Table 1 shows one common forward collision avoidance related problems of the 2009 Toyota Prius.
| Problem Category | Number of Problems |
|---|---|
| Automatic Emergency Braking problems |
Breaking system failure do to asb actuator, breaks are locking and vehicle is engine braking.
The engine light went on while driving on the highway. We immediately pulled over and had the vehicle towed to the nearest dealership. The dealership informed us that both the brake actuator (Toyota part to44500-47141) and water pump (Toyota par tog9020-47031) had failed. The car was no longer save to drive.
In the 2009 Toyota series ii vehicle there are two parts for the brake actuator pump assembly which has been cycling about every 20 seconds for the past six months or more. There is an intermittent tone when depressing the brake pedal before starting the car (engine off). The brake dash warning light is on continuously. Occasional loss of brake power in reverse causing the driver to re-apply the brakes to stop unwanted motion of the vehicle.