2007 Toyota 4Runner Owners Manual - Page 354

06 06.08 Brake pad wear limit indicators CAUTION If the "ABS" warning light remains on together with the brake system warning light, immediately stop your vehicle at a safe place and contact your Toyota dealer. In this case, not only the anti−lock brake system will fail but also the vehicle will become extremely unstable during braking. Either of the following conditions may occur, but do not indicate a malfunction: Have your Toyota dealer perform the bedding−down. BRAKE ASSIST SYSTEM When you slam the brakes on, the brake assist system judges as an emergency stop and provides more powerful braking for a driver who cannot hold down the brake pedal firmly. When you slam the brakes on, more powerful braking will be applied. At this time, you may hear a sound in the engine compartment and feel the vibrations of the brake pedal. This does not indicate a malfunction. The brake assist system becomes operative after the vehicle has accelerated to a speed in excess of approximately 10 km/h (6 mph). It stops operating when the vehicle decelerates to a speed below approximately 5 km/h (3 mph). For an explanation of this system's warning light, see "Service reminder indicators and warning buzzers" on page 147 in Section 1−6. CY20004 D The light may stay on for about 60 seconds after the ignition key is turned to the "ON" position. It is normal if it turns off after a while. The brake pad wear limit indicators on your disc brakes give a warning noise when the brake pads are worn to where replacement is required. If you hear a squealing or scraping noise while driving, have the brake pads checked and replaced by your Toyota dealer as soon as possible. Expensive rotor damage can result if the pads are not replaced when necessary. D Depressing the brake pedal repeatedly may turn on the light. It is normal if it turns off after a few seconds. DRUM−IN−DISC TYPE PARKING BRAKE SYSTEM Your vehicle has a drum−in−disc type parking brake system. This type of brake system needs bedding−down of the brake shoes periodically or whenever the parking brake shoes and/or drums are replaced. 338 2007 4Runner from Aug. '06 Prod. (OM35866U)