check engine light Hyundai Equus 2012 Owner's Guide

Driving your vehicle
24 5
ESP operation
ESP ON condition
• When the engine start/stop
button is turned ON, ESP and
ESP OFF indicator lights illu-
minate for approximately 3
seconds, then ESP is turned
on.
• Press the ESP OFF button for
at least half a second after
turning the engine start/stop
button ON to turn ESP off.
(ESP OFF indicator will illumi-
nate). To turn the ESP on,
press the ESP OFF button
(ESP OFF indicator light will
go off).
• When starting the engine,
you may hear a slight ticking
sound. This is the ESP per-
forming an automatic system
self-check and does not indi-
cate a problem.When operating
When the ESP is in operation,
ESP indicator light blinks.
• When the Electronic Stability
Program is operating proper-
ly, you can feel a slight pulsa-
tion in the vehicle. This is only
the effect of brake control and
indicates nothing unusual.
• When moving out of the mud
or slippery road, the engine
rpm (revolution per minute)
may not be increased even if
you press the accelerator
pedal deeply. This is to main-
tain the stability and traction
of the vehicle and does not
indicate a problem.
ESP operation off
ESP OFF state
• To cancel ESP operation,
press the ESP OFF button for
more than 0.5 second. (ESP
OFF indicator light illumi-
nates).
• If the engine stops when ESP
is off, ESP remains off. Upon
restarting the engine, the
ESP will be automatically
turned on again.
Indicator light
When the engine start/stop button is
turned ON, the indicator light illuminates,
then goes off if ESP system is operating
normally.
The ESP indicator light blinks whenever
ESP is operating.
The ESP OFF indicator light comes on
when either the ESP is turned off with the
button.
-
■ESP indicator light (blinks)
■ ESP OFF indicator light (comes on)

