SSM 49625 - SYNC4 System Reboot Procedure for 2021 Mach-E – Various SYNC 4 System Concerns

[Administrator]

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

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[RyZt]

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

Of these four vehicles, Mach E has the most cryptic name.

 

[agoldman]

What does that even mean "may require"? If it freezes? If it fails? Just for fun?

 

[Major]

What does that even mean "may require"? If it freezes? If it fails? Just for fun?

Is anyone else experiencing this problem?

 

[csteaderman]

Just happened to me. Screen just went black. Turning off the car didn’t fix it. Had the car for 9 days. Thankful for this resource!

 

[Hammered]

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

This makes no sense. There isn't a volume power button.

You push and hold steering wheel volume down and forward / seek forward buttons. Hold both for 10 seconds

 

[SnBGC]

This makes no sense. There isn't a volume power button.

You push and hold steering wheel volume down and forward / seek forward buttons. Hold both for 10 seconds

So the next paragraph applies.

This is just a bulletin that clarifies the (now) two different ways to reboot the system. Really doesn't change anything for us. This is the method we use already. I have to do this daily now.