I logged into My GMC this morning to renew our internet package for a road trip and had this alert in there. Looks like it was issued yesterday.GM Recall #: N182155400
NHTSA # AWAITING #
Date Issued: May 24, 2018
Recall Title: SDM Loss of Communication
General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2018 model-year GMC Terrain vehicles. In these vehicles, the sensing diagnostic module (SDM), which provides crash sensing and deploys airbags in the event of a crash, may not power down correctly when the vehicle is powered off. If this condition occurs, the SDM may be inoperative when the vehicle is restarted. If the SDM is inoperative when the vehicle is started, the airbag warning lamp will be illuminated, the driver information center will display a “service restraint system” message, and warning chimes will sound. If the SDM is inoperative, the SDM will not detect a crash or command deployment of airbags, increasing the risk of injury in a crash.
Safety Risk Description:
If the SDM is inoperative, the SDM will not detect a crash or command deployment of airbags, increasing the risk of injury in a crash.
Dealers will reprogram the SDM with updated software.