TPMS and Low Presure dash lights

Asked by Feb 08, 2014 at 02:02 AM about the 2008 Hyundai Sonata Limited V6

Question type: Maintenance & Repair

Hi I have a 2008 Sonata (limited V6 3.3 litter)  I had a tire go flat ad replaced it with the
spare.  During that time while the spare was in use, the TPMS and Low pressure lights
came on ( at the same time),  I was due to replace all four tires, I replaced the 2 back
tires first at Sears, they told me I needed to replace one of the tpms sensors, which I
did have done.  After I got the car back I noticed that neither the TPMS nor the low
pressure lights went off.  I then took the car back a few days later to see if they reset
those dashboard lights, however they said they couldnt get a reading on any of the four
tires from TPMS.  I still need to replace the other 2 tires in the front.  My questions
are: why are both lights lit on the dashboard, and should I wait and replace the other 2
tires before I worry about those TPMS and low pressure lights?

1 Answer

56,825

Check your tire pressures. If you live in a colder climate inflate the tires 4 psi over what the specification is. When air is cold it contracts and lowers the pressures in the tires. Sometimes this is just enough to trigger the tpms. Another possibility is one of the tpms sensors that weren't replaced is bad. I'd replace all 4 if adjusting the tire pressures doesn't correct the problem. Some tpms sensors have batteries in them that will go dead over time. Since your vehicle is a 2008 model that's a real possibility as well. HTH. -Jim

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