2010 GMC Canyon Extended Cab Owner's Manual - Page 178

Antilock Brake System (ABS) Warning Light The Antilock Brake System (ABS) light comes on briefly when the engine is started. StabiliTrak®/Traction Control System (TCS) Warning Light The StabiliTrak and Traction Control System (TCS) indicator/warning light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer/retailer. If the system is working normally the indicator light then goes off. If the ABS light stays on, turn the ignition off. If the light comes on while 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 stays on, or comes on again while driving, the vehicle needs service. If the regular brake system warning light is not on, the vehicle still has brakes, but not antilock brakes. If the regular brake system warning light is also on, the vehicle does not have antilock brakes and there is a problem with the regular brakes. See Brake System Warning Light on page 4-25. See DIC Warnings and Messages on page 4-37 for all brake related DIC messages. 4-26 If it does not, have the vehicle serviced by your dealer/retailer. If the system is working normally the indicator light then goes off. The light flashes while the StabiliTrak system and TCS are working to assist the driver with directional control of the vehicle in difficult driving conditions.