unixadm

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SSM 49625

Some 2021 Mustang Mach-E/F-150/Edge/Nautilus vehicles may require a reboot of the SYNC 4 system.

For vehicles equipped with a volume/power and right seek button, press and hold both the volume/power and right seek button for 10 seconds and the system will reboot.

For vehicles not equipped with a volume/power button, holding the seek right and volume down buttons on the steering wheel controls will reboot the SYNC 4 system. The Workshop Manual (WSM) is in the process of being updated with this procedure.

APPLICABLE VEHICLES
2021 CAR: DQ CD539N EDGE
2021 TRUCK: FD P702N F150
2021 CAR: D9 U540N MKX
2021 CAR: GW CX727N C-EV
 

GABAR

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So the SYNC 4 soft reboot procedure is similar to SYNC 3.

I say just do a Master Reset and not deal with the soft reboot.
 

Jack in Prescott

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What is this reboot intended for? (This will be my first Ford).

Jack
 

DannyboyUpstate

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So the SYNC 4 soft reboot procedure is similar to SYNC 3.

I say just do a Master Reset and not deal with the soft reboot.
How do you do a “master reset”?
 

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