GMC 2018 GMC TERRAIN Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2018 GMC TERRAIN
Brand
GMC
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2018
General Motors LLC is recalling certain 2018 GMC TERRAIN vehicles due to air bags: air bag/restraint control module issues. If the SDM becomes inoperative, it will not detect a crash or command the necessary air bag deployment, increasing the risk of injury in the event of .
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
General Motors LLC (GM) is recalling certain 2018 GMC Terrain vehicles. The sensing diagnostic module (SDM) that senses a crash and deploys the necessary air bags may not power down correctly when the vehicle is shut off, causing it to be inoperative when the vehicle is restarted.
Reported concern (NHTSA)
If the SDM becomes inoperative, it will not detect a crash or command the necessary air bag deployment, increasing the risk of injury in the event of a crash.
Recommended Action
Per NHTSA guidance
GM will notify owners, and dealers will reprogram the SDM with updated software, free of charge. The recall began June 29, 2018. Owners may contact GMC customer service at 1-800-462-8782. GM's number for this recall is 18179.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026