There are 5 owner-reported engine complaints for the 2005 Buick Rainierin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2005 BUICK RAINIER. WHILE DRIVING AT APPROXIMATELY 20 MPH, THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS NOT ABLE TO RESTART. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN AND FAILURE MILEAGE WERE UNKNOWN.
FUEL SYSTEM SENSOR WAS THE FIRST TO MALFUNCTION. THEN THE OIL GAUGE IS MALFUNCTIONING AND NOW AIR SUSPENSION AND OTHER SYSTEMS ARE STARTING TO NOT WORK PROPERLY. *KB
TL* THE CONTACT OWNS A 2005 BUICK RAINIER. THE CONTACT STATED THE CHECK ENGINE WARNING LIGHT REMAINED ILLUMINATED ON THE CONSOLE. THE DEALER ADVISED THAT THE ENGINE HEADS HAD FAILED AND WOULD NEED TO BE REPLACED. THE CONTACT STATED HE WAS UNABLE TO PASS EMISSIONS DUE TO THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 68,000 AND THE CURRENT MILEAGE 70,000.
I WAS THIRD IN LINE WAITING TO PULL OUT OF A PARKING LOT IN PEORIA, AZ IN MY 2005 BUICK RAINIER. MY FOOT WAS RESTING ON THE BRAKE PEDAL. ALL OF THE SUDDEN THE CAR REVVED UP AND SURGED FORWARD (FROM A STANDING START) WITH ENOUGH FORCE TO CRASH INTO THE CAR IN FRONT OF ME AND PUSHING THAT CAR IN TO THE ONE IN FRONT OF IT--ALL THREE CARS WERE SEVERELY DAMAGED. *TR
DESIGN FAULT - AIR PUMP IS MOUNTED LOW ON THE FRAME OF 2005 BUICK RAINIER. ON 10/30/07 IT FAILED AND HAD TO BE REPLACED. MILEAGE AT THAT TIME WAS 30,947. PUMP FAILED AGAIN BECAUSE OF WATER INTRUSION. SINCE IT IS MOUNTED LOW WITHOUT ANY SHIELD I WOULD EXPECT RAIN WATER TO SPLASH UP AS YOU DRIVE. PUMP WAS REPLACED A SECOND TIME ON 12/12/08, MILEAGE WAS 39,994. THE SECOND PUMP ONLY LASTED 9,000 MILES AND GM REFUSES TO PAY FOR REPLACEMENT ( THE WARRANTY IS FOR 12,000 MILES OR 12 MONTHS, YOUR PART IS 13 MONTHS OLD). *TR
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