air suspension Hyundai Equus 2016 Owner's Manual

The ECS automatically controls the
vehicle suspension to maximize pas-
sengers' comfort with the air spring
and the controllable shock absorber.
You can also manually control the
vehicle height in the NORMAL or
HIGH mode.
To control the vehicle height
Press the vehicle height control but-
ton to select the HIGH mode that
makes the vehicle higher than the
NORMAL mode. The vehicle height
indicator will illuminate. It is useful on
a rough road.
Information
When the driving speed is over 42
mph (70 km/h), you cannot select the
HIGH mode. When the driving speed
exceeds 42 mph (70 km/h) in the
HIGH mode, the mode automatically
changes to the NORMAL mode. Repress the vehicle height control
button to select the NORMAL mode
that makes the vehicle height lower
than the HIGH mode. The vehicle
height indicator will go OFF.
Information
• Only when the vehicle stops with the
shift lever in P(Park) or N(Neutral),
the height control button is avail-
able.
• When the driving speed exceeds 99 mph (160km) in NORMAL mode,
the mode automatically changes to
the LOW mode. LOW mode cannot
be selected manually.
• When the driving speed is under 50 mph (80 km/h) in the LOW mode,
the mode automatically changes to
the NORMAL mode.
• When the Engine Start/Stop button is turned OFF in the HIGH mode,
the HIGH mode selection will be
maintained.
It is to prevent damage the bottom of
a vehicle when parking on a rough
road.
• Make sure there are no objects under the vehicle before changing
vehicle height.
• A click sound may be heard while operating the ECS. This is normal
and indicates that ECS properly
functions.
• Depending on the outside tempera- ture the vehicle height may be dif-
ferent.
• Do not press the Engine Start/Stop button while operating the ECS.
This could cause damage to the
ECS.
i
i
E EL
LE
E C
CT
T R
R O
O N
NI
IC
C
C
C O
O N
NT
TR
R O
O L
LL
LE
E D
D
S
S U
U S
SP
P E
EN
N S
SI
IO
O N
N
(
( E
E C
CS
S)
)
(
( I
IF
F
E
E Q
Q U
UI
IP
P P
PE
ED
D )
)
5-36
Driving your vehicle
OVI055116N

ECS (Electronic Controlled
Suspension) malfunction
warning message
When the ECS malfunction warning
message is displayed while driving,
the ECS does not properly function.
Have the system checked by an
authorized EQUUS dealer.
Information
• When the battery is discharged, orwhen either the SPORT button or
the vehicle height control button is
pressed repeatedly in a short time,
the ECS malfunction indicator may
illuminate to protect the system.
• When the height is adjusted repeat- edly, the height control may tem-
porarily stop due to the compressor
overheat. This is to prevent damage
to related parts. When the ECS malfunction mes-
sage is displayed with no air
inside the suspension, the vehicle
height may be very low. Thus, do
not drive the vehicle to protect it
from the projections on the sur-
face of the ground.
Take your vehicle to an authorized
EQUUS dealer by towing it and
have the system checked. You
should tow the vehicle as shown
in the picture.
When you load the vehicle onto the
tow truck, the loading angle(1)
should be smaller than 6°.
NOTICE
i
5-37
Driving your vehicle05
OVINDR5953
OVI055025N
OVI055026N

5-81
Driving your vehicle05
Overloading may damage yourvehicle. Repairs are not covered
by your warranty. Do not over-
load your vehicle.
Heavier suspension compo- nents for higher durability may
not change the weight capacity.
Ask your dealer to help you load
your vehicle the right way.
NOTICE
Overloading your vehicle mayoverheat the tires and cause
tire failure, possibly leading to
a crash.
Overloading your vehicle may increase a stopping distance,
possibly leading to a crash.
A crash, which is resulted from poor handling, vehicle
damage, tire failure, or a
longer stopping distance, may
result in a serious injury or
death.
WARNING
- Unsecured loads
Items you carry inside your
vehicle may hit and injure an
occupant in a sudden stop or
turn, or in a crash.
Put items in the trunk. Try toevenly spread the weight.
Never stack up items, like suitcases, inside the vehicle,
especially above the seat-
backs.
Do not leave an unsecured child restraint in your vehicle.
When you carry something inside the vehicle, secure it.
WARNING

