Reverse Braking Assist – Troubleshooting - Reverse Braking Assist – Frequently Asked Questions

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Reverse Braking Assist – Frequently Asked Questions

Why is reverse braking assist unavailable?

Make sure the reverse braking assist is on. See Switching Reverse Braking Assist On and Off.
Make sure that all doors, liftgate or tailgate and hood are closed. Drive the vehicle on a straight road for a short period. If the message remains, contact an authorized dealer.
Make sure the cross traffic alert system is on if equipped. See Switching Cross Traffic Alert On and Off.
Make sure the rear parking aid system is on. See Parking Aids.

Make sure the traction control is on. See Switching Traction Control On and Off .

Note: The traction control automatically turns off if four-wheel drive low and certain drive modes such as mud/ruts and snow/sand is activated.

The vehicle may have sustained a rear end impact. Contact an authorized dealer to have the sensors checked for proper coverage and operation.

An anti-lock brake, traction control or stability control event may have occurred. Reverse braking assist resumes operation when the event is complete.

Make sure the rear view camera and 360 degree camera are not dirty or obstructed. If dirty, clean the camera. If the message still appears after cleaning the camera, wait a short time for the message to clear. If the message does not clear, contact an authorized dealer.

Make sure the cross traffic alert and rear parking aid sensors are not blocked or faulty. See Locating the Cross Traffic Alert Sensors. See Locating the Rear Parking Aid Sensors.

You recently had your vehicle serviced, or the battery disconnected. Drive your vehicle a short distance to resume system operation.

Reverse braking assist does not function when you connect a trailer. Operation resumes when you disconnect the trailer.

Note: If the answers to why the system is unavailable do not assist in returning reverse braking assist to available, have the system checked as soon as possible.

2021 Mustang Mach-E Owner's Manual