Some electric door lock switches may become separated while installed in the vehicle. This condition may be reported on either the right or left or both doors. A clip has been released to correct this condition.
The subject trucks use switch P/N 20043224. To update existing switches, use clip P/N 16602550. Future production of this switch will include installation of the clips by the supplier.
To install clips:
1. Remove switch assembly as described in section 8A of the Service Manual.
2. If switch has become separated, inspect for damage, if no damage is found reassemble switch and add two clips as indicated in Figure No. 1.
3. If switch is separated and damaged, replace complete switch assembly and add clips as indicated in Figure No. 1.
Use applicable Labor Operation Number and Time.
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.