Riviera V6-231 3.8L VIN C SFI (1989)
Door Locks: All Technical Service Bulletins
Locks - Insufficient Lubrication of Door Lock Cylinders
Bulletin 89-10-17
Date May '89
Ref. No. 89-136-10
Corp. Ref. No. 981501R
SUBJECT:
INSUFFICIENT LUBRICATION DOOR LOCK CYLINDERS
MODELS AFFECTED: ALL 1989 BUICKS
A number of door lock cylinders may have been assembled with insufficient lubrication. The condition has been corrected at the supplier.
Vehicles may be corrected by using GM lubricant, part number 12345120. If this lubricant is not available, synthetic SAE 5-W-30 engine oil may be
substituted.
Parts are currently available from GMSPO.