BMW i4 Cruise Driver Assistance Systems User Manual

i4 Cruise Driver Assistance Systems
User Manual

BMW i4 Cruise Driver Assistance Systems

▷ Green marker: system is ac‐ tive, the marker shows the set speed.
▷ Grey marker: system is inter‐ rupted; the marker shows the stored speed.
▷ No marker: system is switched off.

Indicator light

▷ Green indicator light: the system is active.
▷ Grey indicator light: the system is in‐ terrupted.
▷ No indicator light: the system is switched off.

Displays in the Head-up display

Some information from the system can also be shown in the Head-up display.
The icon is displayed when the selected set speed has been reached.

System limits

The set speed is also maintained when driving downhill. The vehicle may not achieve the set speed on uphill gradients if there is not enough drive power.
In ECO PRO drive mode, it is possible that the vehicle will drive faster or slower than the set speed setting in some situations, for example on downhill or uphill gradients.

Active Cruise Control with distance control

Principle
Active Cruise Control allows the driver to specify a set speed and a desired distance from the ve‐ hicle in front, using the buttons on the steering wheel.
General
When the road ahead is clear, the system main‐ tains the set speed. The vehicle accelerates or brakes automatically.
If there is a vehicle driving in front, the system adapts the speed of your vehicle in order to maintain the set distance from the vehicle ahead. The speed is adapted as far as the given situa‐ tion allows.
The distance can be set in several stages and for safety reasons is dependent on the respective speed.
If the vehicle ahead brakes to a standstill and sets off again shortly afterwards, the system is able to comprehend this as far as the given con‐ ditions allow.
Otherwise, drive off yourself, for example by pressing the accelerator pedal or rocker switch on the steering wheel.
Depending on the vehicle setting, the character‐ istics of Cruise Control may change in certain areas, for example acceleration in ECO PRO drive mode is less pronounced.

Safety notes

WARNING
The system does not relieve you of your per‐ sonal responsibility to assess the traffic situa‐ tion correctly. Due to system limitations, it can‐ not respond independently and appropriately in all traffic conditions. There is a risk of accident. Adapt your driving style to the traffic conditions. Observe the traffic situation and intervene ac‐ tively if the situation warrants it.
WARNING
An unsecured vehicle can start moving and roll‐ ing away. There is a risk of accident. Before leaving the vehicle, secure it to prevent it from rolling away.
Observe the following to ensure that the vehi‐ cle is secured against rolling away:
▷ Apply the parking brake.
▷ Turn the front wheels towards the kerb on upward or downward gradients.
▷ Additionally secure the vehicle on upward or downward gradients, for example with a chock.
WARNING
The desired speed may be set incorrectly by mistake or called up accidentally. There is a risk of accident. Adjust the desired speed to the traffic conditions. Observe the traffic situation and intervene actively if the situation warrants it.
WARNING
There is a risk of accident if the difference in speed relative to other vehicles is too great. This may occur, for example, in the following situations:
▷ When quickly approaching a slowly mov‐ ing vehicle.
▷ If another vehicle suddenly veers into the vehicle’s own lane.
▷ When quickly approaching stationary vehi‐ cles.
There is a risk of injury or even death. Observe the traffic situation and intervene actively if the situation warrants it.

Overview

Buttons on the steering wheel
Button Function

| With Steering and Lane Control Assis‐ tant:
Cruise Control on/off.
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| With Steering and Lane Control Assis‐ tant:
To select the function.
| Without Steering and Lane Control As‐ sistant:
Cruise Control on/off.
| To store the current speed.
Speed Limit Assist: to accept the sug‐ gested speed manually.
| With Steering and Lane Control Assis‐ tant:
To interrupt Cruise Control.
To resume Cruise Control with last setting.
| Without Steering and Lane Control As‐ sistant:
To resume Cruise Control with last setting.
| Without Steering and Lane Control As‐ sistant:
To interrupt Cruise Control.
| To increase the distance.
To switch distance control on/off.
| To reduce the distance.
To switch distance control on/off.
| Rocker switch:
To set the speed.

