Trouble codes P25A2,U0146,

[Brizzo Jenkins]

I know several people have had the same issue. Bye now, this is a known issue on these forums. I have a 2019 Silverado WT, double cab, 4x4.  All recalls up to date. I warmed up the truck this morning since it was cold outside. After about 10 minutes, I got back in the truck to find the check engine light on.  Hooked up the scanner and found codes U0146, U0100, U0101, and P25A2.  I drove the truck 15 miles and the truck ran and shifted fine. No issues.  I used the scanner to clear the codes, and the check engine light went away, and all codes cleared.  So far they haven’t returned, but I’ve only driven the truck about 20 miles since then. Has anyone figured out what the dealer is doing to remedy this? Just curious, because I have that funny feeling that it’s going to come back and I’m going to end up at the dealership. Is there any TSB’s out on this? Does anyone have dealership experience with this issue? I’d love to hear your responses

[GMCustomerService]

Hi there, Brizzo Jenkins. If you haven't already, we recommend reaching out to your preferred dealership so they can take a closer look into this for you. We are happy to faciliate an appointment on your behalf. If interested, please send an email to [email protected] ATTN: Brizzo Jenkins/GM Trucks with your contact information, VIN, brief description of your concern,  and preferred dealership. We look forward to hearing from you. To learn more about GM's privacy policy, please visit http://bit.ly/2h3ZUnC. 

 

Aleigha W. 

[Big_D]

My truck is currently at the dealership for this same code. Apparently the 'fix' is to engage the park brake every time you park the truck. REALLY GM?

 

When in park the wheel speed sensor somehow stays on, if movement detected(parked on an incline, loading truck, etc..) it throws the code. They told me no fix as of today, but they're working on it. What a pain to put on the park brake every time you park, not impressed.

[DutchTexan]

On 5/8/2020 at 1:59 PM, Big_D said:

My truck is currently at the dealership for this same code. Apparently the 'fix' is to engage the park brake every time you park the truck. REALLY GM?

 

When in park the wheel speed sensor somehow stays on, if movement detected(parked on an incline, loading truck, etc..) it throws the code. They told me no fix as of today, but they're working on it. What a pain to put on the park brake every time you park, not impressed.

Thanks for the advice. I will try it out

[Brad11]

I just had the p25a2 code come on. Being a fireman putting the park brake is second nature but after one time of not doing it!!!???

[redwngr]

I usually, but not always, use the PB on mine.  Kinda depends on slope where it is parked.

 

Sometimes (but not usually) when it is on, I intentionally give gentle throttle and have it auto release. 

 

Now has about 5000 miles, none of these 'methods' has caused any codes.

[tbarn]

As of Sept. 2020 there is an update to the software. Take it in.

[silveradosid]

got these codes yesterday on my 2020 rst, i have a subscription with gm software, could you tell me where to look for version number to know if the update has been done

[GMCustomerService]

On 11/6/2022 at 7:12 AM, silveradosid said:

got these codes yesterday on my 2020 rst, i have a subscription with gm software, could you tell me where to look for version number to know if the update has been done

This is certainly not what we like to hear, silveradosid.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2020 Silverado RST. To do so, please send an email to [email protected] with ATTN: silveradosid/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
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