On Star in ERROR
Thread Starter
Le Mans Master
Joined: Apr 2020
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On Star in ERROR
Has anyone seen something like this on their C8 or any other GM vehicle?
"Low air pressure has been detected in one or more tires on your 2022 GMC Acadia. - Passenger Side Rear (24PSI)"
I drove it this morning and never saw or received a "check engine / warning light". I just checked my vehicle and tire looks good (24 psi should be obvious), started engine and checked DIC, ALL tires are at 37psi (still warm after driving).
How could / did this get reported?
"Low air pressure has been detected in one or more tires on your 2022 GMC Acadia. - Passenger Side Rear (24PSI)"
I drove it this morning and never saw or received a "check engine / warning light". I just checked my vehicle and tire looks good (24 psi should be obvious), started engine and checked DIC, ALL tires are at 37psi (still warm after driving).
How could / did this get reported?
Thread Starter
Le Mans Master
Joined: Apr 2020
Posts: 6,380
Likes: 3,294
@YO-EL This pressure glitch got sent out about a yr or so to 10's of thousands of vehicles...IIRC
Thanks for your reply.
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Has anyone seen something like this on their C8 or any other GM vehicle?
"Low air pressure has been detected in one or more tires on your 2022 GMC Acadia. - Passenger Side Rear (24PSI)"
I drove it this morning and never saw or received a "check engine / warning light". I just checked my vehicle and tire looks good (24 psi should be obvious), started engine and checked DIC, ALL tires are at 37psi (still warm after driving).
How could / did this get reported?
"Low air pressure has been detected in one or more tires on your 2022 GMC Acadia. - Passenger Side Rear (24PSI)"
I drove it this morning and never saw or received a "check engine / warning light". I just checked my vehicle and tire looks good (24 psi should be obvious), started engine and checked DIC, ALL tires are at 37psi (still warm after driving).
How could / did this get reported?
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^ This is true. As with most things, a glitch can occur. Check the pressures with a gauge and if way off, bring it to the attention of your dealer or other repair shop.
Thread Starter
Le Mans Master
Joined: Apr 2020
Posts: 6,380
Likes: 3,294
^^ There aren't 2 tire pressure sensors on a wheel (that i know of). The DIC system display and what is reported to ONSTAR should be the exact same information.
If the TPMS is in error it would display the error as a low pressure warning and send it to ONSTAR. The TPMS doesn't send ONSTAR something different than is displayed on the DIC for kicks - It has to be a momentary glitch in the TPMS that corrected itself (doubt) or a glitch in ONSTAR (reported problem by others previously).
Even a temporary glitch in the TPMS would have shown itself while I was driving as a low pressure warning as the ONSTAR reported timeframe was while I was driving, not parked without observation. That did not occur. I'm confident enough to not need to pullout my pressure gauge to verify.
If the TPMS is in error it would display the error as a low pressure warning and send it to ONSTAR. The TPMS doesn't send ONSTAR something different than is displayed on the DIC for kicks - It has to be a momentary glitch in the TPMS that corrected itself (doubt) or a glitch in ONSTAR (reported problem by others previously).
Even a temporary glitch in the TPMS would have shown itself while I was driving as a low pressure warning as the ONSTAR reported timeframe was while I was driving, not parked without observation. That did not occur. I'm confident enough to not need to pullout my pressure gauge to verify.
