Sensing module may not power down correctly
Defect Summary
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.
Safety Consequence
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.
Corrective Action
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.
Similar Recalls
Other recalls from General Motors, Llc or involving Air Bags.
FAQ: Recall 18V340000
Your rights, the repair process, and what each field on this page means.
What is recall 18V340000?
NHTSA recall 18V340000 was issued by General Motors, Llc on May 24, 2018. It addresses: Sensing module may not power down correctly. The recall affects approximately 88,503 vehicles, with the defect involving the Air Bags component.
How do I get this recall repaired?
Contact any authorized General Motors, Llc dealer and reference NHTSA recall ID 18V340000 or the manufacturer campaign number 18179. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.