CTS RWD V6-3.6L (2008)
Warranty Information
For vehicles under warranty, use the table.
Disclaimer
Technical Service Bulletin # 09-08-64-009B
Date: 091120
Body - Front Window(s) Lower Incrementally Without Input
TECHNICAL
Bulletin No.: 09-08-64-009B
Date: November 20, 2009
Subject: Front Door Window Drops/Lowers In Several Small Increments/Steps Without Window Switch Activation (Install Revised Power Window
Regulator)
Models:
2008-2009 Cadillac CTS, CTS-V
Built Prior to February 9, 2009
Supercede:
This bulletin is being revised to inform the technician to also reference Corporate Bulletin Number 09-08-64-002 to assure proper diagnosis of this
condition. Please discard Corporate Bulletin Number 09-08-64-009A (Section 08 - Body and Accessories).
Condition
Some customers may comment that the left or right front door glass will drop down incrementally without the window switch being activated when the
vehicle is running or with the ignition key in the ON position. This should not be confused with a "false reversal" which is a downward travel of the
window that occurs when nearing the top of the window travel after an express up window switch activation (covered in Corporate Bulletin Number
09-08-64-002). Technicians should also reference Corporate Bulletin Number 09-08-64-002 to assure proper diagnosis of this condition.
Cause
Investigation has determined that the electronics located within the power window regulator can become unstable under certain conditions. This may
allow the module to recognize unintended data as window commands.
Correction
