Intelligent Assist Steer
Intelligent Assist Steer builds upon Traffic-Aware Cruise Control (see Traffic-Aware Cruise Control), intelligently keeping Model X in its driving lane when cruising at a set speed. Intelligent Assist Steer also allows you to use the turn signals to move Model X into an adjacent lane (see Intelligent Assist Lane Change). Intelligent Assist Steer detects lane markings and the presence of vehicles and objects to steerModel X.
Operating Intelligent Assist Steer
Before you can operate Intelligent Assist Steer , you must enable it by touching .
To initiate Intelligent Assist Steer , pull the Assisted Driving stalk toward you twice in quick succession.
Intelligent Assist Steer briefly displays a message on the instrument panel reminding you to pay attention to the road and be ready to take over at any time.
The speed at which you can initiate Intelligent Assist Steer can vary depending on various conditions and whether or not a vehicle is detected ahead of you. When no vehicle is detected ahead of you, you must be driving at least 30 km/h, unless certain vehicle and environmental conditions are met, in which case, you may be able to initiate it at lower speeds. When a vehicle is detected ahead of you, you can initiate Intelligent Assist Steer at any speed, even when stationary, provided Model X is at least 150 cm behind the detected vehicle.
In situations where Intelligent Assist Steer is temporarily unavailable, the Intelligent Assist Steer icon disappears. For example, your driving speed is not within the speed required for Intelligent Assist Steer to operate. Intelligent Assist Steer may also be unavailable if it is not receiving adequate data from the camera(s).
If unable to detect lane markings, Intelligent Assist Steer may determine the driving lane based on a vehicle you are following.
In most cases, Intelligent Assist Steer attempts to center Model X in the driving lane. However, there may be situations in which Intelligent Assist Steer may steer Model X in a driving path that is offset from the center of the lane (for example, detection of guard rails).
Restricted Speed
On a controlled-access highway, the cruising speed reflects the speed limit, taking into consideration any offset you've specified using Speed Assist. However, if you choose to use Intelligent Assist Steer on residential roads, a road without a center divider, or a road where access is not limited, Intelligent Assist Steer may limit the maximum allowed cruising speed and the instrument panel displays a message indicating that speed is restricted. The restricted speed will be the speed limit of the road plus 10 km/h.
In situations where the speed limit cannot be detected when Intelligent Assist Steer is engaged, Intelligent Assist Steer reduces your driving speed and limits the set cruising speed to 70 km/h. Although you can manually accelerate to exceed the limited speed, Model X may not brake for detected obstacles. Intelligent Assist Steer slows down to the limited speed when you release the accelerator pedal. When you leave the road, or disengage Intelligent Assist Steer by using the steering wheel, you can increase your set speed again, if desired.
Hold Steering Wheel
Intelligent Assist Steer determines how best to steer Model X. When active, Intelligent Assist Steer requires you to hold the steering wheel. If it does not detect your hands on the steering wheel for a period of time, a flashing light appears along the top of the instrument panel and the following message displays:
Intelligent Assist Steer detects your hands by recognizing slight resistance as the steering wheel turns, or from you manually turning the steering wheel very lightly (without enough force to take over steering). Intelligent Assist Steer also qualifies your hands as being detected if you engage a turn signal use the Assisted Driving stalk, or use a button or scroll wheel on the steering wheel.
Intelligent Assist Steer requires that you pay attention to your surroundings and remain prepared to take control at any time. If Intelligent Assist Steer still does not detect your hands on the steering wheel, the flashing light on the instrument panel increases in frequency and a chime sounds.
If you repeatedly ignore Intelligent Assist Steer 's prompts to apply slight force to the steering wheel, Intelligent Assist Steer disables for the rest of the drive and displays the following message requesting you to drive manually. If you don't resume manual steering, Intelligent Assist Steer sounds a continuous chime, turns on the warning flashers, and slows the vehicle to a complete stop.
For the rest of the drive, you must steer manually. Intelligent Assist Steer is available again on your next drive (after you stop and shift Model X into Park).
Assisted Driving Suspension
Use of Assisted Driving features will be suspended if improper usage is detected.
Use of Intelligent Assist Steer is suspended for a week when you or another driver of your vehicle receives three Assisted Driving "strikeouts." A strikeout is when the Assisted Driving system disengages for the remainder of a trip after the driver receives several audio and visual warnings for inattentiveness.
You can see how many strikeouts are remaining before Assisted Driving access is suspended by touching .
A strikeout is forgiven after half a week (3.5 days), as long as you don't receive another strikeout in that time.
