traction control SMART FORTWO COUPE ELECTRIC DRIVE 2015 Owners Manual

X
Make sure the key is in starter switch
position 1.
X Switch on the parking lamps.
X To brighten or dim illumination: Press
button :on the instrument cluster
repeatedly until the desired setting is
reached.
The current setting is stored. Control system
Introduction
The control system is activated when you
turn the key in the starter switch to posi-
tion 1. G
WARNING
A driver’s attention to the road and traffic conditions must always be his/her primary
focus when driving.
In order to avoid distraction which could
lead to an accident, the driver should
select features and change settings in the
control system only vehicle at a standstill
or when traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h ), your vehicle is
covering a distance of 44 feet (approx-
imately 14 m) every second. Control lever
You can select the displays in the multi-
function display and change settings in the control system with the control lever. :
Control switch
Pressing up selects a menu.
;
OK button
Confirming a selection.
Scrolling through stored messages
in the Messages Messages menu =
Control switch
Pressing down selects a menu.
Multifunction display
The multifunction display shows values and settings as well as display messages.
X Activating the multifunction display:
Unlock the vehicle.
X Confirming messages: Press the OK but-
ton on the control lever briefly
(Y page 83).
X Exiting menu: Press the control switch on
the control lever up or down until the
message Back
Back appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly. Control system
83>> Controls. Z

Setting the period of day
X
Press the control switch on the control
lever (Y page 83) up or down until the
am am pm
pmsubmenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected mode is stored.
Setting the hours X
Press the control switch on the control
lever (Y page 83) up or down until the
Hour Hour submenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected hours are stored.
Setting the minutes X
Press the control switch on the control
lever (Y page 83) up or down until the
Minute Minute submenu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected minutes are stored. Audio system*
G
WARNING
In order to avoid distraction which could
lead to an accident, the driver should enter system settings with the vehicle at a stand- still and operate the system only when roadand traffic conditions permit. Always pay
full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approx-
imately 14 m) every second. G
WARNING
Always select a volume that allows you to
still hear ambient sound in your immediate vicinity (e.g. horns, emergency rescue
vehicles, police vehicles, etc.). You could
otherwise cause an accident. G
WARNING
If you wish to have an audio system other
than an original smart audio system fitted
in your vehicle, please always have the nec- essary work performed at an authorized
smart center.
This is particularly important if your
vehicle is fitted with a radio preinstalla-
tion. Improper connection can result in the
failure of important vehicle functions,
thereby endangering the operating safety
of your vehicle and thus your own safety and that of other people.
The following pages contain a brief
description of the audio systems available for the coupé and cabriolet.
The devices are described with their full
complement of equipment. The description
for your individual equipment specifica-
tion applies.
Please refer to the separate operating
instructions for detailed functions. Audio system*
95>> Controls.
* optional Z

:
USB socket
; AUX socket smart surround sound system*
The smart surround sound system supple-
ments the existing speakers with more
powerful and additional speakers (includ- ing a digital amplifier in the passenger
footwell and a passive subwoofer). Driving systems
Cruise control*
The cruise control maintains the speed you set for your vehicle automatically. On
downhill grades, the cruise control does
not brake the vehicle via the brake system.
The cruise control can only use the braking power of the engine. You must apply the
brakes yourself in order to reduce the
vehicle speed. The cruise control will then
be canceled. G
WARNING
The cruise control is a convenience system designed to assist the driver during vehi-
cle operation. The cruise control cannot
take road, traffic, and weather conditions
into account. The driver is and must always
remain responsible for the vehicle’s speed and for safe brake operation. Do not use the cruise control
R if the road, traffic, and weather condi-
tions do not make it advisable to travel at
a constant speed
R on slippery roads
Rapid changes in tire traction can result
in wheel spin and loss of control.
R when driving in fog
The use of the cruise control is recommen-
ded for driving at a constant speed for
extended periods of time.
With the cruise control is activated and a
speed set, the following message appears
in the multifunction display: U.S. vehicles
:
Cruise control activated
; Set speed Canada vehicles
:
Cruise control activated
; Set speed
The cruise control is operated via buttons
on the steering wheel. Driving systems
97>> Controls.
* optional Z

For more information on tire load rating
(Y page 140).
For information on calculating total and
cargo load capacities (Y page 134).Direction of rotation
Unidirectional tires offer added advan-
tages, such as better hydroplaning per-
formance. To benefit, however, you must
make sure the tires rotate in the direction
specified.
An arrow on the sidewall indicates the
intended direction of rotation (spinning)
of the tire. Tire care and maintenance
G
WARNING
Regularly check the tires for damage. Dam- aged tires can cause tire inflation pres-
sure loss. As a result, you could lose control
of your vehicle.
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
Check the tire inflation pressure at least
once a month. For more information on
checking tire inflation pressure, see
“Recommended tire inflation pressure”
(Y page 128).
Tire inspection Every time you check the tire inflation
pressure, you should also inspect your
tires for the following
R excessive treadwear (Y page 137)
R cord or fabric showing through the tire’s
rubber
R bumps, bulges, cuts, cracks or splits in
the tread or side of the tire
Replace the tire if you find any of the above conditions. Life of tire G
WARNING
Tires should be replaced after 6 years,
regardless of the remaining tread.
The service life of a tire is dependent upon varying factors including but not limited
to
R driving style
R tire inflation pressure
R distance driven
Tread depth G
WARNING
Although the applicable federal motor
vehicle safety laws consider a tire to be
worn when the treadwear indicators (TWI)
become visible at approximately 1
/ 16 in
(1.6 mm), we recommend that you do not allow your tires to wear down to that level. As
tread depth approaches 1
/ 8 in (3 mm), the
adhesion properties on a wet road are
sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction var- ies widely.
Do not allow your tires to wear down too far. Adhesion properties on wet roads are
sharply reduced at tread depths of less than
1 / 8 in (3 mm).
Treadwear indicators (TWI) are required by law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately 1
/ 16 in (1.6 mm), at which point the
tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
Summer tires 1
/ 8 in (3 mm)
Winter tires 1
/ 6 in (4 mm) Tires and wheels
137>> Operation. Z

