Description & Operation
WARNING:
For warnings and procedures regarding vehicles equipped with Anti-Lock Brake Systems (ABS), see appropriate ANTI-LOCK article.
NOTE:
For disc brake coverage on Lexus LX470, see Land Cruiser information in this article.
Hydraulic brake system uses a tandem master cylinder with a vacuum power assist servo. Land Cruiser and 4Runner are equipped with a hydraulic power assist. RAV4, Sienna, Tundra and 4Runner are equipped with front disc brakes and rear drum brakes standard. Rear disc brakes are standard on Highlander, Land Cruiser and Sequoia.
A Load-Sensing Proportioning Valve (LSVP) is used to regulate brake pressure between front and rear brakes on Tacoma and Tundra. Rear brakes on all models are self-adjusting.
Parking brake lever mechanically activates rear brakes. On models with rear drum brakes, a cable applies rear shoes. On models with rear disc brakes, parking brake is a drum brake internal to rear disc assembly.