GMC Airbag Module Reset — $75 flat
GMC calls it the Sensing & Diagnostic Module (SDM). After a deployment it locks its crash data — the light stays on and no scan tool clears it. We reset your original module on the bench, 24–48 hours, plug-and-play on return.
GMC dealer: new SDM typically $350–$1,200 + programming + the wait for the part
Auto Module Lab: $75 flat — your original module, already matched to your GMC
What we reset on a GMC
GMC trucks and SUVs use the same GM SDM family as Chevrolet: after a deployment the module locks and replacement from the dealer means a new part plus programming. A bench reset of your original SDM keeps it VIN-matched and plug-and-play.
Where it lives: under the center console or under a front seat. Disconnect the battery, wait 10+ minutes, photograph the connectors, unbolt and ship just the module.
Common GMC models we see
- Sierra 1500
- Sierra 2500HD
- Yukon
- Acadia
- Terrain
- Canyon
Different GMC? The service covers the full range — these are just the frequent flyers.
GMC reset questions
How much does the dealer charge instead?
A new module is typically $350–$1,200 in parts depending on the GMC model, plus installation and programming labor. Our bench reset of your original is a flat $75, with 24–48 hour bench turnaround.
Where is the SDM on my GMC?
Typically under the center console or under a front seat. Disconnect the battery and wait 10+ minutes before unplugging it, photograph the connectors, and ship just the module — see the packing instructions in your confirmation email.
Do you need my VIN?
It helps — add it at checkout and we verify the module matches your vehicle before the bench work. It's optional, but it catches mixed-up modules from body shops handling several cars.
Will clearing the crash data turn my GMC airbag light off?
Yes — when the light is caused by stored crash data or hard faults in the SDM, clearing it removes the cause. You still need the rest of the system healthy: deployed airbags, blown seat-belt tensioners, or damaged impact sensors must be replaced or the light will return with live codes.