Brake Service Mode How-To

Murse-In-Airy

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First Name
Rod
Joined
Mar 5, 2021
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Location
Chaumont, NY
Vehicles
Mach-E ER AWD
Occupation
Nurse
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Because the MME doesn’t follow the normal rules for getting into and out of brake service mode, here is a plain language version adapted from the tech manual.
First, a couple caveats. You will not be able to enter or exit Brake Service mode if you have any fault codes pertaining to the brakes. These must be cleared with a diagnostic computer first. If you don’t have one, and you have faults, you‘re SOL. Bleeding the brakes also requires a diagnostic computer, so really don’t open the brake line. Caliper pistons can be compressed without needing a brake winding tool. The procedure calls for the ignition to be in the “on” position. I still don’t know if that means “on” as in accessory mode, or on as in “Ready to drive” mode. The tech I spoke with said either would work. But here’s the simple Version:

To enter Brake Service Mode:
1. Car turned “on” and in park.
2. Hold the accelorator down. Do not release until told to.
3. Hold the parking brake switch DOWN. Do not release until told to.
4. Turn the car off.
5. Turn the car “on” within 5 seconds.
6. Release the accelerator pedal and parking brake switch.
7. Get out of car.
8. Slap the side of the car while saying aloud, “Well I’ll be, that guy on the interweb was right.”
9. Enjoy your brake work.

To cancel/escape/leave/or otherwise deactivate Brake Service Mode
1. Car turned “on” and in park.
2. Hold the accelerator down. Do not release until told to.
3. Hold the parking brake switch UP. Do not release until told to.
4. Press the brake pedal down for at least 1 second.
5. Release the brake pedal (continue holding the accelerator and parking brake switch)
6. Turn the car off,
7. Turn the car back “on” within 5 seconds.
8. Release the accelerator and parking brake switch.
9. Get out of car.
10. Clean the greasy finger splotches off the start/stop switch and the parking brake switch. You really should have cleaned your hands before deactivating brake service mode.
 
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