How do states use OBD II for emission inspections?

Many states connect a computer directly to a vehicle's OBD II system. The inspector can then read "faults." In some states, this type of inspection has replaced the tailpipe emission test.
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News - City Safety
City Safety is a new function, sensing if vehicles ahead are moving slower or
standing still. By measuring the car's speed and distance to the vehicle ahead,
City Safety is able to calculate the b ...
SURROUND MODE
Surround sound settings are used to balance
sound levels throughout the vehicle. Surround
settings for the various sound sources are
made separately.
There are three settings for surround sound. ...
Unlocking
1. Insert the remote key into the ignition slot
as far as possible.
2. Press the START/STOP ENGINE button.
> A sound will be audible when the lock
releases.
Vehicles with keyless drive*
A r ...
