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Engine coolingPart report

2005 Hyundai XG350 Engine cooling Problems

Complaints
6about this part
Share
4%of 144 total for the year
Median mileage
2,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 2005 Hyundai XG350, 4% of the 144 complaints for this model year. Where a mileage was given, the median is 2,500 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.

“Initially (2) times there was no response from engine when gas pedal depressed, we have had 3-4 incidents of when stopped at intersection, or driving slowly in parking lot engine surges and breaks had to be applied severely to prevent car from hitting other cars, the last incident was the transmission would not shift from 1st gear and car would not go faster than 20 MPH. All of these are safety issues.”

NHTSA complaint #10152782, filed 2006-03, 2,431 miles

“Throttle becomes sporadic and unstable. Problem occurs once car has reached operating temperature and is restarted. This is a safety issue due to vehicle surging forward or not responding. Manufacturer has not resolved this issue even after several attempts.”

NHTSA complaint #10160101, filed 2006-06, 7,114 miles

“Seven instances of unwanted engine acceleration since jan 2006. All occurrences similar: 1)engine is warm after a period of driving; 2) car decelerating approaching stop sign, traffic light, or in stop-and-go traffic; 3) a barely audible click is heard and the engine RPM begins to rev up making braking difficult and giving a clue that something is amiss. When this point is reached key was turned off or idle selected to see how high the RPM would rev; 4800 is the highest noted. This is a random event as the car has over 10000 miles with 7 occurrences. Latest date is noted below.”

NHTSA complaint #10162197, filed 2006-07, 2,500 miles

“Seven instances of unwanted engine acceleration since jan 2006. All occurrences similar: 1)engine is warm after a period of driving; 2) car decelerating approaching stop sign, traffic light, or in stop-and-go traffic; 3) a barely audible click is heard and the engine RPM begins to rev up making braking difficult and giving a clue that something is amiss. When this point is reached key was turned off or idle selected to see how high the RPM would rev; 4800 is the highest noted. This is a random event as the car has over 10000 miles with 7 occurrences. Latest date is noted below.”

NHTSA complaint #10162199, filed 2006-07, 2,500 miles

“Car driven for 6 miles. Engine shut off for 1 hour. Restarted car and shifted to dive. Car moved forward without problem. Traveled 3/4 mile and stopped at traffic light behind some cars. Had right foot on brake pedal, car started to move forward, pressed pedal harder but car continued to move forward. Noticed rpms at 4000 without gas pedal being touched. Shifted to neutral, depressed and released gas pedal. Rpms at 3500 and dropped to 1000, rpms jump to 3000 and back to 1000, rpms jump to 2500 and back to 1000, rpms jump to 2000 and back to 1000, rpms jump to 1500 and back to 1000. …”

NHTSA complaint #10157159, filed 2006-05, 5,500 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200564%
200444%
200315%
2002813%

Other parts of the 2005 Hyundai XG350

Air bags
68 complaints
Vehicle speed control
40 complaints
Brakes
10 complaints
Transmission and drivetrain
9 complaints
Body and structure
8 complaints
Electrical system
7 complaints
Suspension
7 complaints
Fuel system
6 complaints
Other or unknown
4 complaints
Engine
3 complaints
Exterior lighting
3 complaints
Tires
3 complaints

← All problems reported for the 2005 Hyundai XG350

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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