Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.

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Downshifting

Shifting to a lower gear, usually so that the engine can operate in its proper rpm range, or in certain circumstances to slow the vehicle.



See Also:
Grease Fitting
Grease Seal
Powertrain
Brake Wear Sensor
Sending Unit
Coolant
Kickdown Switch
Run on

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