2013 Buick Regal Owner Manual - Page 124

5-20 Instruments and Controls This light comes on when the Traction Control System (TCS) has been turned off by pressing and releasing the TCS/StabiliTrak button. This light also comes on and the system turns off if there is a problem with the traction control system. This light comes on when the StabiliTrak system is turned off. If the Traction Control System (TCS) is off, wheel spin is not limited. If StabiliTrak is off, the system does not assist in controlling the vehicle. Turn on the TCS and the StabiliTrak system and the warning light turns off. See Traction Control System (TCS) on page 9‑35 and StabiliTrak® System on page 9‑36 for more information. Up-Shift Light For manual transmission vehicles, there is an up-shift light that comes on in the lower DIC area. It shows when to shift to the next higher gear for best fuel economy. See Manual Transmission on page 9‑30. If the light comes on and stays on for an extended period of time while the system is turned on, the vehicle needs service. See Traction Control System (TCS) on page 9‑35 and StabiliTrak® System on page 9‑36 for more information. Traction Control System (TCS)/StabiliTrak® Light Traction Off Light StabiliTrak® OFF Light The Traction Control System (TCS)/ StabiliTrak light comes on briefly when the engine is started.