2008 Cadillac STS Owner's Manual - Page 219

Antilock Brake System Warning Light For vehicles with the Antilock Brake System (ABS), this light will come on briefly when you start the engine. Traction Control System (TCS) Warning Light If the Traction Control System (TCS) warning light comes on and stays on, there may be a problem with the TCS. That is normal. If the light does not come on then, have it fixed so it will be ready to warn you if there is a problem. If the ABS light stays on, turn the ignition off, if the light comes on when you are driving, stop as soon as it is safely possible and turn the ignition off. Then start the engine again to reset the system. If the ABS light still stays on, or comes on again while you are driving, your vehicle needs service. If the regular brake system warning light is not on, you still have brakes, but you do not have antilock brakes. If the regular brake system warning light is also on, you do not have antilock brakes and there is a problem with your regular brakes. See Brake System Warning Light on page 3-64 For vehicles with a Driver Information Center (DIC), see DIC Warnings and Messages on page 3-80 for all brake related DIC messages. The TCS warning light will come on briefly when the engine is started. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. The light will also come on if you turn the TCS off using the traction control on/off button located on the console. If this light stays on or comes on while you are driving, pull off the road as soon as possible and stop carefully. Turn your engine off and then restart it. If the light still stays on or comes back on again while you are driving, your vehicle needs service. Have the TCS inspected as soon as possible. See Traction Control System (TCS) on page 4-6 and StabiliTrak® System on page 4-8 for more information. Also see Competitive Driving Mode (STS-V) on page 4-7 for more information. 3-65