1999 Pontiac Montana Owner's Manual - Page 242

yellowblue This light should come on briefly when you start the engine. If it stays on or comes on while you are driving, there's a problem with your traction control system. See "Traction Control System Warning Light" in the Index. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. The traction control system automatically comes on whenever you start your vehicle. To limit wheel spin, especially in slippery road conditions, you should always leave the system on. But you can turn the traction control system off if you ever need to. (You should turn the system off if your vehicle ever gets stuck in sand, mud, ice or snow. See "Rocking Your Vehicle" in the Index.) If the system is limiting wheel spin when you press the button, the indicator light will go off, but the system will not turn off until there is no longer a current need to limit wheel spin. You can turn the system back on at any time by pressing the button again. The traction control system warning light should go off. To turn the system off, press the TCS symbol on the bottom of the button in the center console switchbank. The indicator light on the traction control button will go off. 4-10