Driving your vehicle
30 5
ECS (Electronic Controlled
Suspension) Malfunction indicator
The ECS malfunction indicator will illumi-
nate when the engine start/stop button is
turned to the ON position, but should go
off after approximately 3 seconds. If the
warning light does not come on, or con-
tinuously remains on after coming on for
about 3 seconds when you turn the
engine start/stop button to the ON posi-
tion, the ECS is not working properly.
If it comes on while driving, ECS is not
working properly.
Take your vehicle to an authorized
HYUNDAI dealer and have the system
checked.The ECS malfunction indicator may illu-
minate when the ESP indicator comes on
to indicate that the ESP is not working
properly, but it does not indicate malfunc-
tion of the ECS.
✽NOTICE
If the battery is discharged or if you
push the SPORT button or the vehicle
height control button repeatedly in
short time, the ECS malfunction indica-
tor may illuminate to protect the system.
CAUTION
If the ECS malfunction indicator
illuminates when there is no air in
the suspension, the vehicle height
will be very lower, so do not drive to
protect the vehicle from the projec-
tions on the surface of the ground.
Take your vehicle to an authorized
HYUNDAI dealer by towing the vehi-
cle and have the system checked.
You should tow the vehicle as the
picture.
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Driving your vehicle
32 5
➀CRUISE indicator
➁SET 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)
and below approximately 180 km/h (113
mph).
✽NOTICE
• During normal cruise control opera-
tion, when the SET switch is activated
or reactivated after applying the
brakes, the cruise control will ener-
gize after approximately 3 seconds.
This delay is normal.
• To activate cruise control, depress the
brake pedal at least once after turning
the ignition switch to the ON position
or starting the engine. This is to check
if the brake switch which is important
part to cancel cruise control is in nor-
mal condition.
CRUISE CONTROL SYSTEM (IF EQUIPPED)
WARNING
• If the cruise control is left on,
(CRUISE indicator light in the
instrument cluster illuminated)
the cruise control can be activat-
ed unintentionally. Keep the
cruise control system off
(CRUISE indicator light 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.
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535
Driving your vehicle
• Operate the EPB switch. Do not oper-
ate the parking brake while driving
except in an emergency situation.
Each of these actions will cancel cruise
control operation (the SET indicator light
in the instrument cluster will go off), but it
will not turn the system off. If you wish to
resume cruise control operation, push
the RES+ switch 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
switch was used to cancel cruising speed
and the system is still activated, the most
recent set speed will automatically
resume when the RES+ switch is
pushed.
It will not resume, however, if the vehicle
speed has dropped below approximately
40 km/h (25 mph).
✽NOTICE
Always check the road conditions when
pressing the RES+ switch to resume the
speed.
To turn cruise control off, do one
of the following:
• Push the CRUISE button (the CRUISE
indicator light in the instrument cluster
will go off).
• Turn the engine start/stop button off.
Both of these actions will cancel the
cruise control operation. If you want to
resume the cruise control operation,
repeat the steps provided in “To set
cruise control speed” on the previous
page.
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Driving your vehicle
36 5
➀CRUISE indicator
➁SET indicator
➂Set speed
➃Vehicle-to-vehicle distance
The smart cruise control system allows
you to program the vehicle to maintain a
constant speed and distance detecting
the vehicle ahead without depressing the
accelerator pedal.
✽NOTICE
• During normal smart cruise control
operation, when the SET switch is
activated or reactivated after applying
the brakes, the smart cruise control
will energize after approximately 3
seconds. This delay is normal.
• To activate smart cruise control,
depress the brake pedal at least once
after turning the ignition switch to the
ON position or starting the engine. This
is to check if the brake switch which is
important part to cancel smart cruise
control is in normal condition.
SMART CRUISE CONTROL SYSTEM (IF EQUIPPED)
WARNING
• If the smart cruise control is left
on, (CRUISE indicator light in the
instrument cluster illuminated)
the smart cruise control can be
activated unintentionally. Keep
the smart cruise control system
off (CRUISE indicator light OFF)
when the smart cruise control is
not in use, to avoid inadvertently
setting a speed.
• Use the smart cruise control sys-
tem only when traveling on open
highways in good weather.
• Do not use the smart cruise con-
trol when it may not be safe to
keep the car 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 smart cruise control
system.
(Continued)
(Continued)
• Be careful when driving downhill
using the smart cruise control
system, which may increase the
vehicle speed.
• The smart cruise control system
is not a substitute for safe driving
practices but a convenience
function only. It is the responsi-
bility of the driver to always
check the speed and distance to
the vehicle ahead.
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539
Driving your vehicle
• Decreasing the vehicle speed to less
than approximately 10km/h (6.2mph)
as the vehicle in front of you.
• Accelerating the vehicle speed to more
than approximately 180km/h
(113mph).
• The ESP is turned off.
• The sensor or the cover is stained with
foreign matter.
Each of these actions will cancel smart
cruise control operation (the SET indica-
tor light, set speed and vehicle to vehicle
distance on the LCD screen will go out),
but it will not turn the system off. If you
wish to resume smart cruise control
operation, push the RES+ switch located
on your steering wheel. You will return to
your previously preset speed.
To resume cruise control set
speed:
If any method other than the CRUISE
switch was used to cancel cruising speed
and the system is still activated, the most
recent set speed will automatically
resume when the RES+ switch is
pushed. It will not resume, however, if the
vehicle speed has dropped below
approximately 10 km/h (6.2 mph) when
the sensor detects the vehicle ahead or if
the vehicle speed has dropped below
approximately 30 km/h (18.6 mph) when
there is no vehicle in front of your vehicle.
✽NOTICE
Always check the road conditions when
pressing the RES+ switch to resume the
speed.
To turn cruise control off, do one
of the following:
• Push the CRUISE button (the CRUISE
indicator light in the instrument cluster
will go out).
• Turn the engine off.
Both of these actions cancel smart cruise
control operation. If you want to resume
smart cruise control operation, repeat
the steps provided in “To set cruise con-
trol speed” on the previous page.CAUTION
If the sensor cover is dirty or
obstructed, the smart cruise control
operation will cancel automatically.
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Driving your vehicle
46 5
This system detects the lane with the
sensor at the front windshield and warns
you when your vehicle leaves the lane.To operate the LDWS, pull the switch or
press the switch with the engine
start/stop button in the ON position. The
indicator illuminates on the cluster. To
cancel the LDWS, pull the switch or
press the switch again.
LANE DEPARTURE WARNING SYSTEM (LDWS) (IF EQUIPPED)
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WARNING
• The LDWS does not make the
vehicle change lanes. It is the dri-
ver's responsibility to always
check the road conditions.
• Do not turn the steering wheel
suddenly, when the LDWS warns
you that your vehicle is leaving
the lane.
• If the sensor can not detect the
lane or if the vehicle speed does
not exceed 60km/h, the LDWS
won't warn you even though vehi-
cle leaves the lane.
• If your vehicle has window tint or
other types of coating on the
front windshield, the LDWS may
not work properly.
• Do not let water or any kind of liq-
uid come in contact with the
LDWS sensor.
• Do not remove the LDWS parts
and do not affect the sensor by a
strong impact.
• Do not put objects that reflect
light on the dash board.
• Always check the road conditions
because you may not hear the
warning chime because of audio,
and external conditions.
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Type AType B

