brake HYUNDAI I40 2015 Repair Manual

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Driving your vehicle
Hill-start assist control (HAC)
A vehicle has the tendency to slip back
on a steep hill when it starts to go after
stopping. The Hill-start Assist Control
(HAC) prevents the vehicle from slipping
back by operating the brakes automati-
cally for about 2 seconds. The brakes are
released when the accelerator pedal is
depressed or after about 2 seconds.
✽ ✽NOTICE
• The HAC does not operate when the
transaxle shift lever is in the P (Park)
or N (Neutral) position.
• The HAC activates even though the ESP is off but it does not activate
when the ESP has malfunctioned.
Emergency Stop Signal (ESS)
(if equipped)
The Emergency Stop Signal system
alerts the driver behind by blinking the
stop light when the vehicle is braked rap-
idly and severely.
The system is activated when:
The vehicle suddenly stops (vehicle
speed is over 55km/h and the vehicle
deceleration at greater than 7 m/s
2)
The ABS is activating
When the vehicle speed is under 40 km/h
and the ABS deactivates or the sudden
stop situation is over, the stop light will
not blink. Instead, the hazard warning
flasher will turn on automatically.
The hazard warning flasher will turn off
when vehicle speed is over 10km/h after
the vehicle has stopped. Also, it will turn
off when the vehicle is driven at low
speed for some time. You can turn it off
manually by pushing the hazard warning
flasher switch.
WARNING
The HAC is activated only for about
2 seconds, so when the vehicle is
starting off always depress the
accelerator pedal.
CAUTION
The Emergency Stop Signal (ESS) system will not work if the hazardwarning flasher is already on.

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Good braking practices Check to be sure the parking brake is
not engaged and that the parking
brake indicator light is out before driv-
ing away.
Driving through water may get the brakes wet. They can also get wet
when the vehicle is washed. Wet
brakes can be dangerous! Your vehicle
will not stop as quickly if the brakes are
wet. Wet brakes may cause the vehicle
to pull to one side.
To dry the brakes, apply the brakes
lightly until the braking action returns to
normal, taking care to keep the vehicle
under control at all times. If the braking
action does not return to normal, stop
as soon as it is safe to do so and call
an authorized HYUNDAI dealer for
assistance.
Do not coast down hills with the vehicle out of gear. This is extremely haz-
ardous. Keep the vehicle in gear at all
times, use the brakes to slow down,
then shift to a lower gear so that
engine braking will help you maintain a
safe speed.
Do not "ride" the brake pedal. Resting your foot on the brake pedal while driv-
ing can be dangerous because it can
result in the brakes overheating and
losing their effectiveness. It also
increases the wear of the brake com-
ponents. If a tire goes flat while you are driving,
apply the brakes gently and keep the
vehicle pointed straight ahead while
you slow down. When you are moving
slowly enough for it to be safe to do so,
pull off the road and stop in a safe
place.
If your vehicle is equipped with an automatic transaxle, do not let your
vehicle creep forward. To avoid creep-
ing forward, keep your foot firmly on
the brake pedal when the vehicle is
stopped.
Be cautious when parking on a hill. Firmly engage the parking brake and
place the shift lever in P (automatic
transaxle) or in first or reverse gear
(manual transaxle). If your vehicle is
facing downhill, turn the front wheels
into the curb to help keep the vehicle
from rolling. If your vehicle is facing
uphill, turn the front wheels away from
the curb to help keep the vehicle from
rolling. If there is no curb or if it is
required by other conditions to keep
the vehicle from rolling, block the
wheels.
WARNING
Whenever you leave or park yourvehicle, always set the parking
brake as far as possible and fully
engage the vehicle's transaxle
into the P (Park) position. If the
parking brake is not fully
engaged, the vehicle may move
inadvertently and injure yourself
and others.
All vehicles should always have the parking brake fully engaged
when parking to avoid inadver-
tent movement of the vehicle
which can injure occupants or
pedestrians.

