My 2008 elentra has had a tire sensor changed, but

The sensor at the tire has gone bad. It needs to be replaced for the light to go out.

check brake fluid level and make sure no leaks if low fill to proper level and check brakes it low change them as to esc when tires were changed workers may have hit sensor or damaged wiring by front end or a bad sensor sometimes rarely some hhr owners state a hiccup and reset the computer and it was fine but before you do that check and make sure brake system is correct and safe usually brake resets itself when repair or fluid is corrected

If you filled the tire, it should have went off. (bad sensor) If you had one replaced the shop should have reset it. If you had new tires put on, they also should have reset it and put in the locations of sensors.

After the tires are all checked and properly inflated simply drive the vehicle non-stop for 8-10 minutes at highway speeds. The system will reset itself after that time if there is no problem. If a sensor is reading low or a tire is still low than the light will not reset. The proper tire inflation for your vehicle can be found on the drivers side front door. It should be around 36 psi.

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If just the tires were changed and you still have the original rims on the vehicle then you may just have a bad pressure sensor in on of the rims or the system may need to be reprogammed to recognize the sensors. If the RIMS were also changed then the replacement rims may not have the pressure sensors in them in which case the light will always be on since the system is always looking for pressure sensor signals that aren't there. If the rims were replaced and don't have the sensors you can purchase and install new sensors in these rims and program them so the system will recognize them.

32 psi is the usual recommended pressure but you may have to fill the tires to 35 psi to make the TPM system reset. That's how most systems recognize that you have serviced the tires. Most TPM systems will indicate low tire pressure around 26-28 psi.

Hello
Welcome, If you have driven over a month and it has not reset there is a problom with one of the 4 sensors, You will need to have the TPMS scaned to see witch sensor is not working,, Here is a link explainin this in detail
http://www.chryslertpms.com/

you have tire pressure sensor that id's each tires pressure. After rotating or changing tire it must be reset to "see" pressure of each tire. Your user manual should have the proceedure. Each manufacturer is different.

tire pressure warning system on this vehicle does not have a reset, it resets itself when everything is working and the tires are properly inflated.