Driving your vehicle
54 5
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
miles (kilometers) you can get from a gal-
lon (liter) of fuel. To operate your vehicle
as economically as possible, use the fol-
lowing driving suggestions to help save
money in both fuel and repairs:
• Drive smoothly. Accelerate at a moder-
ate rate. Don't make "jack-rabbit" starts
or full-throttle shifts and maintain a
steady cruising speed. Don't race
between stoplights. Try to adjust your
speed to that of the other traffic so you
don't have to change speeds unneces-
sarily. Avoid heavy traffic whenever
possible. Always maintain a safe dis-
tance from other vehicles so you can
avoid unnecessary braking. This also
reduces brake wear.
• Drive at a moderate speed. The faster
you drive, the more fuel your car uses.
Driving at a moderate speed, especial-
ly on the highway, is one of the most
effective ways to reduce fuel consump-
tion.• Don't "ride" the brake pedal. This can
increase fuel consumption and also
increase wear on these components.
In addition, driving with your foot rest-
ing 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 car in good condition. For
better fuel economy and reduced
maintenance costs, maintain your car
in accordance with the maintenance
schedule in section 7. If you drive your
car in severe conditions, more frequent
maintenance is required (see section 7
for details).• Keep your car 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 car. This extra
weight can result in increased fuel con-
sumption and also contribute to corro-
sion.
• Travel lightly. Don't carry unnecessary
weight in your car. Weight reduces fuel
economy.
• Don't 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.
• 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.
• Don't "lug" or "over-rev" the engine.
Lugging is driving too slowly in too high
a gear resulting in the 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.
ECONOMICAL OPERATION

563
Driving your vehicle
To keep locks from freezing
To keep the locks from freezing, squirt an
approved de-icer fluid or glycerine into
the key opening. If a lock is covered with
ice, squirt it with an approved de-icing
fluid to remove the ice. If the lock is
frozen internally, you may be able to thaw
it out by using a heated key. Handle the
heated key with care to avoid injury.
Use approved window washer
anti-freeze in system
To keep the water in the window washer
system from freezing, add an approved
window washer anti-freeze solution in
accordance with instructions on the con-
tainer. Window washer anti-freeze is
available from an authorized HYUNDAI
dealer and most auto parts outlets. Do
not use engine coolant or other types of
anti-freeze as these may damage the
paint finish.
Don't let your parking brake
freeze
Under some conditions your parking
brake can freeze in the engaged position.
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 the parking
brake may freeze, apply it only temporar-
ily while you put the gear shift lever in P
and block the rear wheels so the vehicle
cannot roll. Then release the parking
brake.
Don't let ice and snow accumu-
late underneath
Under some conditions, snow and ice
can build up under the fenders and inter-
fere with the steering. When driving in
severe winter conditions where this may
happen, you should periodically check
underneath the car to be sure the move-
ment of the front wheels and the steering
components is not obstructed.
Carry emergency equipment
Depending on the severity of the weath-
er, you should carry appropriate emer-
gency equipment. Some of the items you
may want to carry include tire chains, tow
straps or chains, flashlight, emergency
flares, sand, a shovel, jumper cables, a
window scraper, gloves, ground cloth,
coveralls, a blanket, etc.

63
What to do in an emergency
4. When changing a flat tire, follow the
instruction provided later in this sec-
tion.
If engine stalls while driving
1. Reduce your speed gradually, keeping
a straight line. Move cautiously off the
road to a safe place.
2. Turn on your emergency flashers.
3. Try to start the engine again. If your
vehicle will not start, contact an
authorized HYUNDAI dealer or seek
other qualified assistance.
If engine doesn't turn over or
turns over slowly
1. Be sure the shift lever is in N (Neutral)
or P (Park) and the emergency brake
is set.
2. Check the battery connections to be
sure they are clean and tight.
3. Turn on the interior light. If the light
dims or goes out when you operate the
starter, the battery is discharged.
4. Check the starter connections to be
sure they are securely tightened.
5. Do not push or pull the vehicle to start
it. See instructions for "Jump starting".
If engine turns over normally but
does not start
1. Check fuel level.
2. With the engine start/stop button in the
OFF position, check all connectors at
the ignition coils and spark plugs.
Reconnect any that may be discon-
nected or loose.
3. If the engine still does not start, call an
authorized HYUNDAI dealer or seek
other qualified assistance.
IF THE ENGINE WILL NOT START
WARNING
If the engine will not start, do not
push or pull the vehicle to start it.
This could result in a collision or
cause other damage.