check engine Hyundai Equus 2015 Service Manual

547
Driving your vehicle
✽ NOTICE
• When you drive over 70km/h, you
may not select the HIGH mode.
• Do not operate ECS when the air
filter of the compressor in the
lower part of the vehicle sinks
under the water.
In draft of water into the compres-
sor may happen, and ECS may not
operate normally.
ECS (electronic controlled
suspension) malfunction
warning message
If ECS malfunction warning message
comes on while driving, ECS is not
working properly.
We recommend that the system be
checked by an authorized HYUNDAI
dealer.
✽ NOTICE
• Make sure there are no objects
under the vehicle before changing
the vehicle height.
• A click sound may be heard while
operating ECS, but these condi-
tions are normal and indicate that
ECS is functioning properly.
• Depending on the outside temper-
ature the vehicle height may be
different.
• When the vehicle is parked with
one side of the vehicle lifted or
vehicle speed is suddenly acceler-
ated/decelerated or the steering
wheel is suddenly turned, the
height may not temporarily be
adjusted. This is to protect the sys-
tem.
• When one side of the vehicle was
lifted with a jack, the height may
not temporarily be adjusted. The
ECS will operate normally when
the engine is turned on again or
when the vehicle is accelerated.
• When the vehicle is not driven for
a long period of time, vehicle
height may get low. The ECS will
operate normally when the engine
is turned on.
OVIEDI3953

577
Driving your vehicle
Malfunction indicator
• The VSM OFF indicator will illumi-
nate when the engine start/stop
button is turned ON, but should go
off after approximately 3 seconds.
If the indicator does not come on,
or continuously remains on after
coming on for about 3 seconds
when you turn the engine
start/stop button to the ON posi-
tion, or if the indicator comes on
while driving, the AVSM is not
working properly. We recommend
that the system be checked by an
authorized HYUNDAI dealer.
• The VSM OFF indicator may illumi-
nate when the ESC indicator or
SCC indicator comes on, but it
does not indicate malfunction of
the AVSM.
WARNING
The AVSM is not a substitute for
safe driving practices but a sup-
plementary function only. It is
the responsibility of the driver
to always check the speed and
the distance to the vehicle
ahead.
WARNING
• Even if there is a malfunction
to the brake operating of the
AVSM, when you depress the
brake pedal, the brake is oper-
ating normally. But, the AVSM
brake operating does not
operate even in certain haz-
ardous situations.
• The AVSM is designed to
function above approximately
15 km/h (9.3 mph) and below
approximately 180 km/h (111.8
mph).
• The AVSM does not react to
- Persons or animals.
- Oncoming vehicles in the
opposite lane or the vehicle
in the intersection.
- Stopped objects.
• The AVSM can not detect the
objects certainly, when:
- The sensors are stained with
dirt or covered.
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(Continued)
- There is heavy rain or heavy
snow.
- There is interference by elec-
tromagnetic waves.
- There are strong radar
reflections.
- Driving in curve.
- Driving uphill or downhill.
- Driving in areas under con-
struction.
- The object ahead is very nar-
row such as motorcycles or
bicycles.
- The vehicle cuts in suddenly.
• The AVSM brake operating
does not operates, if the driv-
er does not release the accel-
erator pedal or does not oper-
ate the brake pedal.

Driving your vehicle
84 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 gallon (liter) of fuel. To operate
your vehicle as economically as pos-
sible, use the following driving sug-
gestions to help save money in both
fuel and repairs:
• Drive smoothly. Accelerate at a
moderate rate. Don't make "jack-
rabbit" starts or full-throttle shifts
and maintain a steady cruising
speed. Don't race between stop-
lights. 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
distance from other vehicles so
you can avoid unnecessary brak-
ing. 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, especially on the highway,
is one of the most effective ways to
reduce fuel consumption.• Don't "ride" the brake 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 con-
sequences.
• Take care of your tires. Keep them
inflated to the recommended pres-
sure. Incorrect inflation, either too
much or too little, results in unnec-
essary tire wear. Check the tire
pressures at least once a month.
• Be sure that the wheels are
aligned correctly. Improper align-
ment can result from hitting curbs
or driving too fast over irregular
surfaces. Poor alignment 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, main-
tain your car in accordance with
the maintenance schedule in sec-
tion 7. If you drive your car in
severe conditions, more frequent
maintenance is required (see sec-
tion 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
consumption and also contribute to
corrosion.
• Travel lightly. Don't carry unneces-
sary 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

