-assemblies and allow water intrusion.Water in the BPMV may cause an electrical short circuit and increase the risk of fire.Owners are advised to park outside and away from other structures until the recall repair is completed. Dealers will replace the BPMV assembly, free of charge. Owner notification letters were mailed on October 20, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212349181.
20V79200017/12/2020SEAT BELTSGeneral Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
20V81100023/12/2020SEAT BELTSGeneral Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202322230.
24V06000001/02/2024LATCHES/LOCKS/LINKAGES:TAILGATE:LATCHGeneral Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in park.An unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed May 17, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232426400.
24V79700024/10/2024POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWAREGeneral Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.Rear wheel lock-up can increase the risk of a crash.Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.

Investigations all years →

action_numberstatussubjectcomponentsopenedclosedrecall_campaignsummary
PE21010closedAir Bag MalfunctionAIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE2021-04-092023-08-24·On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs.Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001

FARS occupant deaths all years →

crash_yearsoccupant_deathsmatch_typevpic_recovered
2010-202472legacy-code0

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.

Cite this

Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.

Wrench.Pro (2026). 2021 Chevrolet Silverado 3500 vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2021/chevrolet/silverado-3500
@misc{wrenchpro_2021_chevrolet_silverado_3500_2026,
  author = {Wrench.Pro},
  title = {Wrench.Pro vehicle data: 2021 Chevrolet Silverado 3500},
  year = {2026},
  howpublished = {\url{https://www.wrench.pro/data/vehicles/2021/chevrolet/silverado-3500}},
  note = {Derived from NHTSA public records. CC BY 4.0.}
}

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