2004 Toyota Tacoma Owners Manual - Page 214

'04 Tacoma U (L/O 0309) When the "ABS" warning light is on (and the brake system warning light is off), the anti- lock brake system does not operate so that the wheels will lock up during a sudden braking or braking on slippery road surfaces. "VSC TRAC" warning light may come on with the "ABS" warning light (brake assist system warning light) when there is a malfunction somewhere in the anti- lock brake system (brake assist system). If either of the following conditions occurs, this indicates a malfunction somewhere in the components monitored by the warning light system. Contact your Toyota dealer as soon as possible to service the vehicle. 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: BRAKE ASSIST SYSTEM (vehicles with vehicle stability control system only) 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" in Section 1- 6. 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. D The light does not come on when the ignition key is turned to the "ON" position, or remains on. D The light comes on while you are driving. A warning light turning on briefly during operation does not indicate a problem. D Depressing the brake pedal repeatedly may turn on the light. It is normal if it turns off after a few seconds. 214 2004 TACOMA from Sep. '03 Prod. (OM35814U)