How do I reset a low tire pressure indicator light on 2007 cobalt
I rented a care and did need to put air in a tire but would rather not return it with a light on the dash board on. Any assistance is much appreciated! Does the key need to be in the run position? Also, Where is the reset button located?
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All you have to do to reset the TPMS light is make sure all your tires are set around 35-38 psi then drive it a a couple miles and the light will turn off. If it is blinking then you have a sensor issue and you will have to take it to the dealer. The tire pressure warning light is yellow not red."Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow"
The low tire pressure warning should go out if you set all of the tire pressures to the correct pressure, then drive the vehicle for about a mile. You should not have to "relearn" the Tire Pressure Monitoring System (TPMS) unless the tires are (A.) rotated into different positions or (B.) There is a bad sensor that needs to be replaced.
For more information, you can read the information in your Owner's Manual. Here is a link to a pdf version 2009 Cobalt owners manual. (The information and procedures are the same for 2008 - 2010 Cobalts) The TPMS section starts on page 5-64
All you should need to do is check and set all tire pressures and make sure to check the spare also, after all tires are set with air you then drive a few blocks and the light should reset if the light does not reset then you will need to find out which wheel has a bad air pressure sensor, this is done with a tool that is put on the valve stem or a scan tool to see which tire is showing the wrong pressure, hope this helps.
Veve713: You probably didn't need new tires unless you had some miles on it. Remember that the spare tire also has a pressure monitor as well. It most likely is causing the low tire pressure light on the dash and only needs to be inflated back to what ever your other tires are set to. I had the same problem on my RX and took it back to the dealership where they told me since the spare is exposed to the same elements (it's under the back of the RX - you have to use the tire iron to let the spare down), it will inevidably lose air.