Left or Right Outside Rearview Mirror Glass Shake/Flutter (Relearn Power Mirrors)
| Subject: | Left Or Right Outside Rearview Mirror Glass Shake/Flutter (Relearn Power Mirrors) |
| 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.
- 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.
- Remove the mirror glass. Refer to Mirror Face Replacement in SI.
- Check the torque on the four retaining screws on the actuator.
- Bend the metal spring (driver's side mirror) up to increase tension engagement to the mirror housing 13 mm (1/2 in).
- 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.
Tighten
Tighten the screws to 1.13-1.6 N·m (10-14 lb in).
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. | ||
