There are 5 owner-reported powertrain & transmission complaints for the 2000 Buick Regalin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TRANSMISSION AFTER WARM UP BECOMES ROUGH WHILE SHIFTING THROUGH GEARS. WHINNING SOUND OCCURS AND SHIFTING THROUGH GEARS IS ROUGH. CAN TEMPORARY CORRECT THE CONDITION BY SIMPLY SHUTTING DOWN ENGINE AND RESTARTING, BUT THIS CAN BE DANGEROUS ON HIGHWAYS....THIS CONDITION STARTED AT 30,000 MILES....BUT AFTER THE 3 YEAR CAR WARRANTY EXPIRED. *AK
WHILE DRIVING VEHICLE WAS NOT SHIFTING GEARS PROPERLY. ALSO, OVERDRIVE GEAR WAS INOPERATIVE. CONTACTED DEALER. *AK
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK
TRANSMISSION "CLUNKS" WHEN SHIFTED FROM PARK TO REVERSE. HARD SHIFTS FELT THROUGH STEERING COLUMN. ENTIRE VEHICLE SHUDDERS AT 70 MPH AND LESS, FEELS AS IF CAR LURCHING FORWARD/BACK. FELT THROUGH STEERING WHEEL, SEATS, GEARSHIFT. DEALER HAS NOT BEEN ABLE TO REPAIR.*AK
CONSUMER STATES THAT THE BOLTS WERE STRIPPED FROM THE MANUFACTURER. THIS CAUSED BOLT TO FLY INTO A GASKET AND SPLIT. AS A RESULT, TRANSMISSION FLUID WAS SPRAYED ALL OVER TRANSMISSION. *AK
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026