Power Folding Mirrors Will Not Fold Inward - keywords adjust driver information left operation outside passenger right
| Subject: | Power Folding Mirrors Will Not Fold Inward |
| Models: | 2003-2006 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2003-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2003-2006 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
| with RPO DL3 Power Folding Mirrors |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Owners may have a concern with the power folding mirrors not folding inward.
Recommendation/Instructions:
Due to possible mirror glass to mirror housing interference, the power folding mirrors will not fold inward unless the mirror glass is in an acceptable position. Each door module monitors its respective mirror to determine acceptable mirror glass position by its position sensor voltage. An acceptable mirror glass position is 2.8 volts or less for both horizontal and vertical positions. This voltage can be monitored using the Tech 2 under the respective door module, Data Display, Data, parameter "Mirror Horizontal Position" and "Mirror Vertical Position". If the mirror glass is not in an acceptable position when attempting to fold the mirrors inward, the respective door module will first command its mirror glass to move. Once the Horizontal and Vertical feedback voltages are 2.8 volts or less the mirror head will fold inward.
Note: BOTH drivers and passenger side mirror glass must be within the acceptable feedback voltage; if not NEITHER mirror head will fold inward.
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.
