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2021 Ford F-150 Owners Manual - Brakes



Brakes

WARNING: Driving your vehicle with the warning lamp on is dangerous. A significant decrease in braking performance may occur. It may take you longer to stop your vehicle. Have your vehicle checked as soon as possible.

Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury.

Wet brakes result in reduced braking efficiency. Gently press the brake pedal a few times when driving from a car wash or standing water to dry the brakes.

The anti-lock braking system does not eliminate the risk of crash when:

    You drive too closely to the vehicle in front of you.
    Your vehicle is hydroplaning.
    You take corners too fast.
    The road surface is poor.

Note: If the system activates, the brake pedal could pulse and could travel further. Maintain pressure on the brake pedal.

Brake over accelerator allows you to slow your vehicle if the accelerator pedal becomes stuck or entrapped. If you experience this condition, apply the brakes and bring your vehicle to a safe stop. Shift the transmission into park (P), switch the power off and apply the parking brake.

Inspect the accelerator pedal for any interference. If nothing is found, have your vehicle towed to the nearest authorized dealer.

See Under Hood Overview (page 456).

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WARNING: The brake system could be affected if the brake fluid level is below the MIN mark or above the MAX mark on the brake fluid reservoir.

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    Park your vehicle on a level surface.
    Look at the brake fluid reservoir to see where the brake fluid level is relative to the MIN and the MAX marks on the reservoir.

Note: To avoid fluid contamination, the reservoir cap must remain in place and fully tight, unless you are adding fluid.

Only use fluid that meets our specifications. See Capacities and Specifications (page 560).

See Brake Fluid Specification (page 560).

If the ABS indicator illuminates when you are driving, this indicates a malfunction. Your

vehicle continues to have normal braking without the anti-lock braking system function. See an authorized dealer.

It also momentarily illuminates when you switch the ignition on to confirm the lamp is functional. If it does not illuminate when you switch the ignition on, or begins to flash at any time, have the system checked by an authorized dealer.

The brake indicator momentarily illuminates when you switch the ignition on to confirm the lamp

is functional. It may also illuminate when you apply the parking brake and the ignition is on. If it illuminates when your vehicle is moving, make sure the parking brake is disengaged. If the parking brake is disengaged, this indicates low brake fluid level or a brake system fault. See an authorized dealer.

Occasional brake noise is normal. If a metal-to-metal, continuous grinding, or continuous squeal sound is present, the brake lining could be worn-out.

Have the system checked by an authorized dealer.

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Yes, that sound is the electric brake booster operating. This sound is normal when operating your vehicle's brakes.

Note: Brake dust could accumulate on the wheels, even under normal driving conditions. Some dust is inevitable as the brakes wear and does not contribute to brake noise. See Cleaning Wheels (page 487).

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