K 1500 Truck 4WD V8-305 5.0L (1985)
you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle. Owners of vehicles
recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required modification according to
instructions contained in this bulletin. If no owner's name and address were available to GMC Truck at the time of campaign initiation, the dealer will
determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next
to the applicable VIN, so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be
submitted to the address listed below in the previously supplied yellow campaign envelopes.
GMC Truck General Motors Corporation 101 Union Street Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners wiU be notified of this campaign on their vehicles by GMC Truck (see copy of Owner Letter included with this bulletin). A listing of owner
names and addresses has been furnished to the involved dealers to enable dealers to follow up with owners involved in this campaign. This listing may
contain owner names and addresses obtained from state motor vehicle registration records. The use of such motor vehide registration data for any other
purpose is a violation of law in several states. According, you are urged to limit the use of this listing to this campaign.
Service Procedure
During servicing, each suspect push-pull headlight switch must be inspected.. If the switch is not within the range of suspect date codes, it need not be
replaced. See the Inspection Procedure for the inspection method and range of suspect date codes. Disassembly and assembly procedures can be found in
the following applicable Truck Service Manuals:
1985 S/T15
X-8529
Section 8B-16
1985 P25-35
X-8532
Section 8B-16
1986 C/K & G
X-8632
Section 8B-24
1986 Medium Duty
X-8433
Section 8C-4
1986 Heavy Duty
X-8534
Section 8C-5
Figure 1
INSPECTION PROCEDURE After removal of the Headlight Switch from the Instrument Panel, refer to the illustration to locate and identify the date
code. The four-digit date code will appear the same on any switch regardless of the model usage or part number.
If the date code is 0015 or between the range 9235 through 9305, replace the switch using the correct part number per the Parts Information section.
(This represents switch manufacturing dates of September 23, 1985 through and including October 1, 1985. If the switch is not within the suspect date
codes, reconnect the existing switch. Reassemble the Headlight Switch per the applicable Service Manual instructions.
PARTS INFORMATION
Parts are to be obtained from the Warehousing & Distribution Division of General Motors (WDDGM). To ensure that these parts will be obtained as
soon as possible, they should be ordered from WDDGM on a C.I.O. order with no special instruction code, but order under an advise code (2).
Part
Model
Number Description
Quantity
S/T15
1995217
Headlight Switch
1
C/K15-25-35
1995216
Headlight Switch
1
G-Van
1995216
Headlight Switch
1
P25-35
1995216
Headlight Switch
1
C5-6-7, B6, P6,
1995194
Headlight Switch
1
J8-9, D9
WARRANTY INFORMATION Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed under this campaign.
Labor
*Time