There is a tech bulletin on the retracting mirrors. It may not be the problem, but on the earlier shipments of H2's the transport companies did not know the mirrors were to be electronically un-retracted and they were pulling them away from the window to unfold them.
Although the tech bulletin says they can perform the reset sequence to get the gear motor and sensors back in-sync and have the mirrors lock properly, could there be a larger issue resulting when you force the stepper motor and possibly damaging the mechanism?.
Hope it helps.
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Info - Cycling Power Folding Exterior Mirror to Remain in Locked Position After Transport
Document ID # 1181384
2003 HUMMER H2
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Info - Cycling Power Folding Exterior Mirror to Remain in Locked Position After Transport #02-08-64-022
Cycling Power Folding Exterior Mirror to Remain in Locked Position After Transport
2003 Cadillac Escalade, Escalade EXT
2003 Chevrolet Avalanche, Silverado, Suburban
2003 GMC Denali, Denali XL, Sierra, Yukon, Yukon XL
with Power Folding Exterior Mirror (RPO DL3)
2003 HUMMER H2 -- with Power Folding Exterior Mirror (RPO DL7)
Dealers should be aware that the power folding mirrors on the above vehicles may not be set in the full locked position due to movement during transport. It will be necessary for the dealer to cycle the power mirror switch on the driver's side door panel in order to fully implement the detent feature of these mirrors (the mirror housing must be fully retracted inboard and then extended to its outboard position to lock the mirror in place).
Some dealers and transport companies have manually placed these mirrors in the outward position, assuming they were fixed in place. If this is done, the mirrors could fold inward when the vehicle is at highway speeds. DO NOT replace these mirrors. You need only to cycle the power mirrors in and out by using the power mirror switch.
[This message was edited by H2Norcal on December 23, 2002 at 10:40 AM.]
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