2003 Toyota 4Runner Owners Manual - Page 1245

'03 4Runner_U (L/O 0305) Traction control system (two-wheel drive models) If the "4LO" (low speed four-wheel drive) indicator light continues to blink when you operate the multi-mode control switch knob to the "H4" or "L4" position, drive forward or backward in a short distance, then stop the vehicle completely, shift the automatic transmission selector lever securely into "N" and operate the switch knob again. If the indicator continues to blink even if doing so, contact your Toyota dealer as soon as possible. There may be a trouble in the four-wheel drive system. The traction control system automatically helps prevent the spinning of rear wheels when the vehicle is started or accelerated on slippery road surfaces. When the ignition key is turned to "ON", the system automatically turns on. CAUTION Under certain slippery road conditions, full traction of the vehicle and power to the rear wheels cannot be maintained, even though the traction control system is in operation. Do not drive the vehicle under any speed or maneuvering conditions which may cause the vehicle to lose traction control. In situations where the road surface is covered with ice or snow, your vehicle should be fitted with snow tires or tire chains. Always drive at an appropriate and cautious speed for the present road conditions. CAUTION Never operate the multi-mode control switch knob if the wheels are slipping. Stop the slipping or spinning before operating. NORMAL DRIVING MODE Leave the system on during ordinary driving so that it can operate when needed. You may hear a sound in the engine compartment for a few seconds when the engine is started or just after the vehicle begins to move. This means that the traction control system is in the self-check mode, but does not indicate a malfunction. When the traction control system is operating, the following conditions occur: D The system controls the spinning of the rear wheels. At this time, the slip indicator light blinks. 145 2003 4RUNNER from Apr. '03 Prod. (OM35820U)