BMW M2 2018 Owners Manual

General
informationSensors in the tire valves measure the tire inflaj
tion pressure and, depending on the model, the
tire temperature.
With use of the system follow further information
found under Tire inflation pressure, refer to
page 212.
Functional
requirements The following conditions must be met for the
system; otherwise, reliable flagging of a loss of
tire inflation pressure is not assured:'xAfter a tire or wheel replacement, a reset was performed with the correct tire inflation presj
sure.'xAfter the tire inflation pressure was adjusted
to a new value, a reset was performed.'xWheels with TPM wheel electronics.
Status
display
Current
status
The system status can be displayed on the Conj trol Display, e.g., whether or not the system is acj
tive.
Via iDrive:
1."My Vehicle"2."Vehicle status"3. "Tire Pressure Monitor"
The current status is displayed.
Tire
conditions General
information
Tire and system status are indicated by the color
of the wheels and a SMS text message on the
Control Display.
All
wheels
green
System is active and will issue a warning related
to the tire inflation pressures stored during the last reset.
One
to
four
yellow
wheels
A flat tire or major drop in the tire inflation presj
sure has occurred in the indicated tires.
Gray
wheelsIt may not be possible to identify tire pressurelosses.
Possible causes:'xMalfunction.'xThe system is being reset.
Additonal
information
The status control display additionally shows the
current tire inflation pressures and, depending on the model, tire temperatures. It shows the actual
values read; they may vary depending on driving
style or weather conditions.
Resetting
the
system Via iDrive:
1."My Vehicle"2."Vehicle status"3. "Tire Pressure Monitor"4.Start the engine but do not drive off.5.Reset tire inflation pressure: "Perform reset".6.Drive away.
The wheels are displayed in gray and the followj
ing is displayed "Resetting Tire Pressure Monitor

"Tire Pressure Monitor active. See label for
recommended pressures." is displayed.
You may interrupt this trip at any time. When you continue the reset resumes automatically.
Messages General
information A low tire inflation pressure may cause the DSC
Dynamic Stability Control to be switched on.
Safety
information
WARNING
A damaged regular tire with low or missing tire inflation pressure impacts handling, such as steering and braking response. There is a risk
of an accident. Do not continue driving. Repair the flat tire or replace the wheel.
If
a
tire
inflation
pressure
check
is
required
Message
A symbol with a Check Control message apj
pears on the Control Display.
SymbolPossible
causeThe system has detected a wheel
change, but no reset was done.
No reset was performed for the sysj
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Inflation was not carried out accordj
ing to specifications.The tire inflation pressure has fallen
below the level of the last reset.Measure1.Check the tire pressure and correct as
needed.2.Reset the system.
If
the
tire
inflation
pressure
is
too
low
Message A yellow warning light is illuminated inthe instrument cluster.
In addition, a symbol with a Check Control mesj
sage appears on the Control Display.
SymbolPossible
causeThere is a tire inflation pressure loss.
No reset was performed for the sysj
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Measure
1.Reduce your speed and drive moderately. Do not exceed a speed of 80 mph/130 km/h.2.At the next opportunity, for instance gas staj
tion, check and correct the tire inflation presj sure in all four tires, if necessary.3.Reset the system.
If
there
is
a
significant
loss
of
tire
inflation
pressure
Message A yellow warning light is illuminated in
the instrument cluster.
In addition, a symbol with the affected tire apj
pears in a Check Control message on the Conj
trol Display.
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SymbolPossible
causeThere is a flat tire or a major loss intire inflation pressure.
No reset was performed for the sysj
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Measure
Reduce your speed and stop cautiously. Avoid
sudden braking and steering maneuvers.
Actions
in
the
event
of
a
flat
tire
1.Identify the damaged tire.
To do this, check the air pressure in all four
tires, for instance using the tire pressure gage
of a flat tire kit.
If the tire inflation pressure in all four tires is
correct, the Tire Pressure Monitor may not
have been initialized. In this case, initialize the system.
If identification of flat tire damage is not posj sible, please contact a dealerss service center
or another qualified service center or repair shop.2.Repair the flat tire, e.g., with a flat tire kit or bychanging the wheel.
Use of sealant, for instance from the flat tire kit,may damage the TPM wheel electronics. In this
case, have the electronics checked and replaced at the next opportunity.
System
limits
Temperature
The tire inflation pressure depends on the tire's
temperature.
Driving or exposure to the sun will increase the
tire's temperature, thus increasing the tire inflaj tion pressure.
