See also:

Volvo XC90 Owners Manual
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Emission inspection readiness
What is an Onboard Diagnostic System (OBD II)? OBD II is part of your vehicle's computerized engine management system. It stores diagnostic information about your vehicle's emission controls. It ...

Messages
When a warning, information or indicator symbol comes on, a corresponding message appears on the information display. An error message is stored in a memory list until the fault is rectified ...