S10/T10 P/U 4WD V6-173 2.8L (1986)
Technical Service Bulletin # 8728710
Date: 880501
Campaign - Power Door Lock Switch Replacement
Number:
87-287-10
Section:
10
Date:
May, 1988
Subject:
POWER DOOR LOCK SWITCHES
Model and Year: 1986-87 S/T TRUCKS WITH POWER
DOOR LOCK OPTION (AU3)
TO:
ALL CHEVROLET DEALERS
General Motors has determined that some power door lock failures have occurred on 1986-87 S/T model trucks. The failure modes include: inoperative
switches, intermittent locking and unlocking while driving or parked, actuator sticking and actuator popping out of switch. In addition to durability
improvement in the new switches, there is an appearance change which necessitates changing both the right and left door lock switches when one
requires replacement.
Vehicles Involved, Policy Adjustment, Owner Notification and Procedure Information
VEHICLES INVOLVED
Involved are certain 1986-87 S/T model trucks within the following VIN breakpoints:
YEAR
PLANT
FROM
THROUGH
1986
Pontiac
G0100001
G0171774
1987
Pontiac
H0100008
H0188556
1986
Moraine
G2100001
G2238717
1987
Moraine
H2100001
H2271470
1986
Shreveport
G8100001
G8212409
1987
Shreveport
H8100001
H8237837
SPECIAL POLICY ADJUSTMENT
Should this condition occur, General Motors will repair involved vehicles at no charge for a period of five (5) years, regardless of mileage, from the date
the vehicle was originally placed in service.
This "SPECIAL POLICY ADJUSTMENT BULLETIN" should be filed in the three ring binder previously furnished each dealer by General Motors.
OWNER NOTIFICATION
Owners of vehicles involved in this SPECIAL POLICY ADJUSTMENT will be notified by Chevrolet (see copy of owner letter included with this
bulletin).
PARTS INFORMATION
Parts are to be obtained from General Motors Service Parts Operations (GMSPO).
Part Number
Description
Quantity
15622301*
Left Power Door
1
Lock Switch
15622302*
Right Power Door
1
Lock Switch
*Appearance change necessitates changing both switches when one needs replacement.
SERVICE PROCEDURE - 1986-87 S/T DOOR LOCK SWITCHES-REPLACE
1.
Disconnect battery ground cable from battery.