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Driving your vehicle
Under some conditions your parkingbrake can freeze in the engaged posi-
tion. This is most likely to happen when
there is an accumulation of snow or ice
around or near the rear brakes or if the
brakes are wet. If there is a risk that the
parking brake may freeze, apply it only
temporarily while you put the shift
lever in P (automatic transaxle) or in
first or reverse gear (manual transaxle)
and block the rear wheels so the vehi-
cle cannot roll. Then release the park-
ing brake.
Do not hold the vehicle on the upgrade with the accelerator pedal. This can
cause the transaxle to overheat.
Always use the brake pedal or parking
brake.

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1. Cruise indicator
2. Cruise set indicator
The cruise control system allows you to
program the vehicle to maintain a con-
stant speed without pressing the acceler-
ator pedal.
This system is designed to function
above approximately 40 km/h (25 mph).
✽ ✽
NOTICE
During normal cruise control operation,
when the SET switch is activated or
reactivated after applying the brakes,
the cruise control will energize after
approximately 3 seconds. This delay is
normal.
CRUISE CONTROL SYSTEM (IF EQUIPPED)
WARNING
If the cruise control is left on,
(cruise indicator light is illuminat-
ed), the cruise control can be
switched on accidentally. Keep
the cruise control system off
when the cruise control is not in
use, to avoid inadvertently set-
ting a speed.
Use the cruise control system only when traveling on open
highways in good weather.
Do not use the cruise control when it may not be safe to keep
the vehicle at a constant speed,
for instance, driving in heavy or
varying traffic, or on slippery
(rainy, icy or snow-covered) or
winding roads or over 6% up-hill
or down-hill roads.
Pay particular attention to the driving conditions whenever
using the cruise control system.
Be careful when driving downhill using the cruise control system,
which may increase the vehicle
speed.
CAUTION
During cruise-speed driving of amanual transaxle vehicle, do notshift into neutral without depress-ing the clutch pedal, since theengine will be overrevved. If thishappens, depress the clutch pedalor release the cruise control ON-OFF switch.
OVF051029
■Type A■Type B
■Type A■Type B OVF051028

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Driving your vehicle
Cruise control switch
CANCEL: Cancels cruise control opera-tion.
/ CRUISE : Turns cruise control sys- tem on or off.
RES+: Resumes or increases cruise
control speed.
SET-: Sets or decreases cruise control speed.
To set cruise control speed:
1. Press the cruise /CRUISE button
on the steering wheel, to turn the sys-
tem on. The cruise indicator light will
illuminate.
2. Accelerate to the desired speed, which must be more than 40 km/h (25 mph).
✽ ✽NOTICE - Manual transaxle
For manual transaxle vehicles, you
should depress the brake pedal at least
once to set the cruise control after start-
ing the engine.
3. Move the lever down (to SET-), and
release it at the desired speed. The
cruise set indicator light will illuminate.
Release the accelerator pedal at the
same time. The desired speed will
automatically be maintained.
On a steep grade, the vehicle may slowdown or speed up slightly while going downhill.
OVF051012
OVF051070
■Type B
■Type A
OVF051013
OVF051020
■Type B
■Type A
OVF051015
OVF051022
■Type B
■Type A

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Driving your vehicle
To cancel cruise control, do one
of the following:
Depress the brake pedal.
Depress the clutch pedal if equppedwith a manual transaxle.
Shift into N (Neutral) if equpped with an automatic transaxle.
Press the CANCEL switch located on the steering wheel.
Decrease the vehicle speed lower than the memory speed by 20 km/h (12
mph).
Decrease the vehicle speed to less than approximately 40 km/h (25 mph).
Each of these actions will cancel cruisecontrol operation (the cruise setindicator
light will go off), but it will not turn the system off. If you wish to resume cruisecontrol operation, move up the lever (toRES+) located on your steering wheel.You will return to your previously preset speed.
To resume cruising speed at
more than approximately 40 km/h
(25 mph):
If any method other than the cruise
/CRUISE button was used to cancel
cruising speed and the system is still
activated, the most recent set speed will
automatically resume when you move
the lever up (to RES+).
It will not resume, however, if the vehicle
speed has dropped below approximately
40 km/h (25 mph).
OVF051016
OVF051023
■Type B
■Type A
OVF051014
OVF051021
■Type B
■Type A

