2012 GMC Acadia Owner's Manual - Page 137

Instruments and Controls or comes on again while driving, the vehicle needs service. If the regular brake system warning light is not on, there are still brakes, but no antilock brakes. If the regular brake system warning light is also on, there are no antilock brakes and there is a problem with the regular brakes. See Brake System Warning Light on page 5‑19. 5-21 StabiliTrak® Indicator Light Engine Coolant Temperature Warning Light Tow/Haul Mode Light This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light goes off. If it stays on, or comes on while driving, there could be a problem with the StabiliTrak system and the vehicle might need service. When this warning light is on, the system is off and will not limit wheel spin. This light flashes when the StabiliTrak system is active. See StabiliTrak® System on page 9‑28 for more information. The engine coolant temperature warning light comes on briefly when the vehicle is started. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then goes off. If the light comes on and stays on while driving, the vehicle may have a problem with the cooling system. Stop and turn off the vehicle to avoid damage to the engine. A warning chime sounds when this light is on. See Engine Overheating on page 10‑18 for more information. This light comes on when the Tow/Haul mode has been activated. For more information, see Tow/Haul Mode on page 9‑24.