Tonyrodz's Tahoe Build Thread

[Tonyrodz]

#03-08-64-010C: Outside Rearview Mirrors May Blow in at Highway Speeds or Power Folding Feature Appears Inoperative (Synchronize Mirrors) - (Jun 18, 2007)
Subject: Outside Rearview Mirrors May Blow In At Highway Speeds or Power Folding Feature Appears Inoperative (Synchronize Mirrors)

Models: 2002–2006 Cadillac Escalade, Escalade EXT
2003–2006 Cadillac Escalade ESV
2003–2006 Chevrolet Avalanche, Suburban, Tahoe
2003–2007 Chevrolet Silverado (Classic)
2003–2006 GMC Yukon, Yukon XL
2003–2007 GMC Sierra (Classic)
2003–2006 HUMMER H2
This bulletin is being revised to add the 2007 Classic Pickup models. Please discard Corporate Bulletin Number 03-08-64-010B (Section 08 – Body and Accessories).

Condition
Some customers may comment that the power fold feature of the mirrors either does not operate properly or that the mirrors may blow back toward the closed position at highway speeds.

Cause
Manually folding the mirror may cause the mirror and the motor to become out of sync.

The power mirror drive has detents in the drive hub that lock the mirror to the drive system. This system is designed to let the drive hub disconnect without damage through manual input to the mirror. This mechanism allows the mirrors to be folded by power but still have the break-a-way feature if contacted accidentally.

Correction
There are no replacement parts necessary to correct this condition. The mirrors will self-synchronize by following the procedure below. Once synchronized, the mirrors will function properly unless folded manually.

Important: Prior to replacing a mirror, attempt to electrically fold and unfold the mirrors a minimum of 3 cycles.

1. Set the power mirror selector switch to the center position. You will see the mirror directional control switch illuminate the power folding symbol.
2. Press the right or left side of the directional control to fold or unfold the mirrors.
3. Cycle the mirrors open and closed 3 times. The mirrors should now operate normally.

Please advise the customer of the above procedure for future reference or provide them with a copy of this bulletin.

I'm gonna mess with them again this weekend. Thx for the info, really appreciate it. And to everyone else, who contributed, thank you

 

[915_Tahoe]

but mainly me though right, lmfao.

 

[Tonyrodz]

but mainly me though right, lmfao.

Yes sir, you know it lol--but question: If they won't fold at all with the switch, how can I fold and unfold them 3 times?

 

[Sam Harris]

Yes sir, you know it lol--but question: If they won't fold at all with the switch, how can I fold and unfold them 3 times?

No motor running at all I guess? Maybe just try the switch to fold / unfold 3x..?

 

[Tonyrodz]

No motor running at all I guess? Maybe just try the switch to fold / unfold 3x..?

I actually did do that, more then 3 times, but I'm gonna try again this weekend. Hopefully they'll cooperate this time.

 

[Sam Harris]

I actually did do that, more then 3 times, but I'm gonna try again this weekend. Hopefully they'll cooperate this time.

I’d assume it’s a 12v motor. Maybe find the leads for + / - and see if they function. Course, if they aren’t 12v, you don’t wanna fry em. [emoji53]

 

[ArcticYukon]

I’d assume it’s a 12v motor. Maybe find the leads for + / - and see if they function. Course, if they aren’t 12v, you don’t wanna fry em. [emoji53]

Yeah, that's a good idea. Motors might be bad, Tony. You could also try seeing if it's a wiring issue by probing for 12v signal at the plug that the mirrors plug into to see if the system is sending signal to the folding motors when the button(s) are pressed.

 

[Sam Harris]

Yeah, that's a good idea. Motors might be bad, Tony. You could also try seeing if it's a wiring issue by probing for 12v signal at the plug that the mirrors plug into to see if the system is sending signal to the folding motors when the button(s) are pressed.

Good plan. I think there was some pretty detailed testing in 915_Tahoe’s responses.

 

[915_Tahoe]

post #1406 has the circuit testing procedure.

 

[Tonyrodz]

I'll try to check that Saturday. I really hope they'll work.