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:
Removing the cover
1. Press one of the end pieces of the cover
inward.
2. Pull the cover carefully upward and outward.
The other end will release automatically
from its retaining bracket. ...
The alarm system
The alarm is automatically armed whenever the vehicle is locked with the remote
key or optional Personal Car Communicator.
When armed, the alarm continuously monitors a number of points on the vehi ...
Under the Hood
The XC70's turbocharged 2.5-liter inline-five-cylinder delivers 208
horsepower and 236 pounds-feet of torque. Volvo's standard Geartronic
five-speed-automatic transmission has a feature that permi ...
