How to turn on blind spot monitor on Ford Edge?

The Ford Edge’s Blind Spot Information System (BLIS) is designed to alert you when another vehicle enters your blind spots. In most Edge models, BLIS is enabled by default and can be toggled on or off using either a physical switch on the dash or through the touchscreen settings. This guide explains how to activate or verify BLIS on common Edge trims and model years.

Understanding BLIS on the Edge

BLIS uses radar sensors and side-mirror indicators to alert you with an amber indicator in the corresponding outside mirror and, in some cases, an audible chime if you begin a lane change into a occupied blind spot. The system typically activates whenever the car is started, but you can disable it if you prefer; re-enabling it follows the same steps. If you don’t see any indicator while driving in adjacent lanes, BLIS might be disabled or not available on your specific model/year.

Steps to enable or verify BLIS

Use either a physical BLIS switch on the dash or the Ford Edge touchscreen to ensure the feature is active. Follow these steps:

1. Check for a BLIS toggle on the left side of the steering column, near the headlight control. The button is typically labeled "BLIS" and may show a two-car icon. If present, press it to toggle BLIS On; a confirmation light or message on the instrument cluster will indicate activation.


2. If there is no physical switch, access the infotainment system. On most Edge models with current software, go to Settings > Vehicle > Driver Assist > Blind Spot Information System. Turn BLIS On from this menu.


3. With BLIS enabled, look for the amber indicator in the outside mirrors when another vehicle is in your blind spot. You can test by signaling left or right while another car is adjacent in that lane.


4. To turn BLIS off, repeat the same steps and toggle BLIS Off. If you still don’t see indicators after turning it On, consult your owner's manual or contact a dealer to confirm BLIS availability for your trim/year.

Note: The exact menu names and layout can vary slightly by year and software version, but the general path—dash toggle or Settings > Driver Assist > Blind Spot Information System—remains common across recent Ford Edge models.

Troubleshooting BLIS activation

If BLIS won't activate or the indicators don't illuminate, try these quick checks: ensure the vehicle is a model/year that supports BLIS for your trim, confirm the BLIS switch is not physically damaged, check for any system warnings on the instrument cluster, and verify the related fuses are intact. If the issue persists, a dealer diagnostic may be necessary.

Usage tips and reminders

Always use your mirrors and head checks in addition to BLIS. Do not rely solely on the system for lane changes. BLIS alerts you to vehicles in your blind spots but does not prevent collisions.

Summary: BLIS on the Ford Edge can be activated either with a dash-mounted switch (where equipped) or through the touchscreen in Settings > Vehicle > Driver Assist > Blind Spot Information System. It is typically enabled by default, and you’ll see amber indicators in the corresponding outside mirror when a vehicle is in your blind spot. If BLIS won’t activate, consult the owner’s manual or contact a Ford dealer for model-year-specific instructions.

How do I turn on my Ford blind spot monitor?

To turn on Ford's blind spot detection (BLIS), use the steering wheel's "OK" or "OK" button to navigate to Settings, then Driver Assist, and finally select Blind Spot to toggle the system on or off. For a trailer, you may need to enter trailer information in the settings to enable BLIS with trailer coverage. 
This video shows how to turn on BLIS on a 2021 Ford Bronco Sport: 54sMarin AcuraYouTube · May 14, 2025
For a standard vehicle
This video demonstrates how to turn off BLIS on a Ford Edge: 1mQuiteAlrightYouTube · Nov 15, 2023

1. Navigate to Settings: Use the up/down arrows on the steering wheel to find "Settings" on the instrument panel. 
2. Select "Driver Assist": Press the "OK" button to enter the "Settings" menu, then scroll to and select "Driver Assist". 
3. Turn on Blind Spot: Select the "Blind Spot" option and choose "On". The system will automatically be on when your vehicle is in drive and above 5-6 mph. 

