Mach-Lee

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On some vehicles, sometimes the shift knob will rotate from park without pressing the brake first. It won't actually shift, but it will spit out an error code and you could see a wrench icon and a service vehicle soon error message. Seems like sometimes the locking mechanism fails to actuate properly. A GSM module update is available that may fix this issue on some vehicles, however if the GSM is marked with a 1, 2, or 3 per below it needs to be replaced when encountering this error. SSM 51057 was previously released for this issue, this TSB now directs GSM replacement in some cases. A reminder the GSM is not able to be updated OTA, this must be done via dealer programming (FDRS).

TECHNICAL SERVICE BULLETIN
Shift Knob Rotates Without Brake Pedal Depressed, Transmission Remains In Park (P)
22-2343
19 September 2022
Model:
Ford
2022 Bronco Sport
Built on 08-Nov-2021 and through 18-Jan-2022
2022 EscapeBuilt on 24-Sep-2021 and through 18-Jan-2022
2022 MaverickBuilt on 13-Sep-2021 and through 18-Jan-2022
2021-2022 Mustang Mach-EBuilt on 01-Aug-2021 and through 18-Jan-2022

Issue: Some 2021-2022 Mustang Mach-E vehicles built on 01-Aug-2021 and through 18-Jan-2022, 2022 Maverick vehicles built on 13-Sep-2021 and through 18-Jan-2022, 2022 Escape vehicles built on 24-Sep-2021 and through 18-Jan-2022, 2022 Bronco Sport vehicles built on 08-Nov-2021 and through 18-Jan-2022 may exhibit a shift knob can be rotated without stepping on the brake pedal, although the transmission remains in park (P). This condition may be intermittent, more noticeable in warmer temperatures. DTC P0929 may also be set in the gear shift module (GSM). This may be due to a GSM concern. To correct the condition, follow the Service Procedure to update the GSM.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:

• One of the following vehicles:
- 2021-2022 Mustang Mach-E built on 01-Aug-2021 and through 18-Jan-2022
- 2022 Maverick built on 13-Sep-2021 and through 18-Jan-2022
- 2022 Escape built on 24-Sep-2021 and through 18-Jan-2022
- 2022 Bronco Sport built on 08-Nov-2021 and through 18-Jan-2022

• Shift knob can be rotated without stepping on the brake

Parts
Service Part NumberQuantityDescription
LJ9Z 7P155D​
1​
Gear Shift Module - 2021 Mustang Mach-E
NJ8Z 7P155C​
1​
Gear Shift Module - 2022 Mustang Mach-E
PZ1Z-7P155-C​
1​
Gear Shift Module - Escape
NZ6Z-7P155-A​
1​
Gear Shift Module - Maverick
PZ1Z-7P155-L​
1​
Gear Shift Module - Bronco Sport 1.5L
PZ1Z-7P155-M​
1​
Gear Shift Module - Bronco Sport 2.0L

Labor Times
DescriptionOperation No.Time
2021-2022 Mustang Mach-E: Inspect And Reprogram The GSM (Do Not Use With Any Other Labor Operation)
222343A​
0.4 Hrs.​
2021-2022 Mustang Mach-E: Inspect And Replace The GSM (Do Not Use With Any Other Labor Operation)
222343B​
0.5 Hrs.​
2022 Maverick: Inspect And Reprogram The GSM (Do Not Use With Any Other Labor Operation)
222343C​
0.5 Hrs.​
2022 Maverick: Inspect And Replace The GSM (Do Not Use With Any Other Labor Operation)
222343D​
0.6 Hrs.​
2022 Escape Inspect And Reprogram The GSM (Do Not Use With Any Other Labor Operation)
222343E​
0.3 Hrs.​
2022 Escape: Inspect And Replace The GSM (Do Not Use With Any Other Labor Operation)
222343F​
0.3 Hrs.​
2022 Bronco Sport: Inspect And Reprogram The GSM (Do Not Use With Any Other Labor Operation)
222343G​
0.3 Hrs.​
2022 Bronco Sport: Inspect And Replace The GSM (Do Not Use With Any Other Labor Operation)
222343H​
0.3 Hrs.​
Repair/Claim Coding
Causal Part:7P155
Condition Code:42
Service Procedure

