2011 Lexus RX350 Engine cooling Problems
- Complaints
- 2about this part
- Share
- 7%of 30 total for the year
- Median mileage
- 3,287miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2011 Lexus RX350, 7% of the 30 complaints for this model year. Where a mileage was given, the median is 3,287 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 have a 2011 Lexus gx 460. It lacks power when it is cold and there is exhaust fumes that are coming into the vehicle after I merge on t the highway it is almost a instant headache the smell is so strong its smells like sulfur there is no check engine light and gas mileage not normal . I have used high octane fuel and even installed bg44k fuel conditioner .this is a problem .thanks for listen to me .”
NHTSA complaint #10394031, filed 2011-04, 4,450 miles“I experienced a sudden unintended acceleration (sua) in the parking lot of my apartment on march 3rd, 2012. It was a sunny day, and the road condition was good. My wife was driving Lexus rx 350 2011 model (mileage: 2124miles). My daughter and I were sitting on the back seats. She was slowing down the vehicle for parking and about to finalize the parking by going forward by about 3 feet. At that time, the vehicle abruptly accelerated with the sound of revving up the engine. The car ran over a parking block and went on curb stones. …”
NHTSA complaint #10452366, filed 2012-03, 2,124 milesRelated service bulletins
- 10109592Aug 11, 2014Tech Tip: Starting with the 2010 Model Year, Lexus began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil…
- 10057003Jul 31, 2014Lexus: some of the vehicles are experiencing oil leaks from the engine coolers.
- 10056509Jul 13, 2014Lexus: see document search button for owner letter. There is a seepage or oil leakage on some vehicles, coming from the engine oil cooler pipe that is covered by the limited…
- 10132808May 12, 2014TSB: Some vehicles in particular geographic areas may exhibit a condition where the HVAC Evaporator Drain Hose has become obstructed with an insect nest. An insect repellent…
- 10133703Apr 3, 2014Some TMMC built 2010 ? 2014 model year RX 350 vehicles may exhibit one or more of the following conditions due to liquid fuel in the Evaporative Emissions system (EVAP system)…
- 10132147Oct 2, 2013Tech tip for MIL-I message only.
- 10132146Oct 2, 2013If a customer states there is an unpleasant odor in the vehicle from the HVAC system, there are various factors that may be involved.
- 10132189Sep 9, 2013Some 2010-2013 RX350 vehicles may exhibit an exhaust ?rattle? type noise from one or both of the two exhaust manifold heat shields pictured below
- 10061724Sep 9, 2013Summary to be provided on a future date.
Engine cooling: other model years
Other parts of the 2011 Lexus RX350
10 complaintsVehicle speed control
8 complaintsEngine
7 complaintsAir bags
6 complaintsTransmission and drivetrain
6 complaintsBody and structure
3 complaintsOther or unknown
2 complaintsElectrical system
1 complaintsEquipment
1 complaintsSteering
1 complaintsTires
1 complaintsWheels
1 complaints
← All problems reported for the 2011 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