See also:

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction indic ...

Event data recorder
Your vehicle has computers that monitor and control certain aspects of your vehicle. These computers assist in driving and maintaining optimal vehicle performance. Besides storing data useful for t ...

RX 450h in the Market
I've personally never understood car shoppers' desire to get a hybrid version of a luxury car or SUV, even if the mileage gains are significant, as they are in the RX; these buyers can afford more ...