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Shift-System Fault while driving

cooldaddyu

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Christmas day breakdown.

New to me 2022 Lighting Lariat. After 2 days of driving, including a 5 hour drive home from the dealership (Kamloops to Squamish BC) the truck kicked a Shift-System Fault error while approaching a 4-way stop intersection. there was a clicking sound as it ground to a stop and was presumably shifted to park as part of the error. Once stopped I was able to shift to park, restart vehicle and continued to get the error when shifting into R or D and was not driveable. The vehicle also kicked a Trailer Brake Module Fault at times.

Managed to leave it off for 5-10 minutes while waiting for a tow truck and get it working enough to pull it off to the side of the road before the problem happended again (drove maybe 50-100 ft).

Flat bed tow truck arrived about 20 minutes later. When trying to load on the tow truck, the instrument panel indicated that the vehicle was going into N, but the truck was not actually in N and would not roll. Managed to get it into D to get it up on the flat bed.
By the time we reached the dealership 15 minutes later I was able to start the vehicle without error and reverse off of the tow truck.

Left the vehicle overnight at the dealership and stopped by on boxing day to check it out since the dealer was closed. Started the vehicle and drove once around the parking lot without a problem. Connected my ODBCII reader and there were no stored codes. The only other info is from the app which twice the "Powertrain Malfunction / Reduced Power" fault and "Pro Power Onboard - The Pro Power Reserve setting is two %s of charge away"

At the dealership now. they are booking appointments 1 month out now though I have one for my Mach-e general service which I swapped to this vehicle. Hoping to get this back on the road sooner rather than later, but super concerned about the issue since the vehicle was in drive when it happened and had this happened on the highway it could have resulted in a catastrophic failure/accident. I feel fortunate that it happened on a quiet street on a quiet night.
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Heliian

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Man that's rough. Glad you're safe. Good luck getting the truck fixed. First I've heard about this fault myself.
The shifter has been a problem with several trucks. It's usually fixed with a shifter replacement.
 
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cooldaddyu

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Here's hoping it's as easy as a shifter replacement.
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