When emergently towing your vehi-
cle without a wheel dolly:
1.Set the Engine Start/Stop Button inthe ACC position.
2.Place the shift lever in N (Neutral).
3.Release the parking brake. When the ECS malfunction indica-
tor illuminates with no air in the
suspension, the vehicle height is
very low. Thus, do not drive the
vehicle to protect it from any pro-
jections on the ground. Tow your
vehicle to an authorized EQUUS
dealer and have the system
checked. You should tow the vehi-
cle as shown in the illustration.
When loading the vehicle onto the
tow truck, the loading slope angle (1)
should be less than 6°.
NOTICE
6-21
What to do in an emergency06
Do not tow the vehicle, drag-
ging the rear wheels on the
ground. This may damage the
vehicle.
Do not tow with a sling-type equipment. Use a wheel lift or
a flatbed.
CAUTION
Failure to set the shift lever in
N(Neutral) may cause internal
damage of the transmission.
CAUTION
OVI065102N
OVI065103N
OVI065014N
OVI065013N

NORMAL MAINTENANCE SCHEDULE
The following maintenance procedures must be performed for good emission
control and performance.
Keep the records of all vehicle emission-system maintenance histories to pro-
tect your warranty. Between the driving mileage and period, follow the main-
tenance procedures in accordance with whichever occurs first.
7-9
Maintenance07
7,500 miles (12,000 km) or 6 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect power steering fluid
❑ Replace engine oil and filter (7,500 miles (12,000 km) or 12 months)\
❑ Add fuel additives *
1(7,500 miles (12,000 km) or 12 months)
15,000 miles (24,000 km) or 12 months
❑ Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pad, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pad
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect power steering fluid
❑ Inspect EHPS (Electronic Hydraulic Power Steering) motor pump and hoses
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace engine oil and filter (15,000 miles (24,000 km) or 24 months)
❑ Add fuel additives *
1(15,000 miles (24,000 km) or 24 months)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-
ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

NORMAL MAINTENANCE SCHEDULE (CONT.)
7-10
Maintenance
22,500 miles (36,000 km) or 18 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect power steering fluid
❑ Replace engine oil and filter (22,500 miles (36,000 km) or 36 months)\
❑ Add fuel additives *
1(22,500 miles (36,000 km) or 36 months)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-
ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
*
2: Fuel filter & Fuel tank air filter are considered to be maintenance free\
. However, regular inspection is still recommended, because the maintenance schedule depend\
s on the fuel
quality. When there are critical safety problems, such as fuel flow blocking, overflowing, power
loss, and hard starting, immediately replace the fuel filter regardless of maintenance sche\
d-
ule, and consult an authorized EQUUS dealer for further information.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
30,000 miles (48,000 km) or 24 months
❑Rotate tires
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect brake fluid
❑ Inspect fuel filter *
2
❑Inspect fuel lines, fuel hoses and connections
❑ Inspect fuel tank air filter *2
❑Inspect parking brake
❑ Inspect vapor hose and fuel filler cap, fuel tank
❑ Inspect power steering fluid
❑ Inspect EHPS (Electronic Hydraulic Power Steering) motor pump and hoses
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter (30,000 miles (48,000 km) or 48 months)
❑ Add fuel additives *
1(30,000 miles (48,000 km) or 48 months)

NORMAL MAINTENANCE SCHEDULE (CONT.)
7-11
Maintenance07
37,500 miles (60,000 km) or 30 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect rear differential oil *
3 (40,000 miles (64,000 km) or 48 months)
❑ Inspect power steering fluid
❑ Replace engine oil and filter (37,500 miles (60,000 km) or 60 months)\
❑ Add fuel additives *
1(37,500 miles (60,000 km) or 60 months)
45,000 miles (72,000 km) or 36 months
❑ Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect power steering fluid
❑ Inspect EHPS (Electronic Hydraulic Power Steering) motor pump and hoses
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace engine oil and filter (45,000 miles (72,000 km) or 72 months)\
❑ Add fuel additives *
1(45,000 miles (72,000 km) or 72 months)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-
ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
*
3: Rear differential oil should be refilled, when the rear differential is submerged in water.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

