Jeep lost acceleration and said “shift to P then desired gear” while on the highway

[Zaptrac]

I just got the truck back from the body shop a few days ago after they had it for a little over a month. Drive it a few miles and it was fine. This morning while i was on the highway heading to work I was doing 65 with the cruise control on. All of the sudden a light on the dash flashed and it kicked me out of cruise control. Then the dash started flashing “Shift to Park then desired gear”. I tried pressing the gas pedal but the truck acted like it was in neutral, engine would rev but i was still slowing down from being kicked out of cruise control. I pulled over, shifted to park, turned the truck off. Then everything was fine when i started the truck again except the truck didn’t detect my key fob. I had to press the start button with the key fob to start it. I happened to have both of the keys with me and it didn’t detect either of them. Has anyone have anything similar happen to them?

Truck drove fine the rest of the drive to work, no lights or anything on the dash. Going to get some replacement key fob batteries since both still have their original batteries from when i got the truck in 2021. And i’m going to borrow an obd2 scanner on the way home. Just wanted to see if anyone else experienced this before or had ideas as what it might be

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[Shopshirt]

Could be your fob batteries, however, what did the body shop work on that they might of disconnected something? If you try to drive with the door open you'll get the " Shift to Park then desired gear" message. If they disconnected the door harness maybe it is loose or a bent pin? Causing it to think one of the doors is open?

 

[Zaptrac]

Yea

Could be your fob batteries, however, what did the body shop work on that they might of disconnected something? If you try to drive with the door open you'll get the " Shift to Park then desired gear" message. If they disconnected the door harness maybe it is loose or a bent pin? Causing it to think one of the doors is open?

Yeah i knew that about the door thing with the auto park, but all the doors were fully shut and all of the body work was on the bed of the truck. So i don’t think they’re what caused it. I was thinking maybe the battery is loose if they disconnected it. I’m also going to check the fuses and the aux battery since i replaced the main battery last year but not the auxiliary battery. I just wasn’t sure if this would be something a dying aux battery could cause

 

[Nitroexpress]

Do you have any type of throttle controller? Like "Pedal Commander" or "Hike It"?

 

[Zaptrac]

Do you have any type of throttle controller? Like "Pedal Commander" or "Hike It"?

Nope, never messed with the ecu or used a tazer or similar product

 

[Mad Mac]

Just yesterday, something like that happened to me.

I stopped temporarily on level dirt and put the shifter in neutral.
When I was ready to go, it would not shift into drive.
The N light was flashing on the shifter panel
and the instrument panel displayed shift into park and then into gear.

So, Zaptrac, could the transmission have slipped into neutral
causing the loss of power and the displayed message.

 

[RandyP111]

I just got the truck back from the body shop a few days ago after they had it for a little over a month. Drive it a few miles and it was fine. This morning while i was on the highway heading to work I was doing 65 with the cruise control on. All of the sudden a light on the dash flashed and it kicked me out of cruise control. Then the dash started flashing “Shift to Park then desired gear”. I tried pressing the gas pedal but the truck acted like it was in neutral, engine would rev but i was still slowing down from being kicked out of cruise control. I pulled over, shifted to park, turned the truck off. Then everything was fine when i started the truck again except the truck didn’t detect my key fob. I had to press the start button with the key fob to start it. I happened to have both of the keys with me and it didn’t detect either of them. Has anyone have anything similar happen to them?

Truck drove fine the rest of the drive to work, no lights or anything on the dash. Going to get some replacement key fob batteries since both still have their original batteries from when i got the truck in 2021. And i’m going to borrow an obd2 scanner on the way home. Just wanted to see if anyone else experienced this before or had ideas as what it might be

All responses seem to be reasonable trouble shooting this...but I will pass on one of my experiences...did you by chance have a coffee cup in the holder closest to the shifter? I did and the finger ring on the cup facing forward contacted the shifter...bumped it and I was thrown into that mode in traffic. It did not knock shifter out of gear, but may have caused a false neutral to be detected. It happened twice, but not since I stopped using the forward cup holder with that cup facing forward ( a heavy 8 oz china coffee cup). I am not kidding you here.

 

[Zaptrac]

All responses seem to be reasonable trouble shooting this...but I will pass on one of my experiences...did you by chance have a coffee cup in the holder closest to the shifter? I did and the finger ring on the cup facing forward contacted the shifter...bumped it and I was thrown into that mode in traffic. It did not knock shifter out of gear, but may have caused a false neutral to be detected. It happened twice, but not since I stopped using the forward cup holder with that cup facing forward ( a heavy 8 oz china coffee cup). I am not kidding you here.

I had one of those skinny canned redbulls in that cup holder at the time. I wouldn’t think that cause it but i guess it’s not impossible based on your experience. Those cans are loosely in the cup holder because of how skinny they are and i guess it could have bumped the shifter and made it think it went to neutral without actually pushing it to neutral

 

[Zaptrac]

Just yesterday, something like that happened to me.

I stopped temporarily on level dirt and put the shifter in neutral.
When I was ready to go, it would not shift into drive.
The N light was flashing on the shifter panel
and the instrument panel displayed shift into park and then into gear.

So, Zaptrac, could the transmission have slipped into neutral
causing the loss of power and the displayed message.

The shifter wasn’t pushed into the neutral position at any point. But another user mentioned their experience of having a coffee cup in the closest cupholder nudging it enough to trick the truck into thinking it shifted to neutral without actually shifting it fully into neutral. Now i’m wondering if that’s what happened to me lol

 

[PW45]

Seems concerning. but it didn't lock up on you and you were able to pull over.

That is especially weird because I once accidentally hit my start/stop push button on the freeway and killed the engine I just shifted to N, restarted the engine and shifted into D all while still coasting.

 

[trontron80]

Had something very similar happen on my 2020 trackhawk today... Accelerated onto highway, let foot off gas, screen said ACC Turned Off (was never on) and then check engine light came on on the car said it was in first gear but it was in neutral. Shut the engine off, turned it back on, was able to drive OK. Shut off again and turned it back on, this time i had to accelerate to get the car to move when it drive and shifting from 1>2 (auto) was very chunky but other shifts were smooth. Vehicle at dealership right now, will update.

 

[trontron80]

Had something very similar happen on my 2020 trackhawk today... Accelerated onto highway, let foot off gas, screen said ACC Turned Off (was never on) and then check engine light came on on the car said it was in first gear but it was in neutral. Shut the engine off, turned it back on, was able to drive OK. Shut off again and turned it back on, this time i had to accelerate to get the car to move when it drive and shifting from 1>2 (auto) was very chunky but other shifts were smooth. Vehicle at dealership right now, will update.

Turns out i need a new transmission

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