SOLVED: 2008 Envoy Denali TPMS issues

Discussion in 'Wheels & Tires' started by 56napco, Sep 14, 2016.

  1. Mooseman

    Mooseman Moderator

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    What pressure is showing on the others?
     
  2. xavierny25

    xavierny25 Platinum Supporter

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    34FR 38RR 38RL. Everything seems to have cleared up after I shut it down for a few hours. We will see what's going to happen next. Lol. I gotta go find the original or buy a set of regular bulbs for the license plate.
     
  3. 56napco

    56napco Active Member

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    I don't remember seeing that before but on mine the RF did read higher than the other three wheels. Mine would go to dashed lines then start reading again then back to dashed lines.
     
  4. 56napco

    56napco Active Member

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    So, I installed a pair of Cree LED bulbs in the license plate lights this weekend. No TPMS light this morning but the RF read 1 PSI higher than the rest of the wheels. So far so good with these LED's but will keep an eye on it
     
  5. 56napco

    56napco Active Member

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    20 degrees this morning, TPMS light came on in the usual spot again. It was warmer the last two days so the cold must make the sensor battery weaker or signal weaker. Going to switch back to standard bulbs and leave it.
     
  6. Mooseman

    Mooseman Moderator

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    I unsolved your title. I also think it's an issue with the sensor. I had issues with sensors on new vehicle but perfect service from a set of new take-offs from eBay. Go figure.
     
  7. 56napco

    56napco Active Member

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    I don't believe it's a sensor. With the standard 194 bulbs installed there were no warning lights at all, no intermittent readings and no issues with the keyless remotes regardless of if the headlights were on or not. With the LED bulbs, the TPMS light comes on when the headlights are on and the issue is repeatable. In my case, I'm going to say it's solved by switching back to 194 bulbs.
     
  8. Mooseman

    Mooseman Moderator

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    So it is solved with the regular bulbs, even in the cold? I'll leave it unsolved until it really is confirmed solved!
     
  9. 56napco

    56napco Active Member

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    This is correct, I ran regular bulbs from January 13 until February 5th with no issues. I am going to put those bulbs back in tonight and tomorrow is going to be similar weather as today with temps in the 20's so I will report back then.
     
    xavierny25 likes this.
  10. 56napco

    56napco Active Member

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    Last night I removed the LED's and put back in the standard 194 bulbs. Had 9 degrees this morning, no TPMS light. I'm leaving the standard bulbs in from here on.
     

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