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HomeGmcSierra 3500 → 2020

2020 Gmc Sierra 3500 Recalls & Complaints

8

open safety recalls on record

Critical

72 owner complaints filed · Severity Index 0.56 · updated 2026-08-07

The recalls

Critical19V814000

Seat Belts:Pretensioner

vehicle fire could result if materials ignite inside the vehicle.

Remedy & full details

GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.

General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.

Serious20V142000

Latches/Locks/Linkages:Hood:Latch

If a striker wire fractures, the hood may open unexpectedly while driving, raises the risk of a crash.

Remedy & full details

GM will notify owners, and dealers will replace the hood assembly, free of charge. The recall began April 13, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192284960.

General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The hood-latch striker wires may not have been heat-treated properly, possibly causing them to fracture.

Serious20V792000

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, raises the risk of injury in a crash.

Remedy & full details

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.

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.

Serious20V446000

Air Bags:Side/Window:Curtain:Inflator

If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, raises the risk of injury in a crash.

Remedy & full details

GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.

Serious20V324000

Structure:Body:Hood

If a striker wire fractures, the hood may open unexpectedly while driving, raises the risk of a crash.

Remedy & full details

GM will notify owners, and dealers will replace the hood assembly, free of charge. For hoods sold over the counter, dealers will contact customers with instructions for hood replacement. The recall began July 7, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202306490.

General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles previously recalled under 20V-142. Some of the vehicles in 20V-324 were not part of Recall 20V-142 but received defect parts during another service (typically during collision repair). The hood-latch striker wires on replacement hoods installed for Safety Recall 20V-142 may not have been heat-treated properly, possibly causing them to fracture.

Serious24V060000

Latches/Locks/Linkages:Tailgate:Latch

unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and raises the risk of a crash.

Remedy & full details

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.

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.

Serious24V797000

Power Train:Automatic Transmission:Control Module:Software

Rear wheel lock-up can raises the risk of a crash.

Remedy & full details

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.

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.

Serious26V083000

Power Train:Automatic Transmission:Control Module:Software

Rear wheel lock up raises the risk of a crash.

Remedy & full details

Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 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 N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.

General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.

Complaint volume

72 this model-year 6 median, same year

Volume alone is not a fault rate — popular vehicles attract more reports. Read it next to the severity mix below.

What owners reported happened

6Crashes
4Fires
4Injuries
0Deaths

Across 72 complaints. Severity Index 0.56.

Severity Index weights each complaint's reported outcome (death ×10, injury ×4, fire ×3, crash ×2) and divides by total complaints. It measures how severe reports are, not how often faults occur.

What owners report most

Power Train19 · 26%Electrical System8 · 11%Service Brakes7 · 10%Unknown Or Other6 · 8%Engine6 · 8%Fuel/Propulsion System5 · 7%Structure · Body4 · 6%Tires3 · 4%
  1. Power Train — 19 reports
  2. Electrical System — 8 reports
  3. Service Brakes — 7 reports
  4. Unknown Or Other — 6 reports
  5. Engine — 6 reports
  6. Fuel/Propulsion System — 5 reports
  7. Structure:Body — 4 reports
  8. Tires — 3 reports
  9. Steering — 1 reports
  10. Electrical System:12v/24v/48v Battery — 1 reports

What to do

  1. Find your 17-character VIN on the driver's door jamb or the base of the windscreen.
  2. Check it against NHTSA's official lookup at nhtsa.gov/recalls — the authoritative record for your exact car.
  3. Book the repair with any franchised dealer. Safety recall work is free, with no time limit and regardless of who owns the car now.

Other model years

1997 (3) · 1998 (4) · 1999 (3) · 2000 (3) · 2001 (3) · 2002 (3) · 2003 (1) · 2004 (1) · 2005 (1) · 2006 · 2007 (3) · 2008 (3) · 2009 (5) · 2010 (5) · 2011 (5) · 2012 (4) · 2013 (4) · 2014 (3) · 2015 (7) · 2016 (6) · 2017 (7) · 2018 (6) · 2019 (7) · 2020 · 2021 (5) · 2022 (3) · 2023 (1) · 2024 (3) · 2025 (1) · 2026 (2)

Numbers in brackets are open recall campaigns for that year.

Questions

Does an open recall mean the car is unsafe to drive?

Not usually. NHTSA issues a "do not drive" or "park outside" advisory when a defect is dangerous enough to keep you out of the car — those are flagged Critical above. Everything else should be repaired promptly but is not an immediate stop-driving order.

Do I pay for recall repairs?

No. Federal law requires the manufacturer to fix a safety recall free of charge, including parts and labour, whether or not you are the original owner.

Why are there complaints but no recalls?

Complaints are unverified reports filed by owners. They can prompt an investigation, but many never become recalls — either the fault isn't safety-related or it isn't widespread.