CHECK ENGINE Malfunction indicatorlight

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.
See also:
Tire pressure monitoring light
The tire pressure monitoring
system uses sensors
mounted in the tire valves to check inflation
pressure levels. When the vehicle is moving
at a speed of approximately 20 mph
(30 km/h) or faster, ...
Driving on rough/unpaved surfaces
The Volvo XC90 is designed primarily for onroad
driving, and it has excellent handling characteristics
on very rough or unpaved roads.
When driving on poorly maintained or unpaved
roads, please ...
Temporary Spare
A spare tire can be purchased for your vehicle as an accessory. Follow the instructions
included with the spare tire regarding use and stowing in the vehicle. See also
page 290 for additional info ...
