Vehicles Affected: Approximately 10,000 model-year 2006-07 Buick Rainier, Chevrolet Trailblazer and Trailblazer EXT, and GMC Envoy and Envoy XL SUVs
The Problem: Fluid may enter into the driver’s door master power window switch module, resulting in corrosion that could result in a short in the circuit board, causing window switches to become inoperative. The affected vehicles previously may have had the module treated with a protective coating instead of having it replaced; this coating may not eliminate the risk that the circuit board could short and result in a fire, even when the vehicle is unattended. GM said the affected vehicles were mistakenly excluded from a previous recall because dealers had reported that the vehicles had been repaired; the automaker said it has since determined that the repairs included only the protective coating and not replacement of the module.
The Fix: Dealers will install a new driver-door switch module for free.
What Owners Should Do: GM has not yet provided an owner-notification schedule. Owners can call Buick at 800-521-7300, Chevrolet at 800-222-1020 and GMC at 800-462-8782 for more info. Owners can also call the National Highway Traffic Safety Administration’s vehicle-safety hotline at 888-327-4236 or go to www.safercar.gov.
Need to Find a Dealer for Service? Go to Cars.com Service & Repair to find your local dealer.
Former Assistant Managing Editor-News Matt Schmitz is a veteran Chicago journalist indulging his curiosity for all things auto while helping to inform car shoppers.