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Engine coolingPart report

2005 Buick Terraza Engine cooling Problems

Complaints
4about this part
Share
3%of 120 total for the year
Median mileage
18,084miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine cooling of the 2005 Buick Terraza, 3% of the 120 complaints for this model year. Where a mileage was given, the median is 18,084 miles.

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.

“Dt: the consumer was driving 65 MPH on the interstate when the car shut down. No lights came on to warn her. The speedometer and the tachometer went to 0 and the car went dead. She had the car less than 7 days and this was the first time this happened. The dealer did not know what was wrong. They were putting a new engine in the car due to an oil leak. They could not recreate the problem.”

NHTSA complaint #10127178, filed 2005-06, 292 miles

“- the contact complained about a variety of vehicle problems. Failures. The heating and cooling system did not consistently provide heat or air conditioning. The contact took the vehicle to the dealer 7 times for the heating and cooling system failure. However, she stated that she has had problems with system working on at least 15 occasions. The last time that the contact took the vehicle to the dealer for heating and cooling failure was december 27, 2006. The contact stated that each time she has taken the vehicle for repair it was reprogrammed. …”

NHTSA complaint #10177683, filed 2007-01, 35,875 miles

“2005 Buick Terraza without warning began to wobble making a grinding noise and rapidly slowed down to a stop. ***no answer required*** the dealer replaced numerous parts on the vehicle, but the problem continued.”

NHTSA complaint #10145387, filed 2005-12

“Dt: the contact stated while driving all of the lights dimmed. The fan motor lost power. This happened eight times on a ten mile drive. The vehicle has been to the dealership , and they replaced multiple components, but the problem got worse. The engineers for the manufacturer sent the service department 40 tests to run on the vehicle to diagnose the problem, but nothing was found. The zone manager for the manufacturer stated they were aware of the problem, but did not deem it a safety hazard. …”

NHTSA complaint #10146351, filed 2005-12

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200624%
200543%

Other parts of the 2005 Buick Terraza

Electrical system
37 complaints
Electronic stability control
29 complaints
Brakes
19 complaints
Latches, locks and linkages
16 complaints
Steering
14 complaints
Body and structure
12 complaints
Suspension
12 complaints
Other or unknown
11 complaints
Transmission and drivetrain
7 complaints
Exterior lighting
5 complaints
Air bags
4 complaints
Engine
4 complaints

← All problems reported for the 2005 Buick Terraza

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