Service Vehicle Wrench - Gear Shift Module

[EV Engineer]

About 3 months ago I got the "service vehicle soon" message with the wrench icon. I was very nervous but did not lose any % of battery or power. I did get the "4WD powertrain malfunction message" in the Ford App.

I realized the evening before my child had bumped the gear shifter and it was "sticking" a bit. I kept it around town and just kept an eye on things and eventually it went away.


Last night same thing happened. I pressed the silver "shift down" button and it would not work. I assume my gear shift module is getting finnicky. I do not really fold the GSM down, maybe 8-10 times total in the life of the vehicle.


This morning I turned to vehicle off and the silver button worked. Turn the car back on and the "wrench" is gone.


My questions are

1. Does this seem like an accurate diagnosis?
2. What would you do? Take it into Ford for a replacement? I cringe at my vehicle being on a lot for a few weeks for something I can do myself. Honestly I was looking at the turn-dialer already just for more space. Seems I need to pull the trigger.
3. Anyone experience any pushback on a voided warranty for this self Mod? It's a 2023 so I'm running out of Bumper-to-bumper anyways.


Thanks,

EV engineer..

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[Heliian]

If it's under warranty then have them replace it. Out of warranty go with the dial.

 

[LSUT1GER]

Go with the dial. No more smash fingers plus it's totally plug and play and it just works...

 

[chl]

DIAGNOSIS: Yes, could be/probably is the shifter, the "4WD powertrain malfunction message" seems to occur when there is a shifter problem, and these shifters have had issues in F-150's before the Lightning came along. If you tell them your daughter might have damaged it, you might be on the hook for the repair.

FORD REPAIR? Well...I recall some delays have been experienced getting parts, maybe the shifter was one. I might go with a rotary if there was going to be a delay.

ROTARY and WARRANTY: should not cause a warranty issue - you have the right to do mods like that and still have a warranty claim, unless the mod can be proven to have cause the damage.

 

[DavidS]

That sounds exactly how my shifter acted before it eventually failed. The replacement only took a couple of hours but it took a week to get the shifter. This was last summer right out after the improved version arrived. My first one only lasted 60 days, my new one is issue free over a year later but I almost never use the fold down or auto shift to park.
As failure progresses it gets harder to shift into drive so I would not leave it unresolved for long.
If mine fails again, I’m going rotary even though I’m not a fan of the ergonomics.

 

[halfbakedenchilada]

Sounds like the shifter, yes. I had this (almost) same thing happen, had it replaced by Ford, and then the new shifter started to feel janky again so I swapped it for the rotary. The rotary is great, best mod I've made to the truck. I've had the truck in 2 times for two recalls and no one has said anything about the rotary shifter. I suspect they see a fair number of them, but I don't know.

I would do the rotary swap ASAP.

 

[kuzzin]

I had very similar symptoms with my 23 Pro SR. After the first replacement the symptoms returned. I ignored them and got stuck a few times and stranded (towing) finally. The second time (September ’25) they replaced it with a new/different part number. The new GSM is quieter, smoother and feels much stronger. Replacement is my recommendation.

 

[Rollin]

I have a 2024 Lariat and have read several reviews about the rotary shifter, does anyone have the correct P/N for the shifter with the backlight and that will automatically return to park when the driver door is open, and you turn the truck off?

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