NHTSA campaign 18V340000 · Manufacturer campaign 18179
GMC Recall 18V-340: Sensing Module may not Power Down Correctly
NHTSA recall 18V340000 (Manufacturer campaign 18179) was reported by General Motors LLC on May 24, 2018, with 88,503 vehicles potentially affected (per NHTSA). NHTSA's record lists the GMC Terrain for the 2018 model year. Owners were notified on June 29, 2018, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 18V340000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
GMC VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 18V340000 (also written 18V-340 or 18V340)
- Filed by
- General Motors LLC
- Manufacturer campaign number
- 18179
- Report received
- Potentially affected
- 88,503 vehicles (per NHTSA)
- Component
- Air Bags — Air Bag/Restraint Control Module
- Owners notified
Repair completion: 96.5% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 18V340000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
GMC
GMC Terrain
- 2018 · Vehicles built March 14, 2017 – May 22, 2018 (per NHTSA)
NHTSA's recall notice
As NHTSA's recall record states it for campaign 18V340000.
Defect description
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.
Manufacturer remedy
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.
Notes
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.safercar.gov.
Sources
Official NHTSA notice for recall 18V340000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.