PIT5180

File in Section:
Bulletin No.:
Service Bulletin
Date:
PIT5180
September, 2012
PRELIMINARY INFORMATION
Subject:
Whistle Noise From Drivers Side A Pillar Area (Inspect VIN Plate Rivets)
Models:
2008-2013 Cadillac Escalade Models
2008-2013 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2008-2013 GMC Sierra, Yukon Models
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some owners may comment of a whistle noise coming from the driver’s side "A" pillar area when driving around 50
mph with the HVAC in recirculation mode. This whistle noise may be coming from one of the rivets securing the VIN
plate to the cowl (see picture below). It may be hard to pin point the source of the noise, but the use of a stethoscope
or the Ultrasonic Leak Detector (J-41416) may be helpful.
2910666
Recommendation/Instructions:
Reseal the rivet(s) using RTV sealer from the underside. The underside of the rivet can be accessed through
the cowl.
Warranty Information:
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
C0010
Plenum Panel Resealing
Use Published Labor
Operation Time
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.