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really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
24,125 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Lexus RX 350 engine problems

engine problem

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2009 Lexus RX 350 Owner Comments

problem #7

Jun 112016

RX 350

  • 56,000 miles


The contact owns a 2009 Lexus RX350. While depressing the brake pedal at 5 mph, the vehicle accelerated without warning, went over a curb, and down a 7-8 foot steep embankment and over a high curb at the top. As a result, the contact crashed the vehicle into a parked vehicle and then rolled backwards. The air bags failed to deploy. There were no injuries and a police report was not filed. The vehicle was taken to a dealer, but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 56,000. Updated 08/05/16 updated 08/15/16.

- Tarrytown, NY, USA

problem #6

Mar 012013

RX 350

  • 33,300 miles
The car lurches forward with great unintended acceleration.

- Mclean, VA, USA

problem #5

Aug 112010

RX 350

  • 32,000 miles
The contact owns a 2009 Lexus rx 350. The contact was driving at a low speed while driving into a parking space, when the vehicle suddenly accelerated and drove over the curb. She attempted to use the brakes which did not work at first to stop the vehicle. She then depressed the brake pedal with extreme force and shifted into park which stopped the vehicle before it could collide with a plate glass window. The vehicle previously had slight acceleration problems but when speaking to the dealer in January, the dealer stated that there was nothing wrong with it. The vehicle was towed to an authorized dealership where the vehicle was at the time of the complaint. The dealer stated that the manufacturer would send a representative out to inspect the vehicle. The current and failure mileages were approximately 32,000-bk

- Scotsdale, AZ, USA

problem #4

May 152010

RX 350

  • 29,000 miles


I was driving my 2009 Lexus rx 350 at about 25 miles per hour when it suddenly rapidly accelerated. Fortunately there was nothing/no car immediately in front of me. I pressed down on the brakes and the car responded by slowing down. I have reported the incident to Lexus and will have the dealer inspect the car as soon as possible. (they gave me an appointment in 2 days.)

- Weston, CT, USA

problem #3

Mar 242009

RX 350 6-cyl

  • 4,500 miles
The contact owns a 2009 Lexus RX350. While pulling into an off-street parking space at speeds of less than 5 mph, the vehicles engine began to surge and the vehicle then abnormally accelerated. The contact attempted to depress the brake pedal, however the brakes were non-responsive. The vehicle then crashed head on into a stone wall. The vehicle was able to be driven from the crash site. She then drove to her local dealer. The dealer did a short visual inspection and stated there was nothing wrong with the vehicle and that driver error was the cause of the crash. A diagnostic was not performed on the vehicle. Repairs to the vehicle were made. There were no additional failures following the repairs. She stated that following the repairs, the accelerator pedal felt higher and as if there were modifications done on the vehicle, however she could not prove what repairs were done. The failure mileage was 4,500 and the current was approximately 7,500. Updated 4/28/10 updated 07/01/10.

- North Borough, MA, USA

problem #2

Feb 012009

RX 350

  • 75 miles
The contact owns a 2009 Lexus Rx. The contact was driving approximately 15 mph on normal road conditions, proceeding to turn at an intersection. There was pressure applied to the accelerator pedal, followed by no power response. The vehicle resumed operation after two seconds of a delay. In addition, the vehicle exhibited an unintended forceful and aggressive acceleration. The failures occurred intermittently. The vehicle was taken to an authorized dealer on four separate occasions for the identical failures. The technician was unable to duplicate the failures. The vehicle has not been repaired for the malfunctions. The failure mileage was 75.

- Torrance , CA, USA

problem #1

Nov 242009

RX 350

  • 14,000 miles
Traveling East bound on Texas highway 380 in denton county, tx. Traffic slowed as it approached entrance ramp to I35 southbound. I applied pressure to the brakes to disengage the cruise control and slow vehicle, nothing happened. Did this several times and also tried to turn cruise off from steering column lever. Cruise did not disengage, car did not slow, my vehicle ran into the rear end of the rock hauler truck in front of me.

- Flower Mound, TX, USA

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