See also:

Emissions Inspection And Maintenance Programs
In some localities, it may be a legal requirement to pass an inspection of your vehicle’s emissions control system. Failure to pass could prevent vehicle registration. For states that require ...

Instrument Cluster — Premium
Instrument Cluster — Premium ...

Compass Variance
Compass Variance is the difference between Magnetic North and Geographic North. To compensate for the differences the variance should be set for the zone where the vehicle is driven, per the zon ...