| Subject: | Rear Door Locks/Rear Windows/Courtesy Lamps/Rear Speakers Inoperative, Blown Fuse, SIR DTC Codes (Inspect/Repair, Wrap Wire Harness) | 
| Models: | 2007-2009 Cadillac Escalade, Escalade ESV, Escalade EXT | 
| 2007-2009 Chevrolet Avalanche, Silverado (Crew Cab Only), Suburban, Tahoe | 
| 2007-2009 GMC Sierra (Crew Cab Only), Yukon, Yukon Denali, Yukon XL, Yukon Denali XL | 
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number 06-08-45-009 (Section 08 - Body and Accessories).
Some customers may comment on one or all of the following conditions:
| • | Rear door locks inoperative  | 
| • | Rear windows inoperative  | 
| • | Door courtesy lamps inoperative or stay on at times  | 
| • | Rear speakers inoperative  | 
| • | Any fuse (related to the rear doors) that is blown/shorted  | 
| • | SIR codes related to the pretensioner  | 
| • | Interior dimming inoperative  | 
The B-pillar wiring harness around the seat belt retractor may be or become chaffed/damaged. The correction listed below is intended to repair any damage and prevent future concerns.
Important: This repair operation is intended to be done on both B-pillars.
Part Number  | Description  | Qty  | 
|---|---|---|
08919355  | Conduit - (12.5 mm (0.5 in) diameter wire tubing)  | (2) 241 mm (9.5 in) pieces  | 
Important: The labor operation associated with this bulletin is written for inspection of the B-pillar wiring harness and, if necessary, repair.
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
N9562*  | Inspection of B-pillar wiring  | 0.6 hr  | 
Add  | Repair wiring  | 0.2 hr  | 
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.  | ||