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FYI

Subject:Left or Right Outside Rearview Mirror Glass Shake/Flutter (Relearn Power Mirrors) #06-08-64-027C - (06/12/2007)

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


This bulletin is being revised to include the Silverado/Sierra (New Style) models. Please discard Corporate Bulletin Number 06-08-64-027B (Section 08 - Body and Accessories).
Condition

Some customers may comment that the left or right 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 mirror) may not have enough tension to hold the mirror from moving.​
Correction

Follow the procedure below to correct this condition.
  1. <LI type=1>The power folding mirrors should be cycled three times to relearn position. Then perform a road test and check the mirror glass for stability. If stability is not fixed, proceed to Step 2. <LI type=1>Remove the mirror glass. Refer to Mirror Face Replacement in SI. <LI type=1>Check the torque on the four retaining screws on the actuator. Tighten
    Tighten the screws to 1.13-1.6 N·m (10-14 lb in).
    <LI type=1>Bend the metal spring (driver's side mirror) up to increase tension engagement to the mirror housing 13 mm (1/2 in).
  2. 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 mirror assembly. Refer to Power Mirror Replacement in SI.
Warranty Information

For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
B4150
Glass, Outside Rear View Mirror-Right - Replace
Use Published Labor Operation Time
B4151
Glass, Outside Rear View Mirror-Left - Replace
Add:
For Checking Torque and Repositioning Spring and Road Test
0.3 hr
*B9798
Relearn Power Folding Mirrors and Road Test
B4156
Mirror, Outside Rear View-Left - Replace
Use Published Labor Operation Time
B4155
Mirror, Outside Rear View-Right - Replace
A1240
Mirror, Outside Rear View - Color/Clear Coat - Right
A1241
Mirror, Outside Rear View - Color/Clear Coat - Left
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.
 
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