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Engine coolingPart report

1989 Pontiac Bonneville Engine cooling Problems

Complaints
1about this part
Share
4%of 28 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 1989 Pontiac Bonneville, 4% of the 28 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Engine cooling: other model years

YearComplaintsShare of year
200514%
200427%
2003611%
20021011%
20012217%
20003717%
19995941%
199819470%
19975034%
19964329%
19955523%
19941416%
19932014%
199298%
1991314%
199013%
198914%
1987316%

Other parts of the 1989 Pontiac Bonneville

Brakes
9 complaints
Electrical system
4 complaints
Seat belts
4 complaints
Body and structure
3 complaints
Suspension
3 complaints
Latches, locks and linkages
2 complaints
Vehicle speed control
2 complaints
Engine
1 complaints
Exterior lighting
1 complaints
Seats
1 complaints
Steering
1 complaints
Tires
1 complaints

← All problems reported for the 1989 Pontiac Bonneville

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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