← Look into the faults of the GMC Yukon
Trouble code
B0040: possible causes and documented repairs — 2000–2006 GMC Yukon
Of the records of the 2000–2006 GMC Yukon, 3 state trouble code B0040 (Manufacturer communication: 3). The technical documents say how to deal with 1 of its possible causes. They are listed by the number of matching records, most first.
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Causes the technical documents say how to deal with (1)
AIR BAG indicator on with side impact module DTCs (connector CPA replacement)
1 matching record
The AIR BAG indicator is illuminated and side impact module DTCs B0028, B0029, B0040 and B0041 are set.
How to tell
What to do
- The correction is to replace the wiring retainer CPA of the passenger/driver seat side inflatable restraint module at the side impact module connector in the seat.
Related symptoms, trouble codes and warning displays
What the technical documents state together with the faults above.
- Warning display
- Air bag light
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.