There may be occasions where driver intervention is required and you must take over immediately to maintain safe driving. Driver-initiated disengagements do not count as improper usage and are expected from the driver.
Take Over Immediately
In situations where Intelligent Assist Steer is unable to steer Model X, Intelligent Assist Steer sounds a warning chime and displays the following message on the instrument panel:
When you see this message, TAKE OVER STEERING IMMEDIATELY.
Canceling Intelligent Assist Steer
Intelligent Assist Steer cancels when:
- You press the brake pedal.
- You start steering manually.NoteIf Assisted Driving Activation is set to Double Pull and Intelligent Assist Steer cancels because you started steering manually, Traffic-Aware Cruise Control remains active. If Assisted Driving Activation is set to Single Pull and Intelligent Assist Steer cancels because you started steering manually, Traffic-Aware Cruise Control also cancels.
- You push the Assisted Driving stalk away from you.
- You exceed the maximum speed at which Intelligent Assist Steer operates – 150 km/h.
- You shift.
- A door is opened.
- An Automatic Emergency Braking event occurs (see Collision Avoidance Assist).
When Intelligent Assist Steer cancels, it sounds a chime and the Intelligent Assist Steer icon either turns gray to indicate that Intelligent Assist Steer is no longer active, or disappears to indicate that it is not currently available.
To disable Intelligent Assist Steer so it is no longer available, touch .
Intelligent Assist Lane Change
When Intelligent Assist Steer is active, engage a turn signal to move Model X into an adjacent lane (moving the steering wheel would cancel Intelligent Assist Steer ).
Operating Intelligent Assist Lane Change
Intelligent Assist Lane Change is available whenever Intelligent Assist Steer is active.
To change lanes using Intelligent Assist Lane Change :
- Perform visual checks to make sure it is safe and appropriate to move into the target lane.
- Engage the appropriate turn signal, keeping your hands on the steering wheel.
- If needed, cancel the turn signal once you are in the target lane.
Intelligent Assist Lane Change moves Model X into the adjacent lane in the direction indicated by the turn signal, provided the following conditions are met:
- The turn signal is engaged.
- Model X does not detect a vehicle in its blind spot, or a vehicle or obstacle up to the center of the target lane.
- Lane markings indicate that a lane change is permitted.
- Midway through the lane change, Model X must detect the target lane's outside lane marking. If this lane marking is not detected, the lane change is aborted and Model X returns to its original driving lane.
- The view of the camera(s) is not obstructed.
When an automatic lane change is in progress, Overtake Acceleration is activated, allowing Model X to accelerate closer to a vehicle in front (see Overtake Acceleration).
When using Intelligent Assist Lane Change , it is important to monitor its performance by watching the driving path in front of you and the surrounding area. Stay prepared to take over steering at any time. As you are crossing over into the adjacent lane, the instrument panel displays the location in the lane that Model X is moving into.
In situations where Intelligent Assist Lane Change is unable to operate at optimal performance, or cannot operate due to inadequate data, the instrument panel displays a series of warnings. Therefore, when using Intelligent Assist Lane Change , always pay attention to the instrument panel and be prepared to manually steer Model X.
Adjacent Lane Speed
When moving significantly faster than vehicles in adjacent lanes, Model X automatically reduces the driving speed. This is especially helpful in heavy traffic situations or when vehicles are constantly merging into different lanes. When Model X detects other vehicles driving significantly slower, the instrument panel highlights the adjacent lanes with arrows and detected vehicles in gray, and Model X reduces the driving speed as appropriate. To temporarily override this feature, press the accelerator pedal.
Limitations
Intelligent Assist Steer and its associated functions are particularly unlikely to operate as intended when:
- Intelligent Assist Steer is unable to accurately determine lane markings. For example, lane markings are excessively worn, have visible previous markings, have been adjusted due to road construction, are changing quickly (lanes branching off, crossing over, or merging), objects or landscape features are casting strong shadows on the lane markings, or the road surface contains pavement seams or other high-contrast lines.
- Visibility is poor (heavy rain, snow, fog, etc.) or weather conditions are interfering with sensor operation.
- A camera(s) or sensor(s) is obstructed, covered, or damaged.
- Driving on hills.
- Approaching a toll booth.
- Driving on a road that has sharp curves or is excessively rough.
- Bright light (such as direct sunlight) is interfering with the view of the camera(s).
- The sensors (if equipped) are affected by other electrical equipment or devices that generate ultrasonic waves.
- A vehicle is detected in your blind spot when you engage the turn signal.
- Model X is being driven very close to a vehicle in front of it, which is blocking the view of the camera(s).