The tire inflation pressure is reduced when the tire temperature falls again.
These circumstances may cause a warning
when temperatures fall very sharply.
Sudden
tire
pressure
loss
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Failure
to
perform
a
reset
The system does not function properly if a reset
has not been carried out, for instance a flat tire is reported though tire inflation pressures are corj
rect.
Malfunction The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may not
be possible to identify tire pressure losses.
Examples and recommendations in the followingsituations:'xA wheel without TPM wheel electronics ismounted: have it checked by a dealerss servj
ice center or another qualified service center
or repair shop as needed.'xMalfunction: have system checked by a dealj erss service center or another qualified servjice center or repair shop.'xThe system was unable to complete the rejset. Perform a system reset again.'xInterference caused by systems or devices
with the same radio frequency: after leaving the area of the interference, the system autoj
matically becomes active again.
Declaration
according
to
NHTSA/
FMVSS
138
Tire
Pressure
Monitoring
System
Each tire, including the spare (if provided) should
be checked monthly when cold and inflated to the inflation pressure recommended by the vehijcle manufacturer on the vehicle placard or tire injflation pressure label. (If your vehicle has tires of
a different size than the size indicated on the vej
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hicle placard or tire inflation pressure label, you
should determine the proper tire inflation presj sure for those tires.) As an added safety feature,your vehicle has been equipped with a tire presjsure monitoring system (TPMS) that illuminatesa low tire pressure telltale when one or more of
your tires is significantly under-inflated. Accordj
ingly, when the low tire pressure telltale illumij
nates, you should stop and check your tires as
soon as possible, and inflate them to the proper
pressure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel effij
ciency and tire tread life, and may affect the vehij
cle's handling and stopping ability. Please note
that the TPMS is not a substitute for proper tire
maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under-
inflation has not reached the level to trigger illuj
mination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS
malfunction indicator is combined with the low
tire pressure telltale. When the system detects a
malfunction, the telltale will flash for approxij
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malj
function exists. When the malfunction indicator is
illuminated, the system may not be able to dej
tect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of replacement
or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Alj
ways check the TPMS malfunction telltale after
replacing one or more tires or wheels on your vej
hicle to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue to
function properly.FTM
Flat
Tire
Monitor
Concept
The system detects tire inflation pressure loss
on the basis of rotation speed differences bej
tween the individual wheels while driving.
In the event of a tire inflation pressure loss, the diameter and therefore the rotational speed ofthe corresponding wheel changes. The differjence will be detected and reported as a flat tire.
The system does not measure the actual inflaj
tion pressure in the tires.
Functional
requirementsThe following conditions must be met for the
system; otherwise, reliable flagging of a loss of
tire inflation pressure is not assured:
'xAfter a tire or wheel replacement, an initializaj
tion was performed with the correct tire inflaj
tion pressure.'xAfter the tire inflation pressure was adjusted
to a new value, an initialization was perj
formed.
Status
display
The current status of the flat tire monitor can be
displayed, for instance whether the RPA is active.
Via iDrive:
1."My Vehicle"2."Vehicle status"3. "Flat Tire Monitor"
The status is displayed.
Initialization
required
An initialization must be performed in the followj
ing situations:
'xAfter the tire inflation pressure has been adj
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Performing
initializationWhen initializing, the set tire inflation pressures
serve as reference values in order to detect a flat tire. Initialization is started by confirming the tireinflation pressures.
Do not initialize the system when driving with snow chains.
Via iDrive:1."My Vehicle"2."Vehicle status"3. "Flat Tire Monitor"4.Start the engine but do not drive off.5.Start the initialization with: "Perform reset"6.Drive away.
The initialization is completed while driving, which can be interrupted at any time.
The initialization automatically continues when driving resumes.
Messages Safety
information
WARNING
A damaged regular tire with low or missing tire inflation pressure impacts handling, such as
steering and braking response. There is a risk
of an accident. Do not continue driving. Repair the flat tire or replace the wheel.
Indication
of
a
flat
tire
A yellow warning light is illuminated in
the instrument cluster.
In addition, a symbol with a Check Control mesj sage appears on the Control Display.
SymbolPossible
causeThere is a flat tire or a major loss intire inflation pressure.Measure1.Reduce your speed and stop cautiously.Avoid sudden braking and steering maneuj
vers.2.Identify the damaged wheel. To do this, check the air pressure in all four tires, for inj
stance using the tire pressure gage of a flat
tire kit. If the tire inflation pressure in all tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the sysj tem.3.Repair the flat tire, e.g., with a flat tire kit or bychanging the wheel.
