2010 Hyundai Equus check engine light

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Driving your vehicle
Check the brake warning light by turning
the engine start/stop button ON (do not
start the engine). This light will be illumi-
nated when the parking brake is applied
with the engine start/stop button in the
START or ON position.
Before driving, be sure the parking brake
is fully released and the brake warning
light is off.
If the brake warning light remains on
after the parking brake is released while
the engine is running, there may be a
malfunction in the brake system.
Immediate attention is necessary.
If at all possible, cease driving the vehi-
cle immediately. If that is not possible,
use extreme caution while operating the
vehicle and only continue to drive the
vehicle until you can reach a safe loca-tion.EPB malfunction indicator
This warning light illuminates if the
engine start/stop button is turned to the
ON position and goes off in approximate-
ly 3 seconds if the system is operation
normally. If the EPB malfunction indicator remains
on, comes on while driving, or does not
come on when the engine start/stop but-
ton is turned to the ON position, this indi-
cates that the EPB may have malfunc-tioned.
If this occurs, have your vehicle checked
by an authorized HYUNDAI dealer as
soon as possible.The EPB 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 a mal-
function of the EPB.
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Driving your vehicle
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5
ESP operation
ESP ON condition
button is turned ON, ESP and ESP OFF indicator lights illu-
minate for approximately 3
seconds, then ESP is turnedon.
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 willgo off).
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.
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.
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
press the ESP OFF button for
more than 0.5 second. (ESPOFF indicator light illumi-nates).
is off, ESP remains off. Upon
restarting the engine, theESP 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
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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 inthe suspension, the vehicle height
will be very lower, so do not drive toprotect the vehicle from the projec-tions on the surface of the ground.
Take your vehicle to an authorizedHYUNDAI 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
Operating the EPB switch. Do notoperate 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 itwill not turn the system off. If you wish toresume cruise control operation, push
the RES+ switch located on your steering wheel. You will return to your previouslypreset speed.
To resume cruising speed at
more than approximately 40 km/h(25 mph):
If any method other than the cruise
ON/OFF switch was used to cancel cruis-
ing speed and the system is still activat-ed, the most recent set speed will auto-
matically resume when the RES+ switchis pushed.
It will not resume, however, if the vehicle
speed has dropped below approximately40 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 ON/OFF button (the CRUISE indicator light in the instru- ment 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 previouspage.
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539
Driving your vehicle
Decreasing the vehicle speed to lessthan 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 vehicledistance on the LCD screen will go out),but it will not turn the system off. If youwish to resume smart cruise control
operation, push the RES+ switch locatedon your steering wheel. You will return toyour previously preset speed.
To resume cruising speed at
more than approximately 10 km/h(6.2 mph):
If any method other than the cruise
ON/OFF switch was used to cancel cruis-
ing speed and the system is still activat-ed, the most recent set speed will auto-
matically resume when the RES+ switchis pushed.
It will not resume, however, if the vehicle
speed has dropped below approximately10 km/h (6.2 mph) when the sensor
detects the vehicle ahead or if the vehicle
speed has dropped below approximately30 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 ON/OFF button (the CRUISE indicator light in the instru- ment 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.OVI059030
CAUTION
If the sensor cover is dirty orobstructed, the smart cruise control
operation will cancel automatically.

Driving your vehicle
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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 driver's
responsibility to always check
the road conditions.
Do not turn the steering wheel suddenly, when the LDWS warns
that your vehicle 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.
Prevent the LDWS sensor from water or any liquid.
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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Driving your vehicle
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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 leastonce 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 carin accordance with the maintenance
schedule in section 7. If you drive your
car in severe conditions, more frequentmaintenance 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.
ECONOMICAL OPERATION

561
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. Donot use engine coolant or other types of
anti-freeze as these may damage thepaint 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.