2022 GMC Acadia Recall: Sensing diagnostic module (SDM) may have been left in "manufacturing mode"…
NHTSA campaign 21V702000 · Air Bags · filed Sep 10, 2021 · verified Jul 30, 2026
The defect
General Motors, LLC. (GM) is recalling certain 2022 GMC Acadia vehicles. The sensing diagnostic module (SDM) may have been left in "manufacturing mode" and not activated at the assembly plant prior to shipment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
The risk
The air bags will not deploy with an unactivated SDM, increasing the risk of injury in 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
The vehicles will be returned to the assembly plant for SDM activation. Both affected vehicles are still in dealer inventory and therefore no owner notification letters will be mailed. Owners may contact GMC 1-800-462-8782. GM's number for this recall is N212344261.
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
Related recalls
More GMC Acadia recalls
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Other campaigns involving GMC vehicles
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- 2026 Chevrolet Express and 1 other model — Gear shifter may provide inaccurate gear selection feedback…
- 2018 Chevrolet Silverado 1500 and 5 other models — Left-side or right-side roof rail air bag (RRAB) inflator…
Source: NHTSA recall database, campaign 21V702000 (manufacturer number N212344261). Data last verified Jul 30, 2026.