2015 HYUNDAI GENESIS G80 check engine

Maintenance
6 7
G030102ABH
While operating your vehicle:
Note any changes in the sound of the
exhaust or any smell of exhaust fumes
in the vehicle.
Check for vibrations in the steering
wheel. Notice any increased steering
effort or looseness in the steering
wheel, or change in its straight-ahead
position.
Notice if your vehicle constantly turns
slightly or “pulls” to one side when trav-
eling on smooth, level road.
When stopping, listen and check for
unusual sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
If any slipping or changes in the oper-
ation of your transmission occurs,
check the transmission fluid level.
Check automatic transmission P (Park)
function.
Check parking brake.
Check for fluid leaks under your vehicle
(water dripping from the air condition-
ing system during or after use is nor-
mal).
G030103AUN
At least monthly:
Check coolant level in the engine
coolant reservoir.
Check the operation of all exterior
lights, including the stoplights, turn sig-
nals and hazard warning flashers.
Check the inflation pressures of all
tires including the spare.
G030104AUN
At least twice a year
(i.e., every Spring and Fall):
Check radiator, heater and air condi-
tioning hoses for leaks or damage.
Check windshield washer spray and
wiper operation. Clean wiper blades
with clean cloth dampened with wash-
er fluid.
Check headlight alignment.
Check muffler, exhaust pipes, shields
and clamps.
Check the lap/shoulder belts for wear
and function.
Check for worn tires and loose wheel
lug nuts.
G030105AUN-EU
At least once a year:
Clean body and door drain holes.
Lubricate door hinges and checks, and
hood hinges.
Lubricate door and hood locks and
latches.
Lubricate door rubber weatherstrips.
Check the air conditioning system.
Check the power steering fluid level.
Inspect and lubricate automatic trans-
mission linkage and controls.
Clean battery and terminals.
Check the brake fluid level.

79
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
DESCRIPTION
7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5 120 127.5 135 142.5 150
12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216 228 240
6 121824303642485460667278849096102108114120
At first, inspect the drive belt at 60,000 miles (96,000 km) or 72 months;
after that, inspect it 15,000 miles (24,000 km) or 24 months
At first, replace the coolant at 120,000 miles (192,000 km) or 120 months;
after that, replace it every 30,000 miles (48,000 km) or 24 months
No check, No service required
IIIII
IIIIIIIIII
IIIIIIIIII
IIIIIIIIII
IIIII
IIIIIIIIII
IIIIIIIIII GENERAL ITEMS
DRIVE BELT*1
COOLANT*2
AUTOMATIC TRANSMISSION FLUID*3
BRAKE FLUID
BRAKE HOSES AND LINES
FRONT DISC BRAKE/PADS, CALIPERS
REAR BRAKE DISC/PADS
PARKING BRAKE
EXHAUST PIPE AND MUFFLER
SUSPENSION MOUNTING BOLTSMILES X 1000
KILOMETERS X 1000
MONTHS
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
No.
1
2
3
4
5
6
7
8
9
10
*1: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*2: When adding coolant, use only deionized water or soft water for your vehicle and never mix hard water in the coolant filled at
the factory. An improper coolant mixture can result in serious malfunction or engine damage.
*
3: Use only the specified automatic transmission fluid. (Refer to “Recommended lubricants and capacities” in section 8 or the label in the
engine room.)

Maintenance
12 7
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
G050100AUN
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in the
maintenance schedule. If the car is being
driven in severe conditions, more fre-
quent oil and filter changes are required.
G050200AUN
Drive belts
Inspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation
and replace if necessary.
G050300ABH
Fuel filter
A clogged filter can limit the speed at
which the vehicle may be driven, damage
the emission system and cause multiple
issues such as hard starting. If an exces-
sive amount of foreign matter accumu-
lates in the fuel tank, the filter may
require replacement more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed
by an authorized HYUNDAI dealer.
G050400AEN-EU
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and con-
nections for leakage and damage. Have an
authorized HYUNDAI dealer replace any
damaged or leaking parts immediately.
G050600AUN
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap is
correctly replaced.
G050700AUN
Vacuum hose
Inspect the surface of hoses for evidence
of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts,
abrasions, and excessive swelling indi-
cate deterioration. Particular attention
should be paid to examine those hose
surfaces nearest to high heat sources,
such as the exhaust manifold.
Inspect the hose routing to assure that
the hoses do not come in contact with
any heat source, sharp edges or moving
component which might cause heat dam-
age or mechanical wear.
Inspect all hose connections, such as
clamps and couplings, to make sure they
are secure, and that no leaks are pres-
ent. Hoses should be replaced immedi-
ately if there is any evidence of deterio-
ration or damage.
G050800AEN
Air cleaner filter
A Genuine HYUNDAI air cleaner filter is
recommended when the filter is replaced.

