Savana 3500 V8-4.8L (2009)
Heated Element: Technical Service Bulletins
Mirrors - Heated Mirrors, Defrosting Time
INFORMATION
Bulletin No.: 08-08-64-011A
Date: February 25, 2010
Subject: Information on Heated Electrochromatic Outside Rearview Mirror Performance
Models:
2010 and Prior GM Passenger Cars and Light Duty Trucks (including Saturn)
2009 and Prior HUMMER H2, H3
2009 and Prior Saab 9-7X
Supercede:
This bulletin is being revised to update the model years. Please discard Corporate Bulletin Number 08-08-64-011 (Section 08 - Body and Accessories).
Defrosting Time/Performance Concern
The electrochromatic (auto-dimming) outside rearview mirror used on the driver's side of many GM vehicles is slower to defrost than the passenger side
outside rearview mirror.
This is a normal condition. The glass on the driver's side electrochromatic mirror is twice as thick as the traditional glass on the passenger side mirror.
The heating elements for the mirrors on both sides draw the same wattage, therefore the driver's side mirror will take approximately twice as long to
defrost as the passenger mirror (approximately four minutes versus two minutes). Should a customer indicate that the driver's side heated mirror is not
functioning correctly, verify it's function based upon this information prior to replacing the mirror.
Disclaimer
