See also:

Automatic arming
The vehicle is armed immediately after switching the ignition to the off position. The theft indicator will flash every two seconds to act as a theft deterrent when the vehicle is armed. ...

Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have Inspection/Maintenance (I/M) programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent ...

Blocked sensor
If a message regarding a blocked sensor is displayed, the radar signals from the sensor have been obstructed. The sensor is located behind a fascia cover near the driver side of the lower gr ...