THE AUTOMATIC TRANSMISSION SHIFT LEVER BUTTON MECHANISM MAY WEAR TO THE POINT THAT THE BUTTON ON THE SHIFT LEVER NO LONGER NEEDS TO BE DEPRESSED TO SHIFT GEARS.

Consequence & remedy

Consequence: A LEVER WITH THIS CONDITION COULD BE INADVERTENTLY BUMPEDOR MOVED FROM DRIVE TO REVERSE BY THE DRIVER OR A PASSENGER WHILE THE VEHICLEIS BEING DRIVEN. A SUDDEN UNEXPECTED SHIFTING COULD CAUSE LOSS OF VEHICLECONTROL AND A VEHICLE CRASH.

Remedy: A NEWLY DESIGNED TRANSMISSION SHIFT LEVER WILL BE INSTALLED ON ALL VEHICLES.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

PE88023 · Shifter Failure

Opened Feb 5, 1988 · Closed Apr 8, 1988

Status: closed (inferred from source dates) · Power Train

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EA85018 · Crankshaft Pulley Bolt

Opened Mar 13, 1985 · Closed Sep 4, 1987

Status: closed (inferred from source dates) · Engine And Engine Cooling

SUMMARY: GM ADMITS THERE HAS BEEN A PROBLEM AND HAS DESIGNED A MODIFICATIONKIT INTENDED TO PREVENT PULLEY BOLT FAILURES BY KEEPING THE PULLEY INPROPER ALIGNMENT WITH THE CRANKSHAFT AND THEREBY REDUCING THE BENDINGSTRESS ON THE BOLT. GM DOES NOT BELIEVE THE PROBLEM IS SAFETY RELATEDAND WILL CONDUCT A SERVICE CAMPAIGN.ANALYSIS:THE HIGHEST FAILURE RATES HAVE OCCURRED ON VEHICLES EQUIPPEDWITH AC AND PS WHICH USE A TRIPLE SHEAVE PULLEY. THE MODIFICATION KITSHOULD REDUCE THE FAILURE RATE ON THESE VEHICLES.STATUS: GM LAUNCHED A SERVICE CAMPAIGN IN FEBRUARY 1987 APPLICABLE TO185,000 T BODY VEHICLES EQUIPPED WITH TRIPLE PULLEYS. (PRODUCT CAMPAIGN84C27)EA CLOSED 9/4/87===