System
limits
The system could be delayed or malfunction inthe following situations:
'xA natural, even tire inflation pressure loss inall four tires will not be recognized. Therefore,
check the tire inflation pressure regularly.'xSudden serious tire damage caused by exterj nal circumstances cannot be recognized inadvance.'xWhen the system has not been initialized.'xWhen driving on a snowy or slippery road surj
face.'xSporty driving style: spinning traction wheels, high lateral acceleration (drifting).'xWhen driving with snow chains.
Intelligent
Safety
Concept
Intelligent Safety enables central operation of the
driver assistance system.
Depending on how the vehicle is equipped, Intelj
ligent Safety consists of one or more systems
that can help prevent an imminent collision.
These systems are active automatically every time the engine is started using the Start/Stopbutton:
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'xApproach control warning with City light brakjing function, refer to page 147.'xPedestrian warning, refer to page 150.
Safety
information
WARNING
The system cannot serve as a substitute for the
driverss personal judgment in assessing visibility and traffic situation. There is a risk of an accij
dent. Adjust driving style to traffic conditions. Watch traffic closely and actively intervene
where appropriate.
WARNING
Indicators and warnings cannot serve as a subj
stitute for the driverss personal judgment. Due
to its limits, the system might not output warnj
ings or reactions or these might be output late,
incorrectly, or without justification. There is a
risk of an accident. Adjust driving style to traffic
conditions. Watch traffic closely and actively inj
tervene where appropriate.
WARNING
Due to system limits, individual functions can
malfunction during tow-starting/towing with the
Intelligent Safety systems activated. There is a
risk of an accident. Switch all Intelligent Safety
systems off prior to tow-starting/towing.
Overview
Button
in
the
vehicle
Intelligent Safety button
Camera
The camera is installed near the interior mirror.
Keep the windshield in front of the interior mirror clean and clear.
Switching
on/off
The Intelligent Safety systems are automatically
active after every departure.
Press button: the systems are switched
off. The LED goes out.
Press button: the systems are switched on. The
LED lights up.
Settings can be made on the Control Display.
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Approach
control
warningwith
City
light
brakingfunction
Concept
The system can help prevent accidents. If an acj
cident cannot be prevented, the system will help reduce the collision speed.
The system sounds a warning before an immij nent collision and activates brakes independj
ently, if needed.
The automatic braking intervention is done with
limited force and duration.
A camera in the area of the interior mirror conj
trols the system.
The approach control warning is available even if
cruise control has been deactivated.
With the vehicle approaching another vehicle inj
tentionally, the approach control warning and
braking are delayed in order to avoid false sysj
tem reactions.
General
information The system warns at two levels of an imminent
danger of collision at speeds from approx.
3 mph/5 km/h. Time of warnings may vary with
the current driving situation.
Appropriate braking kicks in at speeds of up to
35 mph/60 km/h.
Detection
range
Objects that the system can detect are taken
into account.
Safety
information
WARNING
The system cannot serve as a substitute for the driverss personal judgment in assessing visibility and traffic situation. There is a risk of an accij
dent. Adjust driving style to traffic conditions. Watch traffic closely and actively intervenewhere appropriate.
WARNING
Indicators and warnings cannot serve as a subj
stitute for the driverss personal judgment. Due
to its limits, the system might not output warnj ings or reactions or these might be output late,
incorrectly, or without justification. There is a risk of an accident. Adjust driving style to traffic
conditions. Watch traffic closely and actively inj
tervene where appropriate.
WARNING
Due to system limits, individual functions can
malfunction during tow-starting/towing with the
Intelligent Safety systems activated. There is a
risk of an accident. Switch all Intelligent Safety
systems off prior to tow-starting/towing.
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OverviewButton
in
the
vehicle
Intelligent Safety button
Camera
The camera is installed near the interior mirror.
Keep the windshield in front of the interior mirror clean and clear.
Switching
on/off
Switching
on
automatically The system is automatically active after every
driving off.
Switching
off Press button: the system is switched
off. The LED goes out.
Re-press button: the system is switched on. The
LED lights up.
Setting
the
warning
time
The warning time can be set.
Via iDrive:1."My Vehicle"2."Vehicle settings"3."Intelligent Safety"4."Warning time"5.Select the desired setting.
The selected time is stored for the driver profile
currently used.