Driving your vehicle
90 5
Fuel, engine coolant and engine
oil
High speed travel consumes more
fuel than urban motoring. Do not for-
get to check both engine coolant and
engine oil.
Drive belt
A loose or damaged drive belt may
result in overheating of the engine.
WARNING
• Underinflated or overinflated
tires can cause poor handling,
loss of vehicle control, and
sudden tire failure leading to
accidents, injuries, and even
death. Always check tires for
proper inflation before driv-
ing. For proper tire pressures,
refer to “Tires and wheels” in
section 8.
• Driving on tires with no or
insufficient tread is danger-
ous. Worn-out tires can result
in loss of vehicle control, col-
lisions, injury, and even death.
Worn-out tires should be
replaced as soon as possible
and should never be used for
driving. Always check the tire
tread before driving your car.
For further information and
tread limits, refer to “Tires and
wheels” in section 7.

591
Driving your vehicle
More severe weather conditions of
winter result in greater wear and
other problems. To minimize winter
driving problem, you should follow
these suggestions:
Snowy or icy conditions
To drive your vehicle in deep snow, it
may be necessary to use snow tires
or to install tire chains on your tires.
If snow tires are needed, it is neces-
sary to select tires equivalent in size
and type of the original equipment
tires. Failure to do so may adversely
affect the safety and handling of your
car. Furthermore, speeding, rapid
acceleration, sudden brake applica-
tions, and sharp turns are potentially
very hazardous practices.
During deceleration, use engine
braking to the fullest extent. Sudden
brake applications on snowy or icy
roads may cause skids to occur. You
need to keep sufficient distance
between the vehicle in operation in
front and your vehicle. Also, apply
the brake gently. It should be noted
that installing tire chains on the tire
will provide a greater driving force,
but will not prevent side skids.
✽NOTICE
Tire chains are not legal in all coun-
tries. Check the country laws before
fitting tire chains.
Snow tires
If you mount snow tires on your vehi-
cle, make sure they are radial tires of
the same size and load range as the
original tires. Mount snow tires on all
four wheels to balance your vehicle’s
handling in all weather conditions.
Keep in mind that the traction provid-
ed by snow tires on dry roads may
not be as high as your vehicle's orig-
inal equipment tires. You should drive
cautiously even when the roads are
clear. Check with the tire dealer for
maximum speed recommendations.
Do not install studded tires without
first checking local, state and munic-
ipal regulations for possible restric-
tions against their use.
WINTER DRIVING
WARNING- Snow tire
size
Snow tires should be equivalent
in size and type to the vehicle's
standard tires. Otherwise, the
safety and handling of your
vehicle may be adversely affect-
ed.
OVI053049N

Driving your vehicle
92 5
245/50R18 Tire chains
Since the sidewalls of radial tires are
thinner, they can be damaged by
mounting some types of snow chains
on them. Therefore, the use of snow
tires is recommended instead of
snow chains. Do not mount tire
chains on vehicles equipped with
aluminum wheels; snow chains may
cause damage to the wheels. If snow
chains must be used, use wire-type
chains with a thickness of less than
12 mm (0.47 in). Damage to your
vehicle caused by improper snow
chain use is not covered by your
vehicle manufacturers warranty.
Install tire chains only on the rear
tires.Chain installation
When installing chains, follow the
manufacturer's instructions and
mount them as tightly as you can.
Drive slowly with chains installed. If
you hear the chains contacting the
body or chassis, stop and tighten
them. If they still make contact, slow
down until it stops. Remove the
chains as soon as you begin driving
on cleared roads.
CAUTION
• Make sure the snow chains
are the correct size and type
for your tires. Incorrect snow
chains can cause damage to
the vehicle body and suspen-
sion and may not be covered
by your vehicle manufacturer
warranty. Also, the snow chain
connecting hooks may be
damaged from contacting
vehicle components causing
the snow chains to come
loose from the tire. Make sure
the snow chains are SAE
class “S” certified.
• Always check chain installa-
tion for proper mounting after
driving approximately 0.5 to 1
km (0.3 to 0.6 miles) to ensure
safe mounting. Retighten or
remount the chains if they are
loose.
WARNING
- Mounting chains
When mounting snow chains,
park the vehicle on level ground
away from traffic. Turn on the
vehicle Hazard Warning flashers
and place a triangular emer-
gency warning device behind
the vehicle if available. Always
place the vehicle in P (Park),
apply the parking brake and
turn off the engine before
installing snow chains.
OVI059051

