Skip the auto shop - Our mechanics make house calls

Q: How does the speedometer work?

asked by on

How does the speedometer work?

Unless you’ve gone off the pavement and into the wild, you’re driving your car on a road with a speed limit. It’s important to follow those limits, not only because they’re the law, but because they help ensure your safety. The speedometer in your car helps you monitor how fast the vehicle is going.

The speedometer is the gauge on the right-hand side of the instrument cluster. It shows two rings of numbers. The outer ring (the largest) is your speed in miles per hour. The inner ring (the smaller of the two) is your speed in kilometers per hour. The select/reset knob is also located at the bottom of the speedometer.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do you correctly start the engine?

If you’re an experienced driver, chances are good that you don’t put a lot of thought into cranking the engine. You slide into the driver’s seat, insert the key, turn it and prepare to drive. However, there are some specific...

Q: Throttle response is dull now

Your frustrations are totally understandable as your gas pedal should respond normally. If the throttle is sticking this will cause your engine RPMs to remain high which is likely why you ran a stop sign. This issue could also cause...

Q: Interchangeable Speedometer?

Hello. The two take different part numbers and if the numbers are different then most likely they are not interchangeable. If you need help installing a new speedometer your best bet may be to consult a local dealer.

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.