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- Jul 16, 2021
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- 2022 Mach-E Premium AWD
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)
19 September 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:
Demonstration Of The Condition
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.
(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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