Vehicle Speed Control Related Problems of the 2009 Lexus IS

Table 1 shows four common vehicle speed control related problems of the 2009 Lexus IS. The number one most common problem is related to the vehicle speed control (four problems). The second most common problem is related to the car accelerates on its own (three problems).

Table 1. Vehicle Speed Control related problems of Lexus IS


Recently reported Vehicle Speed Control problems of the 2009 Lexus IS

The Vehicle Speed Control problem

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.   Read details...

The Car Accelerates On Its Own problem

3/8/2010 involving 2009 Lexus Is 250: as the driver of the Lexus Is 250 was entering the garage, she was applying pressure to the brake while the garage door was opening. As the driver released the brake to move forward into the garage, the Lexus Is 250 unexpectedly accelerated and the vehicle   Read details...

The Accelerator Stuck problem

The contact owns a 2009 Lexus Is250. The contact stated the vehicle was taken in for routine maintenance, vibration in the steering wheel and also for unintended acceleration at any speed. The dealer road tested the vehicle and found a faulty left wheel bearing and hub assembly that causes   Read details...


Vehicle Speed Control related problems in other Lexus IS model year vehicles:



Fuel Economy of IS Vehicles
IS Service Bulletins
IS Safety Recalls
IS Defect Investigations