NORMAL MAINTENANCE SCHEDULE (CONT.)
7-12
Maintenance
52,500 miles (84,000 km) or 42 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect power steering fluid
❑ Replace engine oil and filter (52,500 miles (84,000 km) or 84 months)\
❑ Add fuel additives *
1(52,500 miles (84,000 km) or 84 months)
60,000 miles (96,000 km) or 48 months
❑ Rotate tires
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect brake fluid
❑ Inspect fuel filter *
2
❑Inspect fuel lines, fuel hoses and connections
❑ Inspect fuel tank air filter *2
❑Inspect parking brake
❑ Inspect vapor hose and fuel filler cap, fuel tank
(Continued)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
*
2: Fuel filter & Fuel tank air filter are considered to be maintenance free\
. However, regular inspection is still recommended, because the maintenance schedule depend\
s on the fuel
quality. When there are critical safety problems, such as fuel flow blocking, overflowing, power
loss, and hard starting, immediately replace the fuel filter regardless of maintenance sche\
d-
ule, and consult an authorized EQUUS dealer for further information.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

NORMAL MAINTENANCE SCHEDULE (CONT.)
7-14
Maintenance
75,000 miles (120,000 km) or 60 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect drive belts (First, 60,000 miles (96,000 km) or 72 months
after every 15,000 miles (24,000 km) or 24 months) *
4
❑ Inspect power steering fluid
❑ Inspect EHPS (Electronic Hydraulic Power Steering) motor pump and hoses
❑ Inspect rear differential oil *
3 (80,000 miles (128,000 km) or 96 months)
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace engine oil and filter (75,000 miles (120,000 km) or 120 month\
s)
❑ Add fuel additives *
1(75,000 miles (120,000 km) or 120 months)
82,500 miles (132,000 km) or 66 months
❑ Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect power steering fluid
❑ Replace engine oil and filter (82,500 miles (132,000 km) or 132 month\
s)
❑ Add fuel additives *
1(82,500 miles (132,000 km) or 132 months)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-
ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
*
3: Rear differential oil should be refilled, when the rear differential is submerged in water.
*4: The drive belt should be replaced, when it has a crack. Otherwise, the tension would be excessively reduced.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

NORMAL MAINTENANCE SCHEDULE (CONT.)
7-15
Maintenance07
90,000 miles (144,000 km) or 72 months
❑Rotate tires
❑ Inspect vacuum hose
❑ Inspect A/C refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect brake fluid
❑ Inspect fuel filter *
2
❑Inspect fuel lines, fuel hoses and connections
❑ Inspect fuel tank air filter *2
❑Inspect parking brake
❑ Inspect vapor hose and fuel filler cap, fuel tank
❑ Inspect drive belts (First, 60,000 miles (96,000 km) or 72 months
after every 15,000 miles (24,000 km) or 24 months) *
4
❑ Inspect power steering fluid
❑ Inspect EHPS (Electronic Hydraulic Power Steering) motor pump and hoses
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter (90,000 miles (144,000 km) or 144 month\
s)
❑ Add fuel additives *
1(90,000 miles (144,000 km) or 144 months)
*1: When the TOP-TIER Detergent Gasoline is unavailable, adding one bottle of additives is rec-
ommended. Additives are available from your authorized EQUUS dealer along with informa-
tion on how to use them. Do not mix it with other additives.
*
2: Fuel filter & Fuel tank air filter are considered to be maintenance free\
. However, regular inspection is still recommended, because the maintenance schedule depend\
s on the fuel
quality. When there are critical safety problems, such as fuel flow blocking, overflowing, power
loss, and hard starting, immediately replace the fuel filter regardless of maintenance sche\
d-
ule, and consult an authorized EQUUS dealer for further information.
*
4: The drive belt should be replaced, when it has a crack. Otherwise, the tension would be excessively reduced.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.