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A message will appear on the LCD dis-
play if the condition to activate the LKAS
is not satisfied. Also, an audible warning
will be heard. The warning will disappear
when the conditions are met. The system will be cancelled when:
Vehicle speed is below 60 km/h (37.3
mph) and over 150 km/h (93.2 mph).
Only one lane is detected.
Always turn on the turn signal to change lanes. If you change lanes
without the turn signal on, the steering
wheel might be controlled.
The hazard warning light is on.
The width of the lane is below 2.7 m and over 4.5 m.
ESP(Electronic Stability Program) and VSM(Vehicle stability management)
are activated.
When the system is on or after chang- ing a lane, drive in the middle of the
lane. If not, the system will not provide
the steering assist function.
The steering will not be assisted when you drive fast on a sharp curve.
The steering will not be assisted when you change lanes fast.
The steering will not be assisted when you brake suddenly.
DRIVER'S ATTENTION
The driver must be cautious in the
below situations for the system may not
assist the driver and may not work
properly.
• The lane is not visible due to snow,rain, stain, a puddle or many other
things.
• The brightness of the outside changes suddenly such as passing through a
tunnel.
• Not turning on the headlight or the light is weak even at night or in a tun-
nel.
• Difficult to distinguish the color of the lane maker from the road.
• Driving on a steep grade or a curve.
• Light reflects from the water on the road such as sunlight, streetlight or
the light of oncoming vehicles.
• The lens or windshield is stained with foreign matter.
• The sensor cannot detect the lane because of fog, heavy rain or heavy
snow.
• The surrounding of the inside rear view mirror temperature is high due
to direct light.
• The lane is very wide or narrow.
• The lane marker is damaged or indis- tinct.
OVF051065

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Driving your vehicle
ECONOMICAL OPERATION
Your vehicle's fuel economy depends
mainly on your style of driving, where you
drive and when you drive.
Each of these factors affects how many
kilometers (miles) you can get from a
liter (gallon) of fuel. To operate your vehi-
cle as economically as possible, use the
following driving suggestions to help
save money in both fuel and repairs:
Drive smoothly. Accelerate at a moder-ate rate. Do not make "jack-rabbit"
starts or full-throttle shifts and maintain
a steady cruising speed. Do not race
between stoplights. Try to adjust your
speed to the traffic so you do not have
to change speeds unnecessarily. Avoid
heavy traffic whenever possible.
Always maintain a safe distance from
other vehicles so you can avoid unnec-
essary braking. This also reduces
brake wear.
Drive at a moderate speed. The faster you drive, the more fuel your vehicle
uses. Driving at a moderate speed,
especially on the highway, is one of the
most effective ways to reduce fuel con-
sumption. Do not "ride" the brake or clutch pedal.
This can increase fuel consumption
and also increase wear on these com-
ponents. In addition, driving with your
foot resting on the brake pedal may
cause the brakes to overheat, which
reduces their effectiveness and may
lead to more serious consequences.
Take care of your tires. Keep them inflated to the recommended pressure.
Incorrect inflation, either too much or
too little, results in unnecessary tire
wear. Check the tire pressures at least
once a month.
Be sure that the wheels are aligned correctly. Improper alignment can
result from hitting curbs or driving too
fast over irregular surfaces. Poor align-
ment causes faster tire wear and may
also result in other problems as well as
greater fuel consumption. Keep your vehicle in good condition.
For better fuel economy and reduced
maintenance costs, maintain your vehi-
cle in accordance with the mainte-
nance schedule in section 7. If you
drive your vehicle in severe conditions,
more frequent maintenance is required
(see section 7 for details).
Keep your vehicle clean. For maximum service, your vehicle should be kept
clean and free of corrosive materials. It
is especially important that mud, dirt,
ice, etc. not be allowed to accumulate
on the underside of the vehicle. This
extra weight can result in increased
fuel consumption and also contribute
to corrosion.
Travel lightly. Do not carry unnecessary weight in your vehicle. Weight reduces
fuel economy.
Do not let the engine idle longer than necessary. If you are waiting (and not
in traffic), turn off your engine and
restart only when you're ready to go.