Warning
with
braking
function Display
If a collision with a vehicle detected in this way is
imminent, a warning symbol appears on the inj strument cluster.
SymbolMeasureSymbol lights up red: prewarning.
Brake and increase distance.Symbol flashes red and an acoustic
signal sounds: acute warning.
Brake and make an evasive maneuj
ver, if necessary.
Prewarning
This warning is issued, for instance when there is
the impending danger of a collision or the disj tance to the vehicle ahead is too small.
The driver must intervene actively when there is
a prewarning.
Acute
warning
with
braking
function
Acute warning is displayed in case of the immij
nent danger of a collision when the vehicle apj
proaches another object at a high differential
speed.
The driver must intervene actively when there is
an acute warning. If necessary, the driver is asj
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sisted by a minor automatic braking intervention
in a possible risk of collision.
Acute warnings can also be triggered without
previous forewarning.
Braking
interventionThe warning prompts the driver to react. During
a warning, the maximum braking force is used.
Prerequisite for the brake booster is sufficiently quick and hard stepping on the brake pedal. If
there is a risk of collision, the system may assist with braking. When the vehicle is traveling at a
low speed, the vehicle may come to a complete
stop.
Manual transmission: during a braking intervenj
tion up to a complete stop, the engine may be shut down.
The braking intervention occurs only if vehicle
stability has not been restricted, for instance by deactivating the DSC Dynamic Stability Control.
The driver may cancel the braking intervention
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 functionalrestrictions.
System
limits
Safety
information
WARNING
The system can react not at all, too late, incorj
rectly, or without justification due to the system limits. There is a risk of accidents or risk ofdamage to property. Follow the information rejgarding the system limits and actively interveneif needed.
Detection
range
The system's detection potential is limited.
Thus, a system reaction might not come or might come late.
E.g., the following situations may not be dej tected:'xSlow moving vehicles when you approach them at high speed.'xVehicles that suddenly swerve in front of you,
or sharply decelerating vehicles.'xVehicles with an unusual rear appearance.'xTwo-wheeled vehicles ahead of you.
Functional
limitations
The system may not be fully functional in the folj
lowing situations:
'xIn heavy fog, wet conditions, or snowfall.'xIn tight curves.'xIf the driving stability control systems are limj
ited or deactivated, for instance DSC OFF.'xIf the field of view of the camera in the mirror is dirty or obscured.'xUp to 10 seconds after the start of the engine
via the Start/Stop button.'xDuring calibration of the camera immediately
after vehicle delivery.'xIf there are constant blinding effects because
of oncoming light, for instance from the sun low in the sky.
Warning
sensitivity
The more sensitive the warning settings are, for
example the warning time, the more warnings are
displayed. Therefore, there may also be an exj
cess of premature or unjustified warnings and rej
actions.
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Person
warning
with
Citylight
braking
function
Concept
The system can help prevent accidents with pej destrians.
When driving at city speeds, the system will isj sue a warning if there is imminent risk of a collijsion with pedestrians, and support this with alight braking function.
The camera in the area of the interior mirror conj
trols the system.
General
informationWith sufficient brightness, the system warnsabout possible collision danger with pedestriansstarting at approx. 6 mph/10 km/h to approx.35 mph/60 km/h and assists with braking beforea collision.
The system reacts to people who are within the
detection range of the system.
Detection
range
The detection area in front of the vehicle is divj ided into two areas:
'xCentral area, arrow 1, directly in front of the
vehicle.'xExpanded area, arrow 2, to the right and left of the central area.
A collision is imminent if pedestrians are located
within the central area. A warning is issued about pedestrians who are located within the extended
area only if they are moving in the direction of thecentral area.
Safety
information
WARNING
The system cannot serve as a substitute for the driverss personal judgment in assessing visibility and traffic situation. There is a risk of an accij
dent. Adjust driving style to traffic conditions.
Watch traffic closely and actively intervenewhere appropriate.
WARNING
Indicators and warnings cannot serve as a subj
stitute for the driverss personal judgment. Due to its limits, the system might not output warnjings or reactions or these might be output late,incorrectly, or without justification. There is arisk of an accident. Adjust driving style to traffic
conditions. Watch traffic closely and actively inj
tervene where appropriate.
WARNING
Due to system limits, individual functions can
malfunction during tow-starting/towing with the
Intelligent Safety systems activated. There is a
risk of an accident. Switch all Intelligent Safety
systems off prior to tow-starting/towing.
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