Loss of power while driving “Shift To Neutral & Press Start”

[tcafranz]

I lost all power going about 45 mph Last night after I let off the gas to make a slight right curve and when I pressed the gas again.
My gauges reset and there was a message on the cluster screen that said “SHIFT TO NEUTRAL AND PRESS START AGAIN” (it may or may not have said “AGAIN”).

I pulled over and while still in Drive with the brake pressed, I shifted to Neutral, and pushed Start/Stop and the entire vehicle reset. The ignition clicked nonstop for awhile but the engine did not turn over.

 

While waiting for AAA, I disconnected my Pulsar LT and tried to start it, but got the same nonstop clicking. 
 

I scanned it and got a code reading: “P16A7: Engine Controls Ignition Relay Feedback Circuit 2”.

 

ANY and ALL feedback is welcomed. 
 

2019 (late/new model) GMC Sierra SLT 5.3L Crew Cab Short Bed ~115k mi if that matters. 

Edited March 21 by tcafranz
Typo

[GMCustomerService]

4 hours ago, tcafranz said:

 

I lost all power going about 45 mph Last night after I let off the gas to make a slight right curve and when I pressed the gas again.
My gauges reset and there was a message on the cluster screen that said “SHIFT TO NEUTRAL AND PRESS START AGAIN” (it may or may not have said “AGAIN”).

I pulled over and while still in Drive with the brake pressed, I pushed Start/Stop and the entire vehicle reset. The ignition clicked nonstop for awhile but the engine did not turn over.

 

While waiting for AAA, I disconnected my Pulsar LT and tried to start it, but got the same nonstop clicking. 
 

I scanned it and got a code reading: “P16A7: Engine Controls Ignition Relay Feedback Circuit 2”.

 

ANY and ALL feedback is welcomed. 
 

2019 (late/new model) GMC Sierra SLT 5.3L Crew Cab Short Bed ~115k mi if that matters. 

Your safety is our highest priority, and we want to learn more about your recent experience and assist however we are able. So that we can learn more, please email us at [email protected]. In your email, be sure to include your VIN, preferred dealerships name and address, your mileage, and your phone number. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.

[GMCustomerService]

As we haven't heard back, our team is reaching out to let you know we want to help. Please email us at [email protected] so we can make sure the appropriate internal teams are involved. 

[GMCustomerService]

Our team is just a message away for assistance. 

[redwngr]

On 3/9/2025 at 4:11 PM, tcafranz said:

 

I lost all power going about 45 mph Last night after I let off the gas to make a slight right curve and when I pressed the gas again.
My gauges reset and there was a message on the cluster screen that said “SHIFT TO NEUTRAL AND PRESS START AGAIN” (it may or may not have said “AGAIN”).

I pulled over and while still in Drive with the brake pressed, I pushed Start/Stop and the entire vehicle reset. The ignition clicked nonstop for awhile but the engine did not turn over.

 

While waiting for AAA, I disconnected my Pulsar LT and tried to start it, but got the same nonstop clicking. 
 

I scanned it and got a code reading: “P16A7: Engine Controls Ignition Relay Feedback Circuit 2”.

 

ANY and ALL feedback is welcomed. 
 

2019 (late/new model) GMC Sierra SLT 5.3L Crew Cab Short Bed ~115k mi if that matters. 

 

Is there a reason you didn't put it in neutral or park before trying to start it?

 

How did this all work out? 

 

Was the cause of the stall identified?

[tcafranz]

Here

https://m.carcomplaints.com/Chevrolet/Silverado_1500/2021/tsbs/tsb-pit5687a.shtml

Edited March 21 by tcafranz
Link

[tcafranz]

3 hours ago, redwngr said:

 

Is there a reason you didn't put it in neutral or park before trying to start it?

 

How did this all work out? 

 

Was the cause of the stall identified?

Dood… what are you talking about? This happened WHILE DRIVING. 
Then I did what it asked and it died. &nbsp
Had it towed to dealer and had them diagnose and repair according to GM TSB #PIT5687A. It cost me $400 because I’m out of warranty but she runs again. 

[tcafranz]

On 3/9/2025 at 5:18 PM, GMCustomerService said:

Your safety is our highest priority, and we want to learn more about your recent experience and assist however we are able. So that we can learn more, please email us at [email protected]. In your email, be sure to include your VIN, preferred dealerships name and address, your mileage, and your phone number. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.

This site is actually ran by GM?

[redwngr]

59 minutes ago, tcafranz said:

Dood… what are you talking about? This happened WHILE DRIVING. 
Then I did what it asked and it died. &nbsp
Had it towed to dealer and had them diagnose and repair according to GM TSB #PIT5687A. It cost me $400 because I’m out of warranty but she runs again. 

 

I see that instead of answering the question you went back and edited your post .....

 

 

 

Dood, you can put it in neutral and coast... 

 

Dood, you said the dic message said 'put in neutral and restart'... 

 

Dood, you've now edited your post... it originally said "and while still in Drive with the brake pressed, I pushed Start/Stop"

That's NOT what the message asked you to do.

 

Dood, they don't start in gear...

 

Dood, I asked the question because the answer may have been new information that would have been helpful to me or others... like some new work around for a stall.

 

 

 

Edited March 21 by redwngr

[redwngr]

1 hour ago, tcafranz said:

This site is actually ran by GM?

No, it's not. 

The site does have journalist content/information as well as the forums.

Click on the home button at top left...

 

GM customer service does use social media sometimes. 

Kinda like call center staff.

Edited March 21 by redwngr