Tesla Model 3: Lane Assist

Lane Departure Avoidance

Depending on your vehicle's configuration, this feature may not be available.

Lane Departure Avoidance provides steering interventions if Model 3 drifts into (or close to) an adjacent lane when driving between 40 and 90 mph (64 and 145 km/h) on major roadways with clearly visible lane markings.

Touch Controls > Autopilot > Lane Departure Avoidance and choose:

• OFF: You are not warned of lane departures or potential collisions with a vehicle in an adjacent lane.
•  WARNING: The steering wheel vibrates if a front wheel passes over a lane marking while the associated turn signal is off. A visual warning on the touchscreen is also displayed.
•  ASSIST: In addition to the steering wheel vibration and a visual warning, Model 3 attempts to steer to a safer position in its driving lane if the vehicle detects drifting or a potential collision while the associated turn signal is off.

Your setting is retained until you manually change it.

When Lane Departure Avoidance detects drifting and applies a steering intervention, the designated lane line is highlighted in blue on the touchscreen.

Note: Lane Departure Avoidance is intended to help keep you safe, but it does not work in every situation and does not replace the need to remain attentive and in control.

Warning: Keep your hands on the steering wheel at all times. If the vehicle senses your hands are not on the steering wheel, Model 3 sounds a chime and the hazard warning lights flash.

Warning: Steering interventions are minimal and are not designed to move Model 3 out of its driving lane. Do not rely on steering interventions to avoid side collisions.

Emergency Lane Departure Avoidance

Depending on your vehicle's configuration, this feature may not be available.

For emergency situations, Emergency Lane Departure Avoidance attempts to prevent a potential collision with a vehicle in an adjacent lane by steering Model 3 back into your driving lane when traveling between 40 and 90 mph (64 and 145 km/h). This operates if the cameras can detect the edge of the lane, such as a lane line or curb. When this steering intervention is applied, you will hear a chime and the touchscreen displays a warning while highlighting the lane line red until Model 3 returns to the driving lane. To turn on or off, touch Controls > Autopilot > Emergency Lane Departure Avoidance.

Blind Spot Collision Warning Chime

If you want a chime to sound when a vehicle is in your blind spot and possible collision is detected, touch Controls > Autopilot > Blind Spot Collision Warning Chime.

Warning: Blind Spot Collision Warning Chime cannot detect every collision. It is the driver's responsibility to remain alert and check their blind spots.

Adjacent Lane Speed

Due to market region and vehicle configuration, this feature may not be available on your vehicle.

When your vehicle is moving at a significantly faster speed than neighboring lanes, Model 3 automatically reduces your driving speed. This is especially helpful in heavy traffic situations or when vehicles are constantly merging into different lanes. When Model 3 detects that neighboring driving speeds are significantly slower, the neighboring lane is highlighted with arrows and detected vehicles are highlighted gray on the touchscreen, and your vehicle slows down as appropriate. This functionality can be temporarily overridden by pressing the accelerator pedal. Never rely on Autopilot to determine a safe driving speed; you are responsible for the vehicle and obeying traffic laws.

Limitations and Inaccuracies

Lane Assist cannot always clearly detect lane markings and you may experience unnecessary or invalid warnings in these situations:

• Visibility is poor and lane markings are not clearly visible (due to heavy rain, snow, fog, etc.). The exact detection zone of the ultrasonic sensors varies depending on environmental conditions.
• Bright light (such as from oncoming headlights or direct sunlight) is interfering with the view of the camera(s).
• A vehicle in front of Model 3 is blocking the view of the camera(s).
• The windshield is obstructing the view of the camera(s) (fogged over, dirty, covered by a sticker, etc.).
• Lane markings are excessively worn, have visible previous markings, have been adjusted due to road construction, or are changing quickly (for example, lanes branching off, crossing over, or merging).
• The road is narrow or winding.
• Objects or landscape features are casting strong shadows on lane markers.

Lane Assist may not provide warnings, or may apply inappropriate warnings, in these situations:

• One or more of the ultrasonic sensors is damaged, dirty, or obstructed (such as by mud, ice, or snow).
• Weather conditions (heavy rain, snow, fog, or extremely hot or cold temperatures) are interfering with sensor operation.
• The sensors are affected by other electrical equipment or devices that generate ultrasonic waves.
• An object that is mounted to Model 3 is interfering with and/or obstructing a sensor (such as a bike rack or a bumper sticker).

In addition, Lane Assist may not steer Model 3 away from an adjacent vehicle, or may apply unnecessary or inappropriate steering, in these situations:

• You are driving Model 3 on sharp corners or on a curve at a relatively high speed.
• Bright light (such as from oncoming headlights or direct sunlight) is interfering with the view of the camera(s).
• You are drifting into another lane but an object (such as a vehicle) is not present.
• A vehicle in another lane cuts in front of you or drifts into your driving lane.
• Model 3 is traveling slower than 30 mph (48 km/h) or faster than 90 mph (145 km/h).
• One or more of the ultrasonic sensors is damaged, dirty, or obstructed (such as by mud, ice, or snow).
• Weather conditions (heavy rain, snow, fog, or extremely hot or cold temperatures) are interfering with sensor operation.
• The sensors are affected by other electrical equipment or devices that generate ultrasonic waves.
• An object mounted to Model 3 (such as a bike rack or a bumper sticker) is interfering with or obstructing a sensor.
• Visibility is poor and lane markings are not clearly visible (due to heavy rain, snow, fog, etc.).
• Lane markings are excessively worn, have visible previous markings, have been adjusted due to road construction or are changing quickly (for example, lanes branching off, crossing over, or merging).

Warning: The lists above do not represent every possible situation that may interfere with Lane Assist warnings. Lane Assist may not operate as intended for many other reasons. To avoid a collision, stay alert and always pay attention to the roadway when driving so you can anticipate the need to take corrective action as early as possible.