See also:

How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A single tone sounds to indicate the system is working. URPA operates only at speeds less than 8 km/h (5 mph). An obstacle ...

Emissions Inspection and Maintenance Programs
Some local governments may have programs to inspect the on-vehicle emission control equipment. For the inspection, the emission system test equipment is connected to the vehicle’s Data Link Connect ...

Vehicle Data Recording and Privacy
This GM vehicle has a number of sophisticated computers that record information about the vehicle’s performance and how it is driven. For example, the vehicle uses computer modules to monitor and c ...