Driving your vehicle
94 5
Chain installation
When installing the AutoSock (fabric
snow chain), follow the manufactur-
er's instructions and mount them as
tightly as you can. Drive slowly with
the AutoSock (fabric snow chain)
installed. If you hear the AutoSock
(fabric snow chain) contacting the
body or chassis, stop and tighten
them. If they still make contact, slow
down until it stops. Remove the
AutoSock (fabric snow chain) as
soon as you begin driving on cleared
roads.Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in section 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in section 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.CAUTION
• The AutoSock (fabric snow
chain) that are the wrong size
or improperly installed can
damage your vehicle's brake
lines, suspension, body and
wheels.
• Stop driving and retighten the
AutoSock (fabric snow chain)
any time you hear them hitting
the vehicle.
WARNING - Tire chains
• The use of the AutoSock (fab-
ric snow chain) may adversely
affect vehicle handling.
• Do not exceed 30 km/h (20
mph) or the AutoSock (fabric
snow chain) manufacturer’s
recommended speed limit,
whichever is lower.
• Drive carefully and avoid
bumps, holes, sharp turns, and
other road hazards, which may
cause the vehicle to bounce.
• Avoid sharp turns or locked-
wheel braking.
WARNING
- Mounting chains
When mounting the AutoSock
(fabric snow chain), park the
vehicle on level ground away
from traffic. Turn on the vehicle
Hazard Warning flashers and
place a triangular emergency
warning device behind the vehi-
cle if available. Always place the
vehicle in P (Park), apply the
parking brake and turn off the
engine before installing the
AutoSock (fabric snow chain).

595
Driving your vehicle
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
section 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check spark plugs and igni-
tion system
Inspect your spark plugs as
described in section 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
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 heat-
ed 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 instruc-
tions on the container. Window wash-
er 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 hap-
pen 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 temporarily
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 accu-
mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
car to be sure the movement of the
front wheels and the steering com-
ponents is not obstructed.

What to do in an emergency
4 6
IF THE ENGINE WILL NOT START
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 emer-
gency 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 dis-
charged.
4.Check the starter connections to
be sure they are securely tight-
ened.
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 con-
nectors at the ignition coils and
spark plugs. Reconnect any that
may be disconnected or loose.
3.If the engine still does not start, we
recommend that you call an
authorized HYUNDAI dealer or
seek other qualified assistance.
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 dam-
age.

65
What to do in an emergency
EMERGENCY STARTING
Connect cables in numerical order
and disconnect in reverse order.
✽NOTICE
Your vehicle has a battery in the
trunk room, but when you jump
start your vehicle, use the jumper
terminal in the engine room.
Jump starting
Jump starting can be dangerous if
done incorrectly. Therefore, to avoid
harm to yourself or damage to your
vehicle or battery, follow the jump
starting procedures. If in doubt, we
strongly recommend that you have a
competent technician or towing serv-
ice jump start your vehicle.
CAUTION
Use only a 12-volt jumper sys-
tem. You can damage a 12-volt
starting motor, ignition system,
and other electrical parts
beyond repair by use of a 24-
volt power supply (either two
12-volt batteries in series or a
24-volt motor generator set).
OVI063002
WARNING- Battery
Never attempt to check the elec-
trolyte level of the battery as
this may cause the battery to
rupture or explode causing seri-
ous injury.
WARNING - Battery
• Keep all flames or sparks
away from the battery. The
battery produces hydrogen
gas which may explode if
exposed to flame or sparks.
If these instructions are not
followed exactly, serious per-
sonal injury and damage to
the vehicle may occur! If you
are not sure how to follow this
procedure, seek qualified
assistance. Automobile bat-
teries contain sulfuric acid.
This is poisonous and highly
corrosive. When jump start-
ing, wear protective glasses
and be careful not to get acid
on yourself, your clothing or
on the vehicle.
• Do not attempt to jump start
the vehicle if the discharged
battery is frozen or if the elec-
trolyte level is low; the battery
may rupture or explode.
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