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Engine coolingPart report

2003 GMC Suburban Engine cooling Problems

Complaints
1about this part
Share
20%of 5 total for the year
Median mileage
30,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2003 GMC Suburban, 20% of the 5 complaints for this model year. Where a mileage was given, the median is 30,000 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.

“The contact owns a 2003 Gmc Suburban. The contact stated that he purchased his vehicle brand new and has currently spent over $5,000 in repairs. He has been to the dealer four different times concerning the steering wheel vibrating, shaking, and rocking while driving the vehicle. Each time he went to the dealer for the steering failure, they always found another failure to report. The dealer stated that the motor injection system was burned out and caused the steering failure. …”

NHTSA complaint #10199419, filed 2007-08, 30,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2003120%
2000213%
1999238%
199855%
19972010%
199685%
199573%
199492%
199363%
199223%
199113%
1989212%
1988113%

Other parts of the 2003 GMC Suburban

Brakes
2 complaints
Equipment
1 complaints
Fuel system
1 complaints
Steering
1 complaints
Tires
1 complaints

← All problems reported for the 2003 GMC Suburban

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