2021 Chevrolet Tahoe, 2021 GMC Yukon Recall: Dealer service technicians may have calibrated the brake system…
NHTSA campaign 21V579000 · Service Brakes, Hydraulic · filed Jul 29, 2021 · verified Sep 14, 2026
The defect
General Motors, LLC (GM) is recalling certain 2021 Chevrolet Tahoe and GMC Yukon vehicles. Dealer service technicians may have calibrated the brake system incorrectly, affecting Electronic Stability Control (ESC) , traction control, Anti-Lock Brake System (ABS), and braking while towing a trailer.
The risk
Overall braking performance may be compromised, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will recalibrate the brake system control module, free of charge. Owner notification letters were mailed on August 27, 2021. Owners may contact Chevrolet customer service at 1-800-222-1202; GMC customer service at 1-800-462-8782. GM's number for this recall is N212340970.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
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Source: NHTSA recall database, campaign 21V579000 (manufacturer number N212340970). Data last verified Sep 14, 2026.