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Remember, your vehicle does not
require extended warm-up. After the
engine has started, allow the engine to
run for 10 to 20 seconds prior to plac-
ing the vehicle in gear. In very cold
weather, however, give your engine a
slightly longer warm-up period.
Do not "lug" or "over-rev" the engine. Lugging is driving too slowly in too
high a gear resulting engine bucking. If
this happens, shift to a lower gear.
Over-revving is racing the engine
beyond its safe limit. This can be avoid-
ed by shifting at the recommended
speeds.
Use your air conditioning sparingly. The air conditioning system is operat-
ed by engine power so your fuel econ-
omy is reduced when you use it.
Open windows at high speeds can reduce fuel economy.
Fuel economy is less in crosswinds and headwinds. To help offset some of
this loss, slow down when driving in
these conditions. Keeping a vehicle in good operating con-
dition is important both for economy and
safety. Therefore, have an authorized
HYUNDAI dealer perform scheduled
inspections and maintenance.
WARNING - Engine off dur-
ing motion
Never turn the engine off to coast
down hills or anytime the vehicle is
in motion. The power steering and
power brakes will not function
properly without the engine run-
ning. Instead, keep the engine on
and downshift to an appropriate
gear for engine braking effect. In
addition, turning off the ignition
while driving could engage the
steering wheel lock (if equipped)
resulting in loss of vehicle steering
which could cause serious injury
or death.

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Driving your vehicle
Hazardous driving conditions
When hazardous driving conditions are
encountered such as water, snow, ice,
mud, sand, or similar hazards, follow
these suggestions:
Drive cautiously and allow extra dis-tance for braking.
Avoid sudden braking or steering.
When braking with non-ABS brakes pump the brake pedal with a light up-
and-down motion until the vehicle is
stopped.
If stalled in snow, mud, or sand, use second gear. Accelerate slowly to
avoid spinning the drive wheels.
Use sand, rock salt, tire chains, or other non-slip material under the drive
wheels to provide traction when stalled
in ice, snow, or mud.
Reducing the risk of a rollover
This multi-purpose passenger vehicle is
defined as a Multi Purpose Vehicle
(MPV). MPV’s have higher ground clear-
ance and a narrower track to make them
capable of performing in a wide variety of
road applications. Specific design char-
acteristics give them a higher center of
gravity than ordinary vehicles. An advan-
tage of the higher ground clearance is a
better view of the road, which allows you
to anticipate problems. They are not
designed for cornering at the same
speeds as conventional passenger vehi-
cles. Due to this risk, driver and passen-
gers are strongly recommended to buck-
le their seat belts. In a rollover crash, an
unbelted person is more likely to die than
a person wearing a seat belt. There are
steps that a driver can make to reduce
the risk of a rollover. If at all possible,
avoid sharp turns or abrupt maneuvers,
do not load your roof rack with heavy
cargo, and never modify your vehicle in
any way.
SPECIAL DRIVING CONDITIONS
WARNING - Downshifting
Downshifting with an automatic
transaxle, while driving on slippery
surfaces can cause an accident.
The sudden change in tire speed
could cause the tires to skid. Be
careful when downshifting on slip-
pery surfaces.
WARNING - ABS
Do not pump the brake pedal on a
vehicle equipped with ABS.