GM Service Manual Online
For 1990-2009 cars only

Left Outside Rearview Mirror Glass Shake or Flutter (Relearn Power Mirrors and Replace Left Mirror, If Necessary)

Subject:Left Outside Rearview Mirror Glass Shake or Flutter (Relearn Power Mirrors and Replace Left Mirror, If Necessary)

Models:2007 Cadillac Escalade, Escalade ESV, Escalade EXT
2007 Chevrolet Avalanche, Silverado (New Style), Suburban, Tahoe
2007 GMC Denali Models, Sierra (New Style), Yukon, Yukon XL
with Power Folding Mirrors (RPO DL3)



This bulletin is being revised to update the warranty information. Please discard Corporate Bulletin Number 06-08-64-027D (Section 08 - Body and Accessories).


Condition

Some customers may comment that the left outside rearview mirror glass shakes or flutters at normal driving speeds.

Cause

    • The mirror may have been accidentally pushed in manually or obstructed while folding.
    • The mirror actuator screws may be loose, allowing the mirror to move.
    • The metal spring (driver's side) left mirror may not have enough tension to hold the mirror from moving.

Correction

Follow the procedure below to correct this condition.

  1. The power folding mirrors should be cycled three complete times to relearn the mirror positions. Then perform a road test and check the mirror glass for stability. If stability is not fixed, proceed to Step 2.
  2. Remove the mirror glass. Refer to Mirror Face Replacement in SI.
  3. Check the torque on the four retaining screws on the actuator.
  4. Tighten
    Tighten the screws to 1.13-1.6 N·m (10-14 lb in).

  5. Bend the metal spring (driver's side mirror) up to increase the tension engagement to the mirror housing 13 mm (1/2 in).
  6. Install the glass assembly by pressing firmly, taking care not to allow the spring finger to unseat from its intended track in the mirror housing. Road test the vehicle. If stability is not improved, replace the left mirror assembly. Refer to Power Mirror Replacement in SI.

Parts Information

Part Number

Description

Body Style

25831035

Mirror, O/S RR View (Paint to Match)-LH

Pickup

25831053

Mirror, O/S RR View (Mold in Black)-LH

Pickup

25831064

Mirror, O/S RR View (Platinum Chrome)-LH

Utility

25831065

Mirror, O/S RR View (Bright Chrome)-LH

Utility

25831078

Mirror, O/S RR View (Paint to Match)-LH

Utility Or Pickup

(Cadillac Only)

25831194

Mirror, O/S RR View (Mold in Black)-LH

Utility

25831236

Mirror, O/S RR View (Paint to Match)-LH

Utility

Warranty Information

Important: Only one Labor Operation should be claimed depending on the actual repair.

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

B9798*

Relearn Power Folding Mirrors and Road Test

0.3 hr

B4151

Glass, Outside Rear View Mirror-Left - Replace

(Include Time for Checking Torque, Reposition Spring and Road Test)

Use Published Labor Operation Time

B4156

Mirror, Outside Rear View-Left - Replace

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