BMW 3 SERIES GRAN TURISMO 2018 Owners Manual

System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informaj
tion regarding the system limits and actively
intervene, if needed.'

A collision is imminent if pedestrians are loj
cated within the central area. A warning is isj
sued about pedestrians who are located within the extended area only if they are moving inthe direction of the central area.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess visibility and trafj fic situation. There is a risk of an accident. Adjjust driving style to traffic conditions. Watchtraffic closely and actively intervene where apj
propriate.'

Warning
with
braking
function
Display
If a collision with a person detected in this way
is imminent, a warning symbol appears on the
instrument cluster and in the Head-up Display.
The red symbol is displayed and a sigj
nal sounds.
With instrument display: the red symj
bol is displayed and a signal sounds.
Intervene immediately by braking or make an
evasive maneuver.
Braking
intervention
The warning prompts the driver himself/herself
to react. During a warning, the maximum brakj
ing force is used. Prerequisite for the brake
booster is sufficiently quick and hard stepping on the brake pedal. The system can assist with
some braking intervention if there is a risk of a collision. At low speeds vehicles may thus
come to a complete stop.
The braking intervention is executed only if vej
hicle stability has not been restricted, for inj
stance by deactivating the DSC Dynamic Staj
bility Control.
The braking intervention can be interrupted by stepping on the accelerator pedal or by acj tively moving the steering wheel.
Object detection can be restricted. Follow the limitations of the detection range and funcjtional restrictions.
System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informajtion regarding the system limits and actively
intervene, if needed.'

Lane
departure
warningConcept
The lane departure warning alerts when the vehicle on roads with lane markings is about to
leave the lane.
General
information Depending on the country version, the system
issues a warning at speeds between
35 mph/55 km/h and 45 mph/70 km/h.
When switching on the system below this
speed, a message is displayed in the instruj ment cluster.
Warnings are issued by means of a steering
wheel vibration. The time of the warning may
vary depending on the current driving situaj tion.
The system does not provide a warning if the turn signal is set before leaving the lane.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess road and traffic
safety. There is a risk of an accident. Adjust
driving style to traffic conditions. Watch traffic
closely and actively intervene where approprij
ate. Do not jerk the steering wheel in response
to a warning.'

Display
in
the
instrument
display'ySymbol orange: system is actij
vated.'yGreen symbol: at least one lane
marking was detected and warnj
ings can be issued.
Issued
warning
If
you
leave
the
lane
If you leave the lane and if a lane marking has
been detected, the steering wheel vibrates.
If the turn signal is set before changing the lane, a warning is not issued.
End
of
warningThe warning is canceled in the following situaj
tions:
'yAutomatically after approx. 3 seconds.'yWhen returning to your own lane.'yWhen braking hard.'yWhen using the turn signal.
System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informaj
tion regarding the system limits and actively
intervene, if needed.'

Before you change lanes after setting the turn
signal, the system issues a warning in the sitj
uations described above.
The light in the exterior mirror housing flashes
and the steering wheel vibrates.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess visibility and trafj fic situation. There is a risk of an accident. Adjjust driving style to traffic conditions. Watchtraffic closely and actively intervene where apj
propriate.'

and the lamp in the exterior mirror housing
flashes brightly.
The warning stops when the turn signal is switched off, or the other vehicle leaves the
critical zone.
Brief
flashing
A brief flashing of the lamp during vehicle unj
locking serves as system self-test.
System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents orrisk of damage to property. Follow the informaj
tion regarding the system limits and actively intervene, if needed.'

'yPersonal driving style, e.g., steering behavj
ior.'yDriving conditions, e.g., length of trip.
Starting at approximately 43 mph/70 km/h, the
system is active and can display a recommenj dation to take a break.
Break
recommendation
If the driver becomes less alert or fatigued, a
message is displayed in the Control Display
with the recommendation to take a break.
A recommendation to take a break is displayed
only once during an uninterrupted trip.
After a break, another recommendation to take
a break cannot be displayed until after approxij
mately 45 minutes.
System
limits
The function may be limited in the following
situations, e.g., and will either output an incorj
rect warning or no warning at all:
'yWhen the clock is set incorrectly.'yWhen the vehicle speed is mainly below about 43 mph/70 km/h.'yWith a sporty driving style, such as duringrapid acceleration or when cornering fast.'yIn active driving situations, such as when
changing lanes frequently.'yWhen the road surface is poor.'yIn the event of strong side winds.
The system is reset approx. 45 minutes after
parking the vehicle, e.g., in the case of a break during longer trips on highways.
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Driving
stability
control
systemsVehicle
features
and
optionsThis chapter describes all standard, country-specific and optional features offered with theseries. It also describes features that are notnecessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and systems, the applicable laws and regulations
must be observed.
Anti-lock
Braking
System
ABS
ABS prevents locking of the wheels during
braking.
The vehicle maintains its steering power even during full brake applications, thus increasing
active safety.
ABS is operational every time you start the enj gine.
Brake
assistant When you apply the brakes rapidly, this systemautomatically produces the greatest possible
braking force boost. It reduces the braking disj
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by the Antilock Brake System ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.DSC
Dynamic
Stability
Control
Concept
Within the physical limits, the system helps to
keep the vehicle on a steady course by reducj
ing engine speed and by applying brakes to
the individual wheels.
General
information
DSC detects the following unstable driving conditions, for instance:'yFishtailing, which can lead to oversteering.'yLoss of traction of the front wheels, which
can lead to understeering.
Dynamic Traction Control DTC, refer to
page 150, is a version of the DSC where forj
ward momentum is optimized.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess the traffic situaj tion. Based on the limits of the system, it canj
not independently react to all traffic situations.
There is a risk of an accident. Adjust driving
style to traffic conditions. Watch traffic closely
and actively intervene where appropriate.'

Overview
Button
in
the
vehicle
DSC OFF button
Indicator/warning
lights The indicator lamp flashes: DSC conj
trols the drive and braking forces.
The indicator lamp lights up: DSC has
malfunctioned.
Deactivating
DSC:
DSC
OFF
General
information When DSC is deactivated, driving stability is
reduced during acceleration and when driving in curves.
To increase vehicle stability, activate DSC again as soon as possible.
Deactivating
DSC Press and hold this button but not lonjger than approx. 10 seconds, until the
indicator light for DSC OFF lights up in the inj
strument cluster and displays DSC OFF.
DSC is switched off.
The steering and, depending on the equipj
ment, suspension are tuned for sporty driving.
Activating
DSC Press button.
DSC OFF and the DSC OFF indicator lamp goout.
Indicator/warning
lights When DSC is deactivated, DSC OFF is disj
played in the instrument cluster.
The indicator lamp lights up: DSC is
deactivated.
DTC
Dynamic
Traction
Control
Concept
DTC is a version of the DSC Dynamic Stability Control where forward momentum is optij mized.
The system ensures maximum headway on
special road conditions or loose road surfaces,
for instance unplowed snowy roads, but with
somewhat limited driving stability.
When DTC is activated, the vehicle has maxij
mum traction. Driving stability is limited during
acceleration and when driving in curves.
Drive carefully.
You may find it useful to briefly activate DTC
under the following special circumstances:'yWhen driving in slush or on uncleared,
snow-covered roads.'yWhen freeing vehicle from deep snow or driving off from loose ground.'yWhen driving with snow chains.
Deactivating/activating
DTC
Dynamic
Traction
Control
Activating
DTC Press button.
TRACTION is displayed in the instruj
ment cluster and the indicator light for DSC OFF lights up.
Seite 150ControlsDriving
stability
control
systems150
Online Edition for Part no. 01402981529 - VI/17