Heated oxygen sensors

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Situations where ACC may not function optimally
WARNING
• The radar sensor has a limited field of
vision. In some situations it may detect
a vehicle later than expected or not
detect other vehicles at all.
• If ACC is not functioning proper ...
Handling
• Check that the battery cables are correctly
connected and tightened.
• Never disconnect the battery when the
engine is running (for example, when
replacing the battery).
• If the battery is ...
Reporting safety defects in Canada
If you believe your vehicle has a defect that could cause a crash or could cause
injury or death, you should immediately inform Transport Canada in addition to notifying
Volvo Cars of Canada Corp. ...
