GM Service Manual Online
For 1990-2009 cars only

Supplement To 05-08-50-008 Intermittent Heated Seats Inoperative/DTC B3941 - keywords heat seat inop

Subject:Supplement to 05-08-50-008, Intermittent Heated Seats Inoperative/DTC B3941

Models:2006 Cadillac Escalade, Escalade ESV, Escalade EXT
2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2006 GMC Sierra, Yukon, Yukon XL, Yukon Denali
All with Seat FRT, Individual (Non BKT) (RPO AN3)
2006 HUMMER H2 with Seat, Front Bucket Deluxe (RPO AR9)



This PI is being updated to advise the calibration are now available in Tis2 Web. Please discard PIT4028.


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some customers with early built 2006 model vehicles may experience the same condition as listed in bulletin 05-08-50-008, Intermittent Heated Seats Inoperative/DTC B3941

Recommendation/Instructions:

To correct this concern reprogram the DSM (Driver Seat Module) with updated calibrations currently available in Tis2Web

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.