2003 Chevrolet Tahoe Owner's Manual - Page 292

Traction Control Operation The traction control system is part of the Stabilitrak@ system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-traction control) as necessary. The traction control system is enabled automatically when you start your vehicle, and it will activate and display the TRACTION ACTIVE message in the Driver Information Center (DIC) if it senses that any of the wheels are spinning or beginning to lose traction while driving. If you turn off Stabilitrak@ only the , brake-traction control portion of traction control will work. The engine speed management will be disabled. In this state, engine power is not reduced automatically and the driven wheels can spin more freely. This can cause the brake-traction control to activate constantly. For more information on the traction active message, see Driver Information Center (DIC) on Notice: If the traction off light comes on due to heavy braking and/or because the traction control system has been continuously active, do not allow the wheel(s) of one axle to spin excessively. If you do, the traction off light will flash to indicate that you may be causing damage to your transfer case. This could lead to costly repairs not covered by your warranty.You should immediately reduce engine power until the tractionoff light stops flashing. If the brake-traction control system activates constantly or if the brakes have heated up due to high speed braking, the brake-traction control will be automatically disabled. The system will come back on after the brakes have cooled. This can take up to two minutes or longer depending on brake usage. Notice: Don't allow the wheel(s) of one axle to spin excessively when the traction off, ABS and brake lights are on and the SERVICE STABILITY MESSAGE is displayed. In this situation, the system may not be able to flash the traction light to warn the off driver of possible damage to the transfer case. This could lead to costly repairs not covered by your warranty. You should immediately reduce engine power until the lights and messages are no longer displayed. page 3-52. 4-13