If you notice that your speedometer is giving you the incorrect speed, is jumping or is not working at all, you may need to get it repaired or calibrated. Unlike some components of your vehicle Supplemental Restraint System (SRS), the speedometer is something you can try to tackle on your own if that’s something you would like to do or you can go to a professional to ensure it is done correctly.
If you are doing it on your own, the first task would be to find out what the issue is. One reason the speedometer may not be giving you the correct reading is if you’ve installed tires that are larger or smaller than original equipment tires, or if you have installed a ring and pinion gear set with a different rear gear ratio. A speedometer calibration tool allows you to re-program for correct speedometer and odometer readings. The vehicle’s computer uses the diameter of the tires to calculate your vehicle’s speed. If you’ve installed taller or shorter tires or changed the rear gear ratio, the vehicle will give incorrect reading since it is still calibrated the previous dimensions. This is a big issue not only because it is unsafe but it is required by law to have a properly working speedometer.
A speedometer calibration tool can also help if you have a “check engine” light or “service needed” message. It allows you to read the code and then gives you the ability to clear the code and turn the “check engine” light off. After you do this, you can then make the repairs needed so the light does not come back on again.
If you want any of this handled by a professional, Safety Restore can help. They can assist you in getting your speedometer calibrated safely and quickly. Both the electrical and mechanical speedometer calibration service is only $118.99, making it very affordable. Safety Restore can also help you in all other parts of your vehicles Supplemental Restraint System such as seat belt repair, airbag module reset, and custom seat belt webbing. Visit SafetyRestore.com for more information on how you can get back on the road with the help of this BBB accredited company.