2008 Chevrolet Impala Owner's Manual - Page 161

If the light stays on, or comes on when you are driving a SERVICE STABILITRAK message will appear in the DIC. This indicates that there may be a problem with the Electronic Stability Control (ESC) system and your vehicle may need service. When this warning light is on and the SERVICE STABILITRAK message appears on the DIC, the ESC system will not assist you in controlling the vehicle. Adjust your driving accordingly. When the system is active, the light will flash while the system is assisting you in controlling the vehicle. You may also feel or hear the system working. This is normal. See Electronic Stability Control on page 4-7 and DIC Warnings and Messages on page 3-52 for more information. Engine Coolant Temperature Warning Light The engine coolant temperature warning light will come on when the engine has overheated. If this happens you should pull over and turn off the engine as soon as possible. See Engine Overheating on page 5-29 for more information. Notice: Driving with the engine coolant temperature warning light on could cause your vehicle to overheat. See Engine Overheating on page 5-29. Your vehicle could be damaged, and it might not be covered by your warranty. Never drive with the engine coolant temperature warning light on. This light will also come on briefly when starting your vehicle. If it does not, have your vehicle serviced. 3-37