How to turn on blind spot monitor Ford Fusion?
The blind spot monitoring system (BLIS) in a Ford Fusion is typically activated automatically on many trims or can be turned on with a dedicated switch on the dash. When active, you’ll see warning indicators in the exterior mirrors if a vehicle enters your blind spot. This guide outlines how to enable and verify BLIS on a Ford Fusion.
What BLIS does and when it works
BLIS uses radar sensors at the rear corners of the vehicle to monitor adjacent lanes. When a vehicle is detected in a driver’s blind spot, an amber warning icon lights up in the corresponding exterior mirror, and an audible alert may accompany a lane change signal. Cross-traffic alert helps when backing out of a parking space or driveway. Functionality can vary by year and trim, so consult your manual for specifics.
How to enable BLIS on Ford Fusion
Follow these steps to ensure BLIS is active and you can confirm the system is functioning in your Fusion.
- Start the engine or turn the ignition to ON so the electrical systems, including BLIS, power up.
- Locate the BLIS activation switch. On many Ford Fusion models, this control is a button on the dash or center console labeled BLIS, or indicated by an icon of two cars. It is commonly found near the headlight control dial or to the left side of the steering column.
- Press the BLIS button to turn the feature ON. A confirmation may appear in the instrument cluster, and the exterior mirror indicators should illuminate or the system will become active when you reach driving speeds.
- Drive and test the system by changing lanes at moderate speeds or by observing the mirror indicators. If a vehicle is in your blind spot, you should see an amber icon in the corresponding mirror and may hear a chime when you signal a lane change.
- If the switch shows OFF or if you don’t see any indicators, check the owner’s manual for your exact year and trim. Some models without a physical BLIS switch rely on automatic activation when the ignition is ON, and BLIS can sometimes be disabled via the vehicle’s settings menu.
Note: If BLIS isn’t functioning as expected, ensure the exterior mirrors are properly adjusted and clean, and that the bumper sensors aren’t blocked by dirt or damage. Some conditions, like heavy rain or snow, can affect sensor performance.
When BLIS may not be available
BLIS is not universal to every Ford Fusion trim or model year. Some older or base trims may not include BLIS, or may offer it only as an option. If you cannot locate a BLIS switch or you don’t see mirror indicators, your vehicle may not be equipped with the feature. In that case, rely on traditional shoulder checks and mirror checks for lane changes.
Tips for safe use
Always perform visual checks in addition to BLIS cues. Use your mirrors, perform shoulder checks, and signal before changing lanes. BLIS complements, but does not replace, attentive driving, especially in heavy traffic, poor weather, or complex situations.
Summary
Most Ford Fusion models offer BLIS with a switch on the dash or automatic activation when the ignition is on. To enable it, locate the BLIS control, press to turn it on, and verify the amber warning indicators appear in the side mirrors when another vehicle is in your blind spot. If unsure, consult your owner’s manual for your specific year and trim or contact a Ford dealer for confirmation.
