Illustration. No freely licensed photo of this model found yet.

Recalls & complaints · NHTSA data

2021 GMC Sierra 3500 recalls

Every recall campaign and owner complaint NHTSA has on file for the 2021 model year. Not every vehicle is affected by every campaign: check a specific car by VIN below.

Recall campaigns: 5
Park-it warnings: 1
Complaints: 20
Latest campaign: Oct 24, 2024

Recall summary by component5

NHTSA Recalls API · cached ≤24 h

Component	Campaigns	Park‑it	Latest	Campaign IDs
Seat belts	2	–	Dec 23, 2020	20V811000 20V792000
Power train	1	–	Oct 24, 2024	24V797000
Latches/locks/linkages	1	–	Feb 1, 2024	24V060000
Service brakes, hydraulic	1	1	Sep 29, 2021	21V758000

Safety recalls5

NHTSA Recalls API · cached ≤24 h

1Park-it warnings

0Fixable over the air

Oct 24, 2024Latest campaign


Oct 24, 202424V797000	Power train: automatic transmission control module Rear wheel lock-up can increase the risk of a crash. DetailsHide details for campaign 24V797000 What's wrong General 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. Risk Rear wheel lock-up can increase the risk of a crash. Remedy 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. Campaign NHTSA 24V797000 · Oct 24, 2024
Feb 1, 202424V060000	Latches/locks/linkages: tailgate latch 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. DetailsHide details for campaign 24V060000 What's wrong General 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. Risk 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. Remedy 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. Campaign NHTSA 24V060000 · Feb 1, 2024
Sep 29, 202121V758000	Service brakes, hydraulic: power assist electric Water in the BPMV may cause an electrical short circuit and increase the risk of fire. Park outside, away from structures DetailsHide details for campaign 21V758000 What's wrong General 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. Risk Water in the BPMV may cause an electrical short circuit and increase the risk of fire. Remedy 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. Campaign NHTSA 21V758000 · Sep 29, 2021
Dec 23, 202020V811000	Seat belts 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… DetailsHide details for campaign 20V811000 What's wrong General 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. Risk 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. Remedy 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. Campaign NHTSA 20V811000 · Dec 23, 2020
Dec 17, 202020V792000	Seat belts 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… DetailsHide details for campaign 20V792000 What's wrong General 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. Risk 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. Remedy 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. Campaign NHTSA 20V792000 · Dec 17, 2020

To see whether a recall is still open on your car, enter the VIN at nhtsa.gov/recalls or the GMC recall lookup. Recall repairs are free at a franchised dealer (federal law; see limits).

Buying a used 2021 GMC Sierra 3500? Recalls cover the model; a history report checks one car's title, odometer and accident records. VinAudit history report → Sponsored · disclosure

Owner complaints by component20

NHTSA Complaints API · cached ≤24 h

20Complaints filed

0Involving a crash

0Involving a fire

0Injuries reported

Component	Complaints	%
Power train	7	35
Service brakes	5	25
Electrical system	4	20
Unknown or other	3	15
Engine	3	15
Fuel/propulsion system	2	10
Visibility	1	5
Back over prevention	1	5
Tires	1	5
Structure	1	5

An owner can tag several components, so percentages add up to more than 100. Complaints are unverified owner reports, de-duplicated by NHTSA ODI number.

Latest reports

Service brakes
“The contact filed the complaint on behalf of the owner of a 2021 GMC Sierra 3500. The contact stated that while the vehicle owner was driving at an undisclosed speed, the driver noticed that the rear wheels were…”
Filed 06/12/2026 · ODI 11743698
Power train
“During takeoff the transmission acted as if it was in neutral while I was crossing traffic luckily, the semi truck that was coming towards me was able to stop. I had the vehicle towed to a shop.”
Filed 11/24/2025 · ODI 11701315
Electrical system
“The contact owns a 2021 GMC Sierra 3500. The contact stated that while his wife had the vehicle idling with the rear defroster activated, shortly afterwards, she observed smoke coming from the plastic on the rear…”
Filed 09/08/2025 · ODI 11685740

Other GMC Sierra 3500 model years

All years: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020 · 2019 · 2018 · 2017 · 2016 · 2015 · 2014 · 2013 · 2012 · 2011 · 2010 · 2009 · 2008 · 2007 · 2006 · 2005 · 2004 · 2002 · 2001 · 2000

Other GMC models

All GMC models and years →

2021 GMC Sierra 3500 recall questions

How many recalls does the 2021 GMC Sierra 3500 have?

NHTSA lists 5 safety recall campaigns for the 2021 GMC Sierra 3500. The most recent, 24V797000 (reported October 24, 2024), concerns power train. 1 campaign carries a park-it or park-outside warning. Not every vehicle is covered by every campaign; check a specific car by VIN.

What are the 2021 GMC Sierra 3500 recalls for?

The largest group is seat belts, with 2 campaigns. Others: power train (1), latches/locks/linkages (1), service brakes, hydraulic (1). Each campaign below lists the defect, the risk and the free remedy.

What is the most common complaint about the 2021 GMC Sierra 3500?

Power train is the most-reported component, named in 7 complaints out of 20 filed with NHTSA (35%). Complaints are unverified owner reports.

How do I check if a recall is open on my 2021 GMC Sierra 3500?

Enter the 17-character VIN at nhtsa.gov/recalls or the GMC recall lookup. That shows campaigns still unrepaired on that exact car. Safety recall repairs are free at a franchised GMC dealer.

Check a specific GMC by VIN

Free · No signup · US-market vehicles, 1981+

Need the factory options too? See the GMC build sheet & window sticker guide.