Sensors
The system is controlled using the following sen‐ sors:
▷ Cameras behind the windscreen.
▷ Front radar sensor.
For further information:
Sensors in the vehicle, see page 47.
Use
The system can be used to optimum effect on well-constructed roads.
The minimum speed that can be set is 30 km/h/20 mph.
The maximum speed which can be set is limited and depends on the vehicle and its equipment, for example.
Higher speeds can be set by switching to Cruise Control without distance control.
The system can also be activated when the vehi‐ cle is at a standstill.
Turning the Cruise Control on/off or interrupting it
Steering and Lane Control Assistant: Assisted Driving Mode
General
The button is used to switch the set function on and off.
The button is used to set the primary function.
Setting the function
When the system is active, press the button repeatedly until the desired func‐ tion is selected in the toolbar. The Assis‐ ted Driving Mode toolbar is shown at the bottom of the instrument cluster.

tant.

The selected function is shown in green.
Turning on the system
With Steering and Lane Control Assistant:

1. Press the button on the steering wheel.
2. Set Cruise Control if necessary.
   Without Steering and Lane Control Assistant:
   Press the button on the steering wheel.

The indicator lights are illuminated in the instru‐ ment cluster and the marker in the speedometer is positioned at the current speed.
Cruise Control is active. The driven speed is maintained and stored as the set speed. If necessary, the Dynamic Stability Control will be turned on.
Switching the system off
When switching off with the vehicle at a stand‐ still, depress the brake at the same time.
Press the button on the steering wheel:
With Steering and Lane Control Assis‐ tant.
Without Steering and Lane Control As‐ sistant.
The displays turn off. The stored set speed is deleted.
Manually interrupting the system
With the system active, press the button on the steering wheel:
With Steering and Lane Control Assis‐ tant.
Without Steering and Lane Control As‐ sistant.
If interrupting the system when the vehicle is at a standstill, depress the brake at the same time.
Interrupting the system automatically
The system is interrupted automatically in the following situations:
▷ The driver brakes.
▷ Selector lever position D is disengaged.
▷ Dynamic Traction Control is activated or Dy‐ namic Stability Control is deactivated.
▷ The Dynamic Stability Control adjusts.
▷ When the vehicle is stationary, the seat belt is unfastened and the driver’s door is opened.
▷ The system has not detected any objects for an extended period, for example, on a road with very little traffic without curb or shoulder markings.
▷ The detection range of the radar is impaired, for example, by contamination or heavy pre‐ cipitation.
▷ After an extended stationary period, if the ve‐ hicle was decelerated to a standstill by the system.

Setting the speed

Maintaining and saving the speed

While the system is interrupted, press the rocker switch up or down once. The system is activa‐ ted.
The current speed is maintained and stored as the set speed.
The stored speed is displayed on the speedom‐ eter.
If necessary, the Dynamic Stability Control will be turned on.
The speed can also be stored by pressing the button.
Press the button.
Changing the speed

Press the rocker switch repeatedly up or down until the set speed is set.
If the system is active, the displayed speed is stored and the vehicle adjusts to the stored speed when the road is clear.

▷ Each time the rocker switch is tapped to the resistance point, the set speed is increased or decreased by 1 km/h, 1 mph.
▷ Each time the rocker switch is pressed be‐ yond the resistance point, the set speed changes to the next multiple of 10 km/h on the km/h display or the next multiple of 5  mph on the mph display in the speedometer.
To repeat an action, hold the rocker switch in the relevant position.
Adjusting the distance
Safety note
WARNING
The system does not relieve you of your per‐ sonal responsibility. System limitations may mean that braking is performed too late. There is a risk of accident or material damage. Pay close attention to the traffic conditions at all times. Adapt the distance to suit traffic and weather conditions and comply with the pre‐ scribed safe distance by braking if necessary.
Reducing the distance
Press the button repeatedly until the de‐ sired distance is set.
The selected distance is displayed in the instru‐ ment cluster.
Increasing the distance
Press the button repeatedly until the de‐ sired distance is set.
The selected distance is displayed in the instru‐ ment cluster.
Adapting the distance automatically
Depending on the equipment and national-mar‐ ket version: the system can be configured so that the distance to the vehicle in front is adapted au‐ tomatically within the set distance according to the traffic situation or environmental factors, for example, poor visibility.