For a vehicle towing a trailer
You can watch this video to learn how to enable BLIS with trailer coverage: 1mFord Motor CompanyYouTube · Feb 12, 2017

1. Access Trailer Settings: Go to Settings > Driver Assist. You may need to select Towing or look for a specific "Trailer Blind Spot" option depending on your model.
2. Enter Trailer Information: Follow the on-screen prompts to select the type of trailer and enter its length.
3. Save the configuration: Save the information. This is required for BLIS to operate with trailer coverage. 

How do you turn on the blind spot on a Ford Edge?

To turn on the blind spot monitor in a Ford Edge, use the steering wheel's information display controls to navigate to Settings > Driver Assist > Blind Spot, then select "On". If the system is already on, it will activate when you drive forward above 3 mph and remain active in Drive or Neutral.
 
This video demonstrates how to turn on the blind spot monitor in a Ford Edge: 1mQuiteAlrightYouTube · Nov 15, 2023
Step-by-step instructions

1. Press the "Up/Down" arrow buttons on the steering wheel to navigate through the display until "Settings" is shown. 
2. Press "OK" to select Settings. 
3. Use the "Up/Down" arrows to find Driver Assist and press "OK". 
4. Scroll to Blind Spot and press "OK" to turn the system on. 
5. Confirm the setting is changed to "On". 

What to do if it's not working

• Clean the sensors: The sensors are located in the rear bumper. Make sure they are clean from dirt, snow, or ice.
• Check for obstructions: Ensure nothing is covering the sensors, such as bumper stickers or a bike rack.
• Restart the vehicle: Sometimes the system needs a reset. Turn the vehicle off completely, wait 30 seconds, and then turn it back on.
• Drive to re-initialize: After a restart, drive the vehicle above 10 mph for a few minutes. The system may automatically re-enable itself. 

Why is my blind spot detection off?

Your blind spot detection may have turned off due to blocked or dirty sensors, inclement weather, or temporary system limitations like a vehicle in a tight spot. Other common reasons include physical damage to the sensors or mirrors, software glitches, or issues with trailer connections.
 
This video demonstrates how to check for and clear obstructions on blind spot sensors and how to reset the system: 1mDashboard warning lights YouTube · Oct 14, 2025
Temporary and weather-related causes

• Inclement weather: Heavy rain, snow, or fog can interfere with sensor performance. 
• Dirty sensors: Mud, dirt, snow, or ice covering the sensors will cause them to stop working. 
• Close proximity: The system may turn off if a vehicle is too close behind or passes you too quickly. 
• Complex driving situations: The system may be temporarily unavailable when making sharp turns or driving on bumpy roads. 

Obstructions and damage

• Covered sensors: Stickers, bike racks, or other accessories on the rear bumper can block the sensors. 
• Physical damage: Impacts to the rear bumper or damage to the side mirrors can affect the sensors. 
• Water intrusion: Water can get into the side mirrors or sensors, causing temporary or permanent failure. 

Electrical and software issues

• Software glitches: Like any computer system, the blind spot detection software can sometimes have a temporary bug. 
• Wiring problems: A broken wire or corroded connector can cause the system to shut down. 
• Low voltage: A weak or dying 12V battery can cause various safety systems, including blind spot detection, to turn off. 
• Trailer connections: Connecting a trailer, especially with a third-party light, can sometimes disable the system. 

What to do

• Clean the sensors: First, wash the rear bumper and sensors to ensure they are clean. Use a soft cloth, and for stubborn dirt, isopropyl alcohol on a rag can be used to clean the area around the monitor. 
• Check for damage: Visually inspect the rear bumper and the area around the sensors for any obvious damage, debris, or obstructions. 
• Restart your vehicle: Turn the car off and on again to reset the system, especially if it's a software glitch. 
• Check trailer connections: If you've recently connected a trailer, try unplugging it to see if the system returns to normal. 
• Consult a professional: If the problem persists, it's best to have a dealership or mechanic check for any underlying issues, such as wiring problems or damaged sensors. 

How to reset blind spot monitoring?

Turn off your ignition. Completely wait about 30 seconds then restart the car. Drive for a few minutes above 10 mph. The BSM system often reinitializes automatically once it detects movement.