Brake Master Cylinder May Need Replacing at 125,000 Miles on Toyota Avalon

At 125,000-150,000 miles, the Brake Master Cylinder may need replacing. When replacing the master cylinder, it is critical to adjust the brake pedal to master cylinder pushrod clearance or the brakes can drag and overheat.

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Average mileage: 146,400 (103,000–219,000)
4 model years affected: 1995, 1996, 2002, 2006
7 people reported this problem
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problem details
2006 Toyota Avalon 108,000 mi,
Upon driving the car, the brake pedal would go almost to the floor for the brakes to engage. Or i would have to pump the brakes 2 times to get a good stopping pedal. Had the master cylinder replaced and everything is back to normal now!
2006 Toyota Avalon 167,000 mi,
Need to depress brake pedal a long way down before brakes engaged despite good brake pads, rotors, calipers.
2002 Toyota Avalon 219,000 mi,
Brakes failed to work without extreme force on pedal, crunching felt pushing pedal, brakes locked up & unable to move car!! Towed to shop, master cylinder stuck, autopsy confirmed internal part in m/ cyl broke and seized up piston return. Really glad it happened pulling into our garage. Could have been a tragic situation, perhaps NHTSA should be advised.... Has happened more than once.... Seems to be XLS models with VSC ... Same??
1996 Toyota Avalon 103,000 mi,
Brakes were intermittently soft for a couple of weeks and we had it looked at. The master cylinder needed replacing along with rotors and pads. It was kind of scary as it would occur when you weren't expecting it, and if you pumped the brakes then they would get high and work.
1996 Toyota Avalon 135,000 mi,
brakes failed, replaced m/c