1. “MENU”
2. “Vehicle apps”
3. “Driving settings”
4. “Driver assistance”
5.  “Driving”
6.  “Speed Assistant”
7. “Adjust distance based on conditions”

Resuming Cruise Control

If Cruise Control is interrupted, it can be resumed by calling up the stored speed.
Before calling up the stored speed, make sure that the difference between the current speed and the stored speed is not too great. Otherwise, there may be unintentional deceleration or accel‐ eration.
With the system interrupted, press the button on the steering wheel:
With Steering and Lane Control Assis‐ tant.
Without Steering and Lane Control As‐ sistant.
Cruise Control is resumed with the stored values.
In the following instances, the stored speed value is deleted and therefore cannot be called up again:
▷ When the system is switched off.
▷ When drive-ready state is switched off.
Switching between Cruise Control with/without distance control
Safety note
WARNING
The system does not respond to traffic travel‐ ling in front of you, but instead maintains the stored speed. There is a risk of accident or ma‐ terial damage. Adjust the desired speed to the traffic conditions and brake if necessary.
Switching the Cruise Control mode
To switch Cruise Control without distance con‐ trol on and off:
▷ Press and hold the button.
▷ Press and hold the button.
With Steering and Lane Control Assistant: to switch on distance control:
Press the button.
Without Steering and Lane Control Assistant: to switch on distance control:
▷ Press the button.
▷ Press the button.
A Check Control message is then displayed.
Displays in the instrument cluster
General
Depending on the equipment, the displays in the instrument cluster may vary.
Display in the speedometer
Depending on the equipment, a mark in the speedometer displays the status of the system. ▷ Green marker: system is ac‐ tive, the marker shows the set speed.
▷ Grey marker: system is inter‐ rupted; the marker shows the stored speed.
▷ No marker: system is switched off.
Indicator and warning lights
Depending on the equipment:

No display of distance control because the accelerator pedal is being pressed.
| Green icon: Vehicle ahead detected.
The vehicle icon goes out if no vehicle in front is detected.
Vehicle icon flashes green: Preceding vehicle has driven off.
| Grey icon: System interrupted.
| Icon flashes grey:
The requirements for system operation are no longer being met.
The system has been deactiva‐ ted but will continue to brake until you actively take over by
depressing the brake or acceler‐ ator pedal.
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|

Displays in the Head-up display

Set speed
Some information from the system can also be shown in the Head-up display.
The icon is displayed when the selected set speed has been reached.
Distance information
The icon is shown if your vehicle is too close to the vehicle ahead.
The distance information is active under the following circumstances:
▷ Active Cruise Control with Distance control is switched off.
▷ Display in the Head-up display selected. Head-up display, see page 174.
▷ Distance too close.
▷ Speed above approximately 70 km/h, 40 mph.
With Steering and Lane Control
Assistant: prevent overtaking
This function helps to prevent inadvertent over‐ taking on motorways.
Depending on the equipment and the nationalmarket version, the system can be configured to prevent overtaking in the slower driving lane.
The setting applies to speeds over 80 km/h/50 mph.
When the set speed is significantly higher than the speed in the adjacent lane, passing or over‐ taking may still be possible even if the function is switched on.
At speeds below 80 km/h/50 mph, vehicles on motorways are only overtaken with an adjusted differential speed.
The driver can overtake or accelerate at any time by pressing the accelerator pedal.
Turning the function on/off:

1. “MENU”
2.  “Vehicle apps”
3. “Driving settings”
4. “Driver assistance”
5. “Driving”
6. “Speed Assistant”
7. ▷ “Avoid overtaking on the left”
   ▷ “Avoid overtaking on the right”

System limits

System limits of the sensors
For further information:
▷ Cameras, see page 47.
▷ Radar sensors, see page 48.
Detection range

The system’s detection capability and automatic braking capacity are limited.
For example, two-wheel vehicles may not be de‐ tected.
Deceleration
The system does not decelerate in the following situations:
▷ For pedestrians or similarly slow road users.
▷ Depending on the equipment and nationalmarket version at red traffic lights.
▷ For crossing traffic.
▷ For oncoming vehicles.
Vehicles cutting in

If another vehicle suddenly cuts in front of you, the system might not be able to restore the se‐ lected distance automatically. In some circum‐ stances, it may also not be possible to restore the selected distance if you are driving signifi‐ cantly faster than vehicles in front, for example when rapidly approaching a lorry. If a vehicle is clearly detected in front of you, the system prompts you to intervene by braking, and if nec‐ essary by taking avoidance manoeuvre.
Cornering

If the set speed is too high for cornering, it will be reduced slightly in the bend. However, since bends may not be anticipated in advance, mod‐ erate your speed when cornering.
The system has a restricted detection range. Sit‐ uations can arise on tight bends where a vehicle driving in front will not be detected or will be de‐ tected very late.

When your vehicle is approaching a bend, the curvature may cause the system to respond temporarily to vehicles in the other lane. If the system responds by decelerating the vehicle, you may compensate for this by accelerating briefly. When the accelerator pedal is released again, the system will resume control of the vehi‐ cle’s speed.
Driving off
The vehicle cannot drive off automatically in some situations, for example:
▷ On steep upward gradients.
▷ Before bumps or rises in the road.
▷ When towing a heavy trailer.
In such cases, press the accelerator pedal. Weather
In adverse weather and lighting conditions, sys‐ tem functionality may be limited as follows:
▷ Impaired detection of vehicles.
▷ Brief interruptions when vehicles have already been detected.
Pay attention when driving and respond to the prevailing traffic situation. If necessary, intervene actively, for example by braking, steering or tak‐ ing avoidance manoeuvre.
Drive power
The set speed is also maintained when driving downhill. The vehicle may not achieve the set speed on uphill gradients if there is not enough drive power.
In ECO PRO drive mode, it is possible that the vehicle will drive faster or slower than the set speed setting in some situations, for example on downhill or uphill gradients.

Speed Limit Assist

Principle
Speed Limit Assist helps the driver to observe speed limits. A suggested speed can be adop‐ ted.
General
When the systems in the vehicle, for example Speed Limit Info, detect a change in the speed limit, it is possible to adopt this new speed value for the following systems:
▷ Manual Speed Limiter.
▷ Cruise Control.
▷ Active Cruise Control with distance control.
The speed value is proposed as a new set speed for adopting. The relevant system must be acti‐ vated for the speed value to be adopted.
Depending on the equipment, destination sys‐ tem and national-market version, the value may be applied automatically.
With traffic light detection: Speed Limit Assist controls the speed when the vehicle approaches red traffic lights.
Safety notes
WARNING
The system does not relieve you of your per‐ sonal responsibility to assess the traffic situa‐ tion correctly. Due to system limitations, it can‐ not respond independently and appropriately in all traffic conditions. There is a risk of accident. Adapt your driving style to the traffic conditions. Observe the traffic situation and intervene ac‐ tively if the situation warrants it.
WARNING
The desired speed may be set incorrectly by mistake or called up accidentally. There is a risk of accident. Adjust the desired speed to the traffic conditions. Observe the traffic situation and intervene actively if the situation warrants it.
Overview
Buttons on the steering wheel Button Function
To accept the suggested speed man‐ ually.
With traffic light detection: detected traffic lights are accepted manually.
Rocker switch: To set the speed; see Cruise Control.

Online Edition for Part no. 01405A48801 – X/21

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