2009 Volvo XC90 Owner's Manual - Page 57

02 Instruments and controls Instrument panel Rear fog light This light indicates that the fog light is on. ABS (Anti-lock brake system) If the warning light comes on, there is a malfunction of the ABS system (the standard braking system will still function). The vehicle should be driven to a trained and qualified Volvo service technician for inspection. See page 143 for additional information. 02 CHECK ENGINE Malfunction indicator light On-Board Diagnostics II (OBDII): As you drive, a computer called "OBDII" monitors your vehicle's engine, transmission, electrical and emission systems. The CHECK ENGINE light will light up if the computer senses a condition that potentially may need correcting. When this happens, please have your vehicle checked by a trained and qualified Volvo service technician as soon as possible. A CHECK ENGINE light may have many causes. Sometimes, you may not notice a change in your vehicle's behavior. Even so, an uncorrected condition could hurt fuel economy, emission cleanliness, and driveability. Extended driving without correcting the cause could even damage other components in your vehicle. Canadian models are equipped with this warning light. DSTC system The Dynamic Stability and Traction Control system (DSTC) is explained in greater detail on page 145. Tire pressure monitoring light See page 190 for more information on this function. Turn signal indicator - trailer (certain models) If you are towing a trailer, this light will flash simultaneously with the turn signals on the trailer. If the light does not flash when signaling, neither the trailer's turn signals nor the vehicle's turn signals are functioning. 57