SB-PIT-5170

File in Section:
Bulletin No.:
Service Bulletin
Date:
PIT5170
October, 2012
PRELIMINARY INFORMATION
Subject:
Power Seat Moves In Short Bursts and/or Heated Seats Inop With NO DTC's
(Reprogram MSM/RHVSM/HVSMF)
Models:
2012 Buick Enclave
2012 Cadillac Escalade Models
2012 Chevrolet Avalanche, Silverado, Suburban, Tahoe, Traverse
2012 GMC Acadia, Sierra, Yukon Models
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Some customers may comment that the front and/or rear heated seats are inoperative and/or the driver's power seat
only moves in short bursts each time the seat switch is operated. There will be no DTC's set in the MSM (Memory
Seat Module), RHVSM (Rear Heated/Vented Seat Module), or HVSMF (Front Seat Heating Control Module). When
the heated seats are activated, there will be 3 clicks heard from the module.
Note: If the module has a DTC(s), this PI does not apply. Follow the appropriate SI diagnostics.
Recommendation/Instructions
Do NOT replace the MSM, RHVSM, or HVSMF. Using TIS2WEB, reprogram only the affected module (MSM,
RHVSM, HVSM) with updated calibrations. At the "Calibration Selection" screen in TIS2WEB, select the calibration
with the description of: "For use on vehicles with power rail failure PIT5170 only, suspect vehicles built from 1/2012
through 6/2012".
Note: Use the chart below to determine if this bulletin is applicable. Each manufacturing plant has a different
breakpoint. Vehicles built before or after the breakpoint are not applicable to the software update.
Buick Enclave / Chevrolet Traverse / GMC Acadia Built between:
5GAKVDED5CJ235619 - 5GAKVCED0CJ365575
Full Size Trucks/Utillites Built between:
Arlington 11th VIN R: 1GNSCJE01CR203808 - 1GNSCCE03CR328708
Flint 11th VIN F: 1GC1KYE83CF157129 - 1GC4K1C8XCF242833
Fort Wayne 11th VIN Z: 1GCRKTE74CZ197053 - 1GTR2WE75CZ355725
Silao 11th VIN G: 3GNTKGE79CG196114 - 3GTP2WE74CG312601
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
N9524
Seat Module Reprogramming with SPS
.4 hr
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.