B0083 39, B0084 39, B0085 39, B0086 39, B0087 39, B0088 39

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The SDM has received a Not Ok (NOK) message from the impact sensor.
The SDM has not received a message.
The SDM has received invalid serial data from the impact sensor.