The 1986 Buick Estate has 3 NHTSA recall campaigns affecting an estimated 1,955,325 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 3 complaints with NHTSA, most often about the service brakes, hydraulic. Last updated July 5, 2026.
A SMALL NYLON BUSHING IN THE CRUISE CONTROL SERVO BAIL MAY SLIP OUT OF PLACE, CAUSING INTERMITTENT AND UNEXPECTED INCREASES IN ENGINE SPEED OR DIESELING (ENGINE RUN ON WITH IGNITION OFF).
SERVO ROD ASSEMBLY COULD CATCH ON ENGINE COMPONENTS ANDRESULT IN A STUCK THROTTLE WITH POTENTIAL FOR A VEHICLE CRASH.
INSTALL A NEW BUSHING IN CRUISE CONTROL SERVO BAIL.
THE PUSH PULL HEADLIGHT SWITCH MAY HAVE ELECTRICAL CONTACTS WHICH ALLOW AN INTERMITTENT HEADLIGHT CIRCUIT CAUSING HEADLIGHT TO FLICKER OR SUDDENLY GO OUT. CONSEQUENCE OF…
REPLACE HEADLIGHT SWITCH AS NECESSARY.
THE PUSH-PULL HEADLIGHT SWITCH MAY HAVE ELECTRICAL CONTACTS WHICH ALLOW AN INTERMITTENT HEADLIGHT CIRCUIT CAUSING HEADLIGHT TO FLICKER OR SUDDENLY GO OUT. CONSEQUENCE OF…
REPLACE HEADLIGHT SWITCH AS NECESSARY.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Currently own 1986 buick estate equipped with "power master" brake unit. This is the original factory brake unit for this automobile. The pressure switch developed a crack, allowing the brake fluid to be pumped out. My father was driving the vehicle at the time, and managed to get the car stopped…”
“Understand gm had problems with this powermaster brakes”
“Consumer states while depressing the brakes to make a stop the vehicle contacted to travel. Please provide further information. *ak”
There is no summary currently available
SUBJECT VEHICLES:CAPRICE, CAPRICE CLASSIC, CUSTOM CRUISER, DEVILLE,ELECTRA, ESTATE WAGON, FLEETWOOD, LESABRE, NINETY-EIGHT, PARISIENNE,PARK AVENUE.(ALL 1984-86 GM VEHICLES EQUIPPED WITH HYDROBOOST II SYSTEMS)ANALYSIS:CONSUMER COMPLAINTS ALLEGE SEVERAL PROBLEMS INVOLVING THE POWERSTEERING AND POWER BRAKE SYSTEMS OF…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1986 Buick Estate as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.