Four problems related to vehicle speed control have been reported for the 2009 Lexus IS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Lexus IS based on all problems reported for the 2009 IS.
At approximately 85k total miles, Is250 automatic began dropping from 5-6k rpm to 2-3k rpm whenever changing road grade to an incline or decline, usually above 50 mph, dropping to 35 mph on the highway. To maintain proper speed, I would have to downshift from d to s and floor the accelerator. Traction control, parking brake, and abs lights would sometimes coincide with this problem. This continued until I sold the Is250 at 88k miles.
It has a few problems it accelerates at times it has airbag recall and unstable to drive at times brakes lock up or touchy when pushed. Just purchased recently from dealer also was stolen twice before.
Mar. 3/4/10 - as I was pulling into a parking space, my 2009 Is250 accelerated and lunged with a high pitched screaming noise. I stepped hard on the brakes but it wouldn't stop it. A large pickup truck was parked with his rear bumper in front of me and it stopped the car. Shaken up, I drove home slowly, called Lexus to tow my car in to check it out. Next day Lexus said they couldn't find anything wrong. I was offered phone # of Lexus corp. Office to file my complaint. I called and they took my statement and said we'd hear from them. On 3/25/10, corp. Office called, said to bring car back into Lexus. My husband said their mechanics said they couldn't find anything wrong. They told him that their corporate mechanics would check it out and to leave it there overnight. When my husband took it in the next day, Lexus didn't know anything about our conversation with their corp. Office but checked our car in. Next day Lexus called and said to pick up our car and that the corp. Office would let us know what they found - have not heard from them since. Updated 4/26/10 updated 05/17/10.
The contact owns a 2009 Lexus Is 250 . He stated that while driving 35 mph up a hill when turning and slowing down by putting his foot on the brake pedal the vehicle accelerated on its own. The vehicle accelerated and crashed over a mountain. The contact sustained major injuries, broke his right shoulder, chest pains, and his face was also injured when the air bag deployed hitting him in the face. The police and the insurance company were contacted and a report was filed by both of them. The vehicle was towed to a local towing facility where they stated that the vehicle was destroyed. The dealer was contacted and wrote a report as well. He also stated that he received a recall notice for the floor mats and was waiting for an appointment. The failure and current mileage were 11000.
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems | |
| Accelerator Stuck problems | |
| Cruise Control problems |