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TPMS issues

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Old Jun 20, 2020 | 02:23 PM
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Default TPMS issues

RR tire reads 37psi regardless of actual psi. I looked up the reset procedure and some say you can do in ACC mode with a strong magnet and some say to use a cub tpms tool with the car not running but on. Is this the same as acc mode or is there some trick to do this.

Also my gas cap just spins and I can pull it off in any position. Put on a new gas cap but the check engine light has not gone off yet. I drove it about 25 mi.

This is a 2005 c6 with no mods.

Last edited by aj15479; Jun 20, 2020 at 02:28 PM. Reason: incomplete desc
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Old Jun 20, 2020 | 02:57 PM
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gas cap will reset the readiness monitors. do a gm drive cycle. tpms may have a battery going dead/ if its original time to replace it
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Old Jun 20, 2020 | 03:00 PM
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what is gm drive cycle ?
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Old Jun 20, 2020 | 03:23 PM
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Originally Posted by aj15479
what is gm drive cycle ?
Google is your friend
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Old Jun 20, 2020 | 05:48 PM
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Originally Posted by aj15479
RR tire reads 37psi regardless of actual psi. I looked up the reset procedure and some say you can do in ACC mode with a strong magnet and some say to use a cub tpms tool with the car not running but on. Is this the same as acc mode or is there some trick to do this.
Get a EL-50448 TPMS Reset tool. Your problems are over. ~$20 if I remember

Originally Posted by aj15479
Also my gas cap just spins and I can pull it off in any position. Put on a new gas cap but the check engine light has not gone off yet. I drove it about 25 mi.

This is a 2005 c6 with no mods.
Just be patient and it will go off. You could alternately drive the GM cycle. This assumes you have the correct gas cap.

2005 c6 Mn6 Z51 Coupe here and yes I've had all the same problems.
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