See also:

Engine
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Gauges
Speedometer The speedometer indicates the speed of the vehicle. The speedometer is calibrated in miles per hour and/or kilometers per hour. Tachometer The tachometer indicates the approximate ...

Reporting safety defects (U.S.A only)
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in ...