2005 Buick Rainier Engine cooling Problems
- Complaints
- 5about this part
- Share
- 5%of 103 total for the year
- Median mileage
- 42,400miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine cooling of the 2005 Buick Rainier, 5% of the 103 complaints for this model year. Where a mileage was given, the median is 42,400 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #10314978, filed 2010-02, 42,400 miles“(1) complete brake job w/rotors and drums replaced, I was told I had been driving with the emergency brake on though I never had used the emergency brake..fixed under warranty. (2) hatch back door pistons?? That holds up the hatchback failed..fixed under warranty. (3) fan clutch failed...fixed under warranty. (4) paint chipping/peeling; radio buttons chipping/peeling. (5) AC/heater gets stuck on hot air blowing out when switching to AC sometimes. (6) passenger side feels like tire or front end is wobbly??...dealership couldn't find anything. …”
NHTSA complaint #10311614, filed 2010-02, 30,000 miles“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.”
NHTSA complaint #10446371, filed 2012-02, 68,500 miles“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).”
NHTSA complaint #10251795, filed 2008-12, 39,850 miles“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.”
NHTSA complaint #10345623, filed 2010-07, 68,000 milesRelated service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10239101Jun 30, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
Engine cooling: other model years
Other parts of the 2005 Buick Rainier
38 complaintsFuel system
27 complaintsExterior lighting
15 complaintsBrakes
9 complaintsAir bags
7 complaintsSuspension
7 complaintsVehicle speed control
7 complaintsElectronic stability control
5 complaintsEngine
5 complaintsOther or unknown
5 complaintsSteering
5 complaintsBody and structure
5 complaints
← All problems reported for the 2005 Buick Rainier
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology