Chevy Bolt 2017, blind spot, esp, tire pressure issue

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Yegor.check

New member
Joined
Feb 28, 2025
Messages
3
Location
Texas
I have a 2017 Chevrolet Bolt with 132,000 miles. I'm currently experiencing some issues that seem to be related to the electrical system, and I need help with wiring diagrams and advice.


  1. Issue with the left rear wheel: The tire pressure sensor is not being recognized. I swapped the rear wheel with the front, but the left rear wheel still doesn't detect the tire pressure.
  2. ESP (traction control) light is on: I could suspect a faulty ABS sensor, but there is no ABS warning light on the dashboard. Normally, if the ABS sensor was the issue, I would expect to see an ABS error.
  3. Blind spot monitoring system is not working properly: The indicator in the right rear mirror or the left front mirror is almost always on, even when there is no vehicle in the blind spot.

I performed a diagnostic scan and saw a whole bunch of error codes. Despite these issues, the car seems to be running fine otherwise. I would greatly appreciate any tips or guidance.
 

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Last edited:
The tire pressure sensor in each tire has a battery with about 5 years life. If one goes dead and an attempt to reset the reading, they all will disappear. They can be replaced by tire company, a set of four on Amazon is about $26.

Check the health of the 12v battery, all kind of "funny" behavior and codes can suddenly show up. A rest voltage should be more than 12v, and ~14v with power on. I believe the diagnostic screen may display the voltage, if not check with a digital volt meter
 
Спасибо за ответ! Хорошая новость, что сегодня я уже разобрался с датчиком давления. Так же предыдущему владельцу в неправильном порядке были установлены шины и положение колеса не верно было показано.
Update!
Today, I replaced a faulty tire pressure sensor at Discount Tires and reprogrammed all four wheels. Now, the tire pressure readings are accurate, and the TPMS issue is resolved.
I've been to Discount Tires many times for this service when other vehicles had the same issue, and I think it's the best place for this kind of work so far (not an ad).
I also learned that incorrect blind spot readings could be caused by the foil under the bumper coming loose, leading to false sensor readings, but I haven't checked this yet.

I still have an issue with the EBCM module showing error codes U0422, and I don't know how to fix it yet.
 

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Спасибо за ответ! Хорошая новость, что сегодня я уже разобрался с датчиком давления. Так же предыдущему владельцу в неправильном порядке были установлены шины и положение колеса не верно было показано.
Update!
Today, I replaced a faulty tire pressure sensor at Discount Tires and reprogrammed all four wheels. Now, the tire pressure readings are accurate, and the TPMS issue is resolved.
I've been to Discount Tires many times for this service when other vehicles had the same issue, and I think it's the best place for this kind of work so far (not an ad).
I also learned that incorrect blind spot readings could be caused by the foil under the bumper coming loose, leading to false sensor readings, but I haven't checked this yet.

I still have an issue with the EBCM module showing error codes U0422, and I don't know how to fix it yet.
how much was the cost ? were the new TPMS from DiscountTires ?
 
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