713
Maintenance
G050900AUN
Spark plugs
Make sure to install new spark plugs of
the correct heat range.
G051000AEN
Valve clearance (3.8L)
Inspect excessive valve noise and/or
engine vibration and adjust if necessary.
An authorized HYUNDAI dealer should
perform the operation.
G051100AUN
Cooling system
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
G051200AUN
Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Automatic transmission fluid
Automatic transmission fluid should not be
checked under normal usage conditions.
But in severe conditions, the fluid should
be changed at an authorized HYUNDAI
dealer in accordance to the scheduled
maintenance at the beginning of this
chapter.
✽ ✽
NOTICE
Automatic transmission fluid color is
basically red.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker.
This is normal condition and you should
not judge the need to replace the fluid
based upon the changed color.
G051500AUN
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
G051600AUN
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.
Never mix different types of fluid.
G051700AUN
Parking brake
Inspect the parking brake system includ-
ing the parking brake pedal and cables.CAUTION
The use of a non-specified fluid
could result in transmission mal-
function and failure.
Use only specified automatic trans-
mission fluid. (Refer to
“Recommended lubricants and
capacities” in section 8.)

Maintenance
14 7
G051900AUN
Brake discs, pads, calipers and
rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for fluid
leakage.
G052000AUN
Exhaust pipe and muffler
Visually inspect the exhaust pipes, muffler
and hangers for cracks, deterioration, or
damage. Start the engine and listen care-
fully for any exhaust gas leakage. Tighten
connections or replace parts as necessary.
G052100AUN
Suspension mounting bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
G052200AUN
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 damage.
Check the dust boots and ball joints for
deterioration, cracks, or damage.
Replace any damaged parts.
G052300AEN
Power steering pump, belt and
hoses
Check the power steering pump and
hoses for leakage and damage. Replace
any damaged or leaking parts immedi-
ately. Inspect the power steering belt (or
drive belt) for evidence of cuts, cracks,
excessive wear, oiliness and proper ten-
sion. Replace or adjust it if necessary.
G052400AUN
Drive shafts and boots
Check the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if nec-
essary, repack the grease.
G052500AUN
Air conditioning refrigerant
Check the air conditioning lines and con-
nections for leakage and damage.

715
Maintenance
ENGINE OIL
G060100AEN-EU
Checking the engine oil level
1. Be sure the vehicle is on level ground.
2. Start the engine and allow it to reach
normal operating temperature.3. Turn the engine off and wait for a few
minutes (about 5 minutes) for the oil to
return to the oil pan.
4. Pull the dipstick out, wipe it clean, and
re-insert it fully.
5. Pull the dipstick out again and check
the level. The level should be between
F and L.
If it is near or at L, add enough oil to bring
the level to F.Do not overfill.
Use a funnel to help prevent oil from
being spilled on engine components.
Use only the specified engine oil. (Refer
to “Recommended lubricants and capaci-
ties” in section 8.)
OBH071002
OBH071002N
5.0L
3.8L
OBH071003
OBH071003N
5.0L
3.8L
WARNING - Radiator hose
Be very careful not to touch the
radiator hose when checking or
adding the engine oil as it may be
hot enough to burn you.
CAUTION
Do not overfill with engine oil.
Engine damage may result.
Do not spill engine oil, when adding
or changing engine oil. If you spill
engine oil in the engine room, wipe
it off immediately.

717
Maintenance
G070000AUN
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level at least once a year, at the
beginning of the winter season, and
before traveling to a colder climate.
G070100AEN
Checking the coolant level
ENGINE COOLANT
WARNING
Removing radiator
cap
Never attempt to remove the radi-
ator cap while the engine is oper-
ating or hot. Doing so might lead
to cooling system and engine
damage and could result in seri-
ous personal injury from escap-
ing hot coolant or steam.
Turn the engine off and wait until it
cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the cool-
ing system. When you are sure all
the pressure has been released,
press down on the cap, using a
thick towel, and continue turning
counterclockwise to remove it.
(Continued)
(Continued)
Even if the engine is not operat-
ing, do not remove the radiator
cap or the drain plug while the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.
WARNING
The electric motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when the
engine is not running. Use extreme
caution when working near the
blades of the cooling fan so that
you are not injured by a rotating fan
blades. As the engine coolant tem-
perature decreases, the electric
motor will automatically shut off.
This is a normal condition. If your
vehicle is equipped with GDI, the
electric motor (cooling fan) may
operate until you disconnect the
negative battery cable.

Maintenance
18 7
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be
filled between F and L
marks on the side of the
coolant reservoir when the
engine is cool.