Demonstration Of The Condition

Video: https://bcove.video/3L6U9DK

1. Remove center console trim. Refer to Workshop Manual (WSM) Section 307-05 Step 1.
2. Inspect the GSM at the location identified in Figure 1.
Figure 1
imagen2.jpg

(1). If the GSM is marked with numbers 1, 2, or 3, proceed to Step 4.
(2). If the GSM is marked with number 4 or blank, re-install GSM and proceed to Step 3.
3. Reprogram the GSM using the latest software level of the Ford Diagnostic and Repair System (FDRS). Repair is complete.
4. Replace the GSM. Follow the WSM Section 307-05.

 

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mkhuffman

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This could definitely explain my SVS message. I wonder if it is worth the hassle of getting it fixed when it is such a rare occurrence. The headlight switch problem is much more annoying and yet no fix yet.
 
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generaltso

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Anyone know why the GSM is not updateable via OTA? I thought one of triumphs of the MachE was that every software module at least OTA capable?
Ford never said every module was OTA capable. They just said MOST. It's ironic that Darren Palmer has chosen the GSM module to use as an example in interviews when he talks about OTA updates. He could have picked so many other modules that actually are OTA capable, but seems to be sticking with the GSM.
 

Logal727

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Anyone know why the GSM is not updateable via OTA? I thought one of triumphs of the MachE was that every software module at least OTA capable?
very few are not OTA capable, it's probably something to do with what vendor they use, honestly it's quite a feat that so much of the car is OTA capable
 


Logal727

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This could definitely explain my SVS message. I wonder if it is worth the hassle of getting it fixed when it is such a rare occurrence. The headlight switch problem is much more annoying and yet no fix yet.
Yeah, I've seen that enough times on here to suggest it was probably GSM software related
 

generaltso

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very few are not OTA capable, it's probably something to do with what vendor they use, honestly it's quite a feat that so much of the car is OTA capable
Too bad the headlight switch isn't OTA capable (or updateable at all).
 

bncwhite

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As long as service times at the dealer are despicable, I’m going to stick with muscle memory and just touch the brake before I turn the knob. I’m not going to give my car to the dealer for three weeks just so they can do a half hour of work.
 

breeves002

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My car does this but it doesn't throw a wrench code or freak out. All it does is pops up a message saying "depress brake to shift from P" and immediately goes back into park. Not sure if it actually goes out of park and back in or just stays in park.
 

breeves002

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Mike G

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This seems to be accurate with the exception of the SOBDM. We know from the 22S41 recall that the SOBDM is actually OTA updateable, but this chart from the manual says otherwise.
OTA_Update_Capable.png


EDIT:
I just checked the version from the thread above and it actually shows that the SOBDM is updateable via OTA. They must have changed the manual since I downloaded this page.
 

breeves002

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This seems to be accurate with the exception of the SOBDM. We know from the 22S41 recall that the SOBDM is actually OTA updateable, but this chart from the manual says otherwise.
OTA_Update_Capable.png


EDIT:
I just checked the version from the thread above and it actually shows that the SOBDM is updateable via OTA. They must have changed the manual since I downloaded this page.
Odd because I posted that thread March of 2021. I was going to check the WSM to see if it has been changed since then.
 

Mike G

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Odd because I posted that thread March of 2021. I was going to check the WSM to see if it has been changed since then.
I got that from the PTS version of the workshop manual for the 2022 F-150 (I have a Lightning), so it's entirely possible that there are differences that haven't been reconciled between the two locations (assuming they are different sets of pubs?). I don't have a current subscription to PTS so I can't check.

 

 
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