Electrical problem

[rob81]

I have a problem with my truck completely shuts off and comes back on when im driving and I go over bumps. All my connections to the battery and starter secure. Really at a stand still can't figure it out

[rav3]

Check the securing nuts on the power distribution cap. I saw a video a while back where on of the power line terminals was loose causing this issue. Another thinking is to check you grounds. A couple of videos on YouTube showing them. Check the simple things first.

 

https://youtu.be/LPiBKMJ5Lb8?feature=shared

 

Edited June 2 by rav3

[GMCustomerService]

We recognize the importance of being able to rely on your Silverado, Rob81. Your safety is our top priority, and we would like the opportunity to work alongside you and your local Chevrolet dealer to pursue the resolution of your truck stalling. To proceed, please visit: https://s.chevy.com/support-request  and fill out the support request form with all pertinent details. This form helps our team gather the right information and ensures your request is routed appropriately. We will be on the lookout for your outreach.

[Rad_Rado17]

On 6/4/2026 at 9:40 AM, GMCustomerService said:

We recognize the importance of being able to rely on your Silverado, Rob81. Your safety is our top priority, and we would like the opportunity to work alongside you and your local Chevrolet dealer to pursue the resolution of your truck stalling. To proceed, please visit: https://s.chevy.com/support-request  and fill out the support request form with all pertinent details. This form helps our team gather the right information and ensures your request is routed appropriately. We will be on the lookout for your outreach.

You guys won't do anything.  You will make him pay a $250 diagnostic fee and hopefully try and find the issue.  This has been a known issue with these trucks.  If GM says safety is a top priority then GM would make this a recall or some special coverage like the vacuum pump issue.

[richard wysong]

That GM customer service is an AI bot, don't expect a response