6.0

fairly significant
Typical Repair Cost:
$1,400
Average Mileage:
136,000 miles
Total Complaints:
2 complaints

Most common solutions:

  1. repair & replace booster cylinder (2 reports)
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problem #2

Sep 122023

Prius II 1.8L 4-cyl

  • CVT transmission
  • 171,700 miles

click to see larger images

brake booster pump failure brake booster pump failure

Brake booster and brake booster pump assembly are faulty and failing. Brakes are still functioning, but will ultimately fail without warning, from what I have read. This is highly dangerous for myself and other motorists. I was driving last week and tried coming to a stop at an intersection. I pushed the brake pedal and the car hesitated and then jumped/lurched forward before coming to a complete stop. The brake booster is sounding every 30 to 45 seconds to try and build back the pressure it is losing. Toyota offered a "Customer Support Program" for these parts, as there's been numerous premature failures. Unfortunately, my vehicle no longer fits within the parameters of the support program (see attached). From what I've read though, Toyota has been negligent with replacing the brake booster under the support program.

I have called Toyota Corporate and they have offered no reprieve and won't stand behind this faulty part. Toyota needs to be forced to recall these 3rd gen Priuses and ordered to replace the breaking system. Expecting customers to shell out between $2-3k to have the ability to safely break/stop their vehicle is ridiculous, especially when Toyota is more than aware of this issue. I was quoted $2600 over the phone to remedy the issue from an independent hybrid shop. I've owned 7 Toyota's and two have been Priuses. This 2011 is by far one of their worst to roll off the assembly line with numerous reports of breaking problems, oil consumption issues, and head gasket failures. They need to stand behind their product(s), especially to brand loyal customers.

- Brandon N., Berea, KY, US

problem #1

Apr 192021

Prius

  • Manual transmission
  • 100,300 miles

Just bought the Prius and no problem, brake booster pump went out then locked my brakes and it appears that it is under recall. It was dangerous to drive.

Brake booster pump it appears is in class action?

- Arlene M., Tallahassee, US