INTERIOR LIGHTS MAY FLICKER (SLIDING DOOR JAMB SWITCH)

Model and Year: 1990 U-VANS (APV)

The interior lights may flicker when hitting bumps and then gradually stay on all the time, with all the doors closed, on the 1990 U van.

If the sliding door jamb switch is adjusted, the lights may work properly for a short period of time, but the condition will re-occur after the sliding door has been closed several times.

The sliding door jamb switch cannot hold proper adjustment when the sliding door is closed. The internal mechanism of the switch is not strong enough.

A new stronger switch, part number 10170226, has been released, which will hold the correct adjustment when the door is closed.

This new switch is used in production after the following VIN:

LT1 12875

Part is expected to be available on April 2, 1990. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while the 400 control is in place.

Correction:

1. Disconnect negative battery cable.

2. Replace the sliding door jamb switch with the new part, following normal service manual procedures (Section 10-11).

3. Reconnect negative battery cable.

Warranty Information:

Labor Operation No: N2186

Labor Time: .2 hrs.

Trouble Code: 03

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.