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Engine coolingPart report

2009 Lexus RX350 Engine cooling Problems

Complaints
3about this part
Share
3%of 97 total for the year
Median mileage
10,750miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 2009 Lexus RX350, 3% of the 97 complaints for this model year. Where a mileage was given, the median is 10,750 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.

“I was driving my 2009 Lexus rx 350 down a major surface street when my power brakes and steering went out. I attempted to drive again after moving to a side street, and my steering and brakes went out 2 more times, I then had my vehicle towed to my Lexus dealer. They could not identify the reason for the problem.”

NHTSA complaint #10371103, filed 2010-12, 21,000 miles

“When the SUV shifts from 1st to 2rd gear the engine revs up about 1000 rpms and hesitates 2-5 seconds before the shift takes place. I can't rely on power when needed because of this. It's not constant, about 30% of the time it occurs. The same thing happens when down shifting. The dealer, kendall Lexus of eugene oregon (rick strong-service manager) is aware of the problem and says toyota won't put out a new chip to fix the problem . Rick strong also said I told the salesman he should inform potential buyers about this problem before they purchase a vehicle . …”

NHTSA complaint #10373067, filed 2010-12, 500 miles

“Several times a week the engine idles fast on start up and lasts for about five minutes. It does not seem to be related to the weather and there seems to be no identifying factor with which it can be associated.”

NHTSA complaint #10310254, filed 2010-02

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201127%
201044%
200933%
200854%
2007127%

Other parts of the 2009 Lexus RX350

Steering
28 complaints
Body and structure
17 complaints
Engine
12 complaints
Other or unknown
8 complaints
Transmission and drivetrain
8 complaints
Air bags
7 complaints
Electrical system
7 complaints
Brakes
6 complaints
Vehicle speed control
6 complaints
Exterior lighting
4 complaints
Tires
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints

← All problems reported for the 2009 Lexus RX350

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