Disclaimer: Not affiliated with or endorsed by Ford Motor Company. For informational purposes only. Full Disclaimer

2021 Ford F-150 Owners Manual - Lane Keeping System



Lane Keeping System

The lane keeping system alerts you by providing temporary steering assistance or steering wheel vibration when it detects an unintended lane departure.

The lane keeping system uses a forward looking camera mounted on the windshield to monitor vehicle movement within the travel lane.

When the camera detects a drift out of the travel lane, the lane keeping system alerts the driver by vibrating the steering wheel, or aids the driver by providing a small steering input to move the vehicle back into the travel lane.

The driver can select one of three modes:

    Alert (If Equipped)
    Aid
    Alert + Aid

WARNING: The sensor may incorrectly track lane markings as other structures or objects. This can result in a false or missed warning.

WARNING: In cold and severe weather conditions the system may not function. Rain, snow and spray can all limit sensor performance.

WARNING: The system may not operate properly if the sensor is blocked. Keep the windshield free from obstruction.

WARNING: If damage occurs in the immediate area surrounding the sensor, have your vehicle checked as soon as possible.

WARNING: The system may not correctly operate if your vehicle is fitted with a suspension kit not approved by us.

LANE KEEPING SYSTEM LIMITATIONS

The lane keeping system only operates when the vehicle speed is greater than 40 mph (64 km/h).

The system works when the camera can detect at least one lane marking.

The lane keeping system may not correctly operate in any of the following conditions:

    The lane keeping system does not detect at least one lane marking.
    You switch the turn signal on.
    You apply direct steering, accelerate fast or brake hard.
    The vehicle speed is less than 40 mph (64 km/h).

333

    The anti-lock brake, stability control or traction control system activates.
    The lane is too narrow.
    Something is obscuring the camera or it is unable to detect the lane markings due to environment, traffic or vehicle conditions.
    Entering or exiting a tight curve when driving at high speeds.

The lane keeping system may not correct lane positioning in any of the following conditions:

    High winds.
    Uneven road surfaces.
    Heavy or uneven loads.
    Incorrect tire pressure.

To activate the lane keeping system, press the button on the steering wheel.

To deactivate the lane keeping system, press the button again.

Note: When switching the system on or off a message appears in the information and entertainment display to show the status.

Note: The system stores the on or off setting until manually changed, unless it detects a MyKey™. If the system detects a MyKey™, it defaults to the last setting for that MyKey™.

Note: If the system detects a MyKey™, pressing the button does not affect the on or off status of the system. You can only change the mode and intensity settings.

The lane keeping system has different settings that you can view or adjust using the information display.

The system stores the last known selection for each of these settings. You do not need to readjust your settings each time you switch on the system.

To change the lane keeping system mode, use the touchscreen:

    Press Features on the touchscreen.
    Press Driver Assistance.
    Press Lane-Keeping System.
    Press Lane-Keeping Mode.
    Select a mode.

Note: The system remembers the last setting when you start your vehicle. If the system detects a MyKey™, it defaults to the last setting for that MyKey™.

Alert mode vibrates the steering wheel when it detects an unintended lane departure.

334

E165515

When in alert mode, the lane keeping system alerts you by vibrating the steering wheel. The intensity of the vibration is set through the lane keeping system menu.

To change the steering wheel vibration intensity, use the touchscreen:

    Press Features on the touchscreen.
    Press Driver Assistance.
    Press Lane-Keeping System.
    Press Lane-Keeping Intensity.
    Select an intensity setting.

Aid mode provides temporary steering assistance toward the center of the lane.

E165516

The lane keeping system aids you when an unintentional lane departure occurs. The system provides a small steering input to move the vehicle towards the center of the lane.

Alert and aid mode uses multiple features to keep you in your lane. The system first provides a small steering input to bring your vehicle back towards the center of the lane. If your vehicle moves too far out of the center of the lane the system alerts you with vibration in the steering wheel.

335

LANE KEEPING SYSTEM INDICATORS

    Alert.
    Aid.

The lane keeping system detects a lane departure and provides aid when the vehicles enters B and applies the additional alert warning if A is entered.

E335

If you switch the lane keeping system on, a graphic with lane markings appears in the information display.

When you switch the system off, the lane marking graphics do not display.

Note: The overhead vehicle graphic may still display if adaptive cruise control is enabled.

While the lane keeping system is on, the color of the lane markings change to indicate the system status.

Gray

Green

Yellow

Red

Indicates that the system is tempor- arily unavailable to provide a warning or intervention on the indicated side.

Indicates that the system is available or ready to provide a warning or interven- tion on the indicated side.

Indicates that the system is providing or has just provided a lane keeping aid intervention.

Indicates that the system is providing or has just provided a lane keeping alert warning.

336

Message

Action

Lane Keeping Sys. Malfunction Service Required

The system has malfunctioned. Have your vehicle checked as soon as possible.

Front Camera Temporarily Not Available

The system has detected a condition that has caused the system to be temporarily unavailable.

Front Camera Low Visibility Clean Screen

The system has detected a condition that requires you to clean the windshield in order for it to operate properly.

Front Camera Malfunction Service Required

The system has malfunctioned. Have your vehicle checked as soon as possible.

Keep Hands on Steering Wheel

The system requests that you keep your hands on the steering wheel.

337

Why is the feature not available (lane markings are gray) when I can see the lane markings on the road?

Your vehicle speed is less than 40 mph (65 km/h).

The sun is shining directly into the camera lens.

A quick intentional lane change has occurred.

Your vehicle stays too close to the lane markings for an extended interval of time.

Driving at high speeds in curves.

The last alert warning or aid intervention occurred a short time ago.

Ambiguous lane markings, for example, in construction zones.

Rapid transition from light to dark, or from dark to light.

Sudden offset in lane markings.

ABS or AdvanceTrac™ is active.

There is a camera blockage due to dirt, grime, fog, frost or water on the windshield.

You are driving too close to the vehicle in front of you.

Transitioning between no lane markings to lane markings, or vice versa.

There is standing water on the road.

Faint lane markings, for example, partial yellow lane markings on concrete roads.

Lane width is too narrow or too wide.

You have not calibrated the camera after a windshield replacement.

Driving on tight or on uneven roads.

338

Why does the vehicle not come back toward the middle of the lane, as expected, in the Aid, or Aid + Alert mode?

High cross winds are present.

There is a large road crown.

Rough roads, grooves or shoulder drop-offs.

Heavy, uneven loading of the vehicle or improper tire inflation pressure.

You changed the tires or modified the suspension.

339


Download Manual