GM Service Manual Online
For 1990-2009 cars only

Power Folding Outside Rearview (OSRV) Mirror Whistle Noise (Add Foam)

Subject:Power Folding Outside Rearview (OSRV) Mirror Whistle Noise (Add Foam)

Models:2007 Cadillac Escalade
2007 Chevrolet Tahoe
2007 GMC Yukon
with Power Folding Mirror (RPO DL3)



Condition

Some customers may comment on a whistle noise coming from the driver's outside rearview mirror. When the mirror is folded in to the closed position, the whistle noise will not be heard.

Cause

Figure 1


Object Number: 1780211  Size: SH

The whistle noise may be caused by the mirror's pivot horizontal cutline gap allowing air into the mirror assembly. Refer to figure 1.

Correction

DO NOT REPLACE THE MIRROR ASSEMBLY.

Use the following procedure to add foam to the inside of the mirror assembly, which will reduce the gap at the mirror's pivot point.

  1. Follow the procedure listed in SI to remove the OSRV mirror assembly from the door.
  2. Place the mirror on a clean work surface in order to prevent any damage or scratches to the assembly.
  3. Figure 2


    Object Number: 1780214  Size: SH
  4. Pull back the foam gasket material from the base of the mirror. There is no need to completely remove the gasket. Refer to figure 2.
  5. Figure 3


    Object Number: 1780213  Size: SH

    Important:  For durability purposes, it is important to use the foam specified in this bulletin.

  6. Refer to figure 3. Leave the adhesive tape on the foam. Using a ruler or flat-bladed tool, insert a (minimum 1" x 1") piece of foam 70 mm (2.7 in) (2) inboard from the inside edge (1) into the mirror housing between the aluminum casting and the plastic sail housing.

Parts Information

This foam is sold in 50' rolls. This roll will service 45 vehicles. Please return the unused portion to parts inventory for future use.

Part Number

Description

Material Allowance

P46510

Adhesive-Backed Shim Stock

$1.28 (U.S.)

$1.88 (Canadian)

Kent Products can be purchased by calling 1-800-654-6333 (in Canada, 1-800-563-1717).

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

B9782

OSRV Mirror Modification

0.5 hr

This labor operation is for bulletin use only and will not be published in the Labor Time Guide.