2015 Hyundai Equus air suspension

489
Features of your vehicle
Check SCC System (if equipped)
• This warning message illuminates
if there is a malfunction with the
advanced smart cruise control sys-
tem. We recommend that the vehi-
cle be inspected by an authorized
HYUNDAI dealer.
❈For more details, refer to
"Advanced Smart Cruise Control
System" in chapter 5.
Check SCC Radar (if equipped)
• This warning message illuminates
if the radar of the advanced smart
cruise control system or its cover is
stained. Remove the stains with a
soft cloth.
❈For more details, refer to
"Advanced Smart Cruise Control
System" in chapter 5.
CAUTION - ECS Warning
Message
• If the Electronic Controlled
Suspension (ECS) Warning
Message illuminates when
there is no air in the suspen-
sion, the vehicle height will be
very low. In this case, do not
drive the vehicle to protect it
from the projections on the
surface of the ground. We rec-
ommend that the vehicle be
inspected by an authorized
HYUNDAI dealer.
• When towing the vehicle, you
should follow the instruction
in "Electronic Controlled
Suspension (ECS)" of chapter
5.
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Driving your vehicle
46 5
ECS controls the vehicle suspension
automatically to maximize passenger
comfort by using the air spring in the
suspension.
You can also control the vehicle sus-
pension manually in NORMAL mode
or HIGH mode.
To control the vehicle height
• Push the vehicle height control but-
ton to select the HIGH mode that
makes the vehicle height be higher
than the NORMAL mode and the
indicator light on the vehicle height
control button will illuminate. It is
useful in a rough road.
• Push the vehicle height control but-
ton again to select the NORMAL
mode that makes the vehicle
height lower than the HIGH mode.
The indicator light in the vehicle
height control button will go off.
• When the vehicle stops with the
shift lever in P(Park) or N(Neutral),
you may change the vehicle height.
• When you drive under 70km/h, you
may select the HIGH mode.
• If the vehicle speed exceeds
70km/h while driving in the HIGH
mode, the NORMAL mode will be
selected automatically.• If the vehicle speed exceeds
120km/h while driving in NORMAL
mode, the LOW mode that is lower
than NORMAL mode will be select-
ed automatically. LOW mode can
not be selected manually.
• When you drive under 80km/h in
the LOW mode, the NORMAL
mode will be selected automatical-
ly.
• When the engine start/stop button
is turned off with the HIGH mode
selected, the HIGH mode will be
maintained.
It is to prevent damage under the
vehicle when parked in rough
roads.
• The height of the vehicle may be
adjusted after the engine start/stop
button is turned off for 2 hours/
5 hours/10 hours.
It is to compensate vehicle height
affected by outside temperature.
ELECTRONIC CONTROLLED SUSPENSION (ECS) (IF EQUIPPED)
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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.
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Driving your vehicle
48 5
✽ NOTICE
• If the battery is discharged, the
ECS malfunction warning mes-
sage may turn on to protect the
system.
• When the height is adjusted
repeatedly, the height may not
temporarily be adjusted for the
compressor overheats. This is to
prevent damage to related parts.
Towing your vehicle
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CAUTION
If the ECS malfunction message
illuminates when there is no air
in the suspension, the vehicle
height will be very low, so do
not drive to protect the vehicle
from the projections on the sur-
face of the ground. We recom-
mend that the system be
checked by an authorized
HYUNDAI dealer. You should tow
the vehicle as the picture.

625
What to do in an emergency
When towing your vehicle in an
emergency without wheel dollies :
1.Set the engine start/stop button in
the ACC position.
2.Place the shift lever in N (Neutral).
3.Release the parking brake.
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CAUTION
• Do not tow the vehicle with the
rear wheels on the ground as
this may cause damage to the
vehicle.
• Do not tow with sling-type
equipment. Use wheel lift or
flatbed equipment.
CAUTION
Failure to place the shift lever in
N (Neutral) may cause internal
damage to the transmission.
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 projections on the sur-
face of the ground.
We recommend that you take
your vehicle to an authorized
HYUNDAI dealer by towing the
vehicle and have the system
checked. You should tow the
vehicle as the picture.
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713
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
10: Rear differential oil should be changed anytime they have been submerged in water.
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
Steering gear rack, linkage and bootsIIIIIIII
Driveshaft and bootsIIII
Tire (pressure & tread wear)IIIIIIII
Front suspension ball jointsIIIIIIII
Bolt and nuts on chassis and bodyIIIIIIII
Air conditioner refrigerant (if equipped)IIIIIIII
Air conditioner compressor (if equipped)IIIIIIII
Climate control air filter (if equipped)RRRRRRRR
Automatic transmission fulidNo check, No service required
Exhaust systemIIII
Rear differential oil *10II
Propeller shaftIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

Maintenance
14 7
Maintenance itemMaintenance
operationMaintenance intervalsDriving condition
Engine oil and
engine oil filterFor Middle EastREvery 5,000 km or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Except Middle EastREvery 7,500 km (5,000 miles)
or 6 months
Air cleaner filterIInspect more frequently
depending on the conditionC, E
Spark plugs RReplace more frequently
depending on the conditionA, B, H, I
Steering gear rack, linkage and bootsIInspect more frequently
depending on the conditionC, D, E, F, G
Automatic transmission fluidFor EuropeREvery 90,000 kmA, C, D, E, F, G, H, IExcept EuropeREvery 100,000 km
Front suspension ball jointsIInspect more frequently
depending on the conditionC, D, E, F, G
Disc brakes and pads, calipers and rotorsIInspect more frequently
depending on the conditionC, D, E, G, H
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following items must be serviced more frequently on cars mainly used under severe driving conditions.
Refer to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and if necessary, adjust, correct, clean or replace

Maintenance
18 7
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between “MIN” and “MAX” marks on
the side of the reservoir. Use only
hydraulic brake fluid conforming to
DOT 3 or DOT 4 specification.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Power steering pump, belt and
hoses
Check the power steering pump and
hoses for leakage and damage.
Replace any damaged or leaking
parts immediately. Inspect the power
steering belt (or drive belt) for evi-
dence of cuts, cracks, excessive
wear, oiliness and proper tension.
Replace or adjust it if necessary.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
(if equipped)
Check the air conditioning lines and
connections for leakage and dam-
age.
Brake discs, pads, calipers
and rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
For more information on checking
the pads or lining wear limit, refer to
the Hyundai web site.
(http://brakeman
ual.hmc.co.kr)
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.