LEFT WINDOW EXPRESS DWN SWITCH (OPERATION INFORMATION)

SUBJECT: INFORMATION ON "U" VANS WITH LEFT HAND WINDOW EXPRESS DOWN SWITCH OPERATION

(Revised to include Part Number for Chevrolet)

VEHICLES AFFECTED: 1990-92 "U" VANS

This is an informational bulletin to familiarize technicians with the functional differences of left hand window switches used on the 1990-91 U Van as compared to those used on 1992 U Van models.

It is important that technicians (and owners) understand how the different switches function, especially since 1990-91 switches are serviced with the 1992 switch. AFTER A SWITCH REPLACEMENT, THE NEW FUNCTION SHOULD BE EXPLAINED TO ANY OWNER OF A 1990-1991 U-VAN.

1990-91 Models: P/N 10149407 replaced by P/N 14098919 For Pontiac models.

1990-91 Models: P/N 10149405 replaed by P/N 14098917 for Chevrolet models.

When the rear of the rocker switch is partially depressed, an audible click can be heard and the switch will remain depressed while the window expresses down. The switch will pop up when the express down cycle is complete. Express down may be cancelled while the window is in motion by depressing the front of the rocker switch.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.