Forward Collision Avoidance Related Problems of the 2009 Toyota Prius

Table 1 shows one common forward collision avoidance related problems of the 2009 Toyota Prius.

Table 1. Forward Collision Avoidance related problems of Toyota Prius

Problem Category Number of Problems
Automatic Emergency Braking problems
4

Automatic Emergency Braking problem #1

Brake actuator is broken. Toyota knew about this problem and they had a warranty for 10 years or 150k miles. Mine only has 80k miles. The repair is half of what the car is worth. I thought a Toyota with such low miles would be dependable. Toyota knew that people have died from this problem with their car. I need this car to get to work and get my kids to school. It’s older than 10 years so I am just screwed on something they knew was broken. Of course the sales person at the Toyota dealership did not tell us about it when he sold us the car.

Automatic Emergency Braking problem #2

Breaking system failure do to asb actuator, breaks are locking and vehicle is engine braking.

Automatic Emergency Braking problem #3

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.

Automatic Emergency Braking problem #4

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.


Forward Collision Avoidance related problems in other Toyota Prius model year vehicles:



Prius Service Bulletins
Prius Safety Recalls
Prius Defect Investigations