Treadwear indicator
:appears as a solid
band across the tread.
Storing tires !
Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact with oil, grease and fuels.
Cleaning tires !
Never use a round nozzle to power wash
tires. The intense jet of water can result in damage to the tire.
Always replace a damaged tire. Uniform Tire Quality Grading Stand-
ards
The Uniform Tire Quality Grading is a U.S.
Government requirement designed to give
drivers consistent and reliable informa-
tion regarding tire performance. Tire
manufacturers are required to grade tires
based on three performance factors: tread- wear
:, traction ;, and temperature
resistance =. Although not a Government
of Canada requirement, all tires made for
sale in North America have these grades
branded on the sidewall.
i For illustration purposes only. Actual
data on tires are specific to each vehicle and may vary from data shown in above
illustration.
Quality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example: Treadwear Traction Temperature
200 AA A
All passenger car tires must conform to
federal safety requirements in addition to
these grades.
Treadwear The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified U.S. government test course. For example, a tire graded 150 would wear one
and one-half (1 1
/ 2 ) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving hab-
its, service practices and differences in
road characteristics and climate.
Traction G
WARNING
The traction grade assigned to this tire is based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics. 138
Tires and wheels>> Operation.

The traction grades, from highest to low-
est, are AA, A, B, and C. Those grades rep-
resent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perform-
ance.
Temperature G
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive load-
ing, either separately or in combination,
can cause excessive heat build-up and pos- sible tire failure.
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance to the generation of heat and its ability todissipate heat when tested under control-
led conditions on a specified indoor lab-
oratory test wheel. Sustained high temper- ature can cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to sudden
tire failure. The grade C corresponds to a
level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B
and A represent higher levels of perform-
ance on the laboratory test wheel than the
minimum required by law. Rotating tires
G
WARNING
Do not rotate front and rear wheels as they
have different dimensions, e.g. rim size,
wheel offset etc. Otherwise, the handling
can be affected and you could endanger
yourself and others. Thoroughly clean the mounting face of the
wheels and brake discs, i.e. the inner side of the wheels/tires each time the wheels/
tires are changed. Check for and ensure
proper tire inflation pressure. G
WARNING
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
81 lb‑ft (110 Nm).
Only use genuine smart wheel bolts speci-
fied for your vehicle’s rims.
For information on wheel change, see “Flat
tire” (Y page 187). Tire labeling
Besides tire name (sales designation) and
manufacturer name, a number of markings
can be found on a tire.
Following are some explanations for the
markings on your vehicle’s tires: :
Uniform Quality Grading Standards
(Ypage 138)
; DOT, Tire Identification Number (TIN)
(Ypage 142)
= Maximum tire load (Y page 136)
? Maximum tire inflation pressure
(Ypage 133) Tires and wheels
139>> Operation. Z

R
Remove unnecessary loads.
R Have all maintenance work performed at
the intervals specified in the Mainte-
nance Booklet and as required by the
Maintenance System. Contact an author-
ized electric drive smart center.
Energy consumption is also increased by
driving in stop-and-go traffic, on short
trips, and in hilly areas. Tires
G
WARNING
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has occur- red, you should turn on the hazard warning
flashers, carefully slow down, and drive
with caution to an area which is a safe dis-
tance from the road.
Inspect the tires and the vehicle underbody for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the nearest smart center or tire dealer for
repairs.
Treadwear indicators (TWI) are required by law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately 1
/ 16 in (1.6 mm), at which point the
tire is considered worn and should be
replaced.
The treadwear indicator appears as a solid
band across the tread. G
WARNING
Although the applicable federal motor
vehicle safety laws consider a tire to be
worn when the treadwear indicators (TWI)
become visible at approximately 1
/ 16 in
(1.6 mm), we recommend that you do not allow your tires to wear down to that level. As
tread depth approaches 1
/ 8 in (3 mm), the
adhesion properties on a wet road are
sharply reduced. Depending upon the weather and/or road
surface (conditions), the tire traction var- ies widely.
Specified tire inflation pressures must be maintained. This applies particularly if
the tires are subject to high loads (e.g.
high speeds, heavy loads, high ambient
temperatures). G
WARNING
Do not drive with a flat tire. A flat tire will affect your ability to steer or brake and maycause you to lose control of the vehicle.
Continued driving with a flat tire or driv-
ing at high speed with a flat tire will cause
excessive heat build-up and possibly a
fire.
For more information, see “Tires and
wheels” (Y page 127). Hydroplaning
Depending on the depth of the water layer
on the road, hydroplaning may occur
resulting in a loss of control, even at low
speeds and with new tires. Reduce vehicle
speed, avoid track grooves in the road and
apply brakes cautiously when it is raining. Tire traction
The safe speed on a wet, snow covered or icy
road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside temperatures are close to the freezing
point. G
WARNING
If ice has formed on the road, tire traction will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
smart recommends winter tires (Y page 146)
with a minimum tread depth of approx- 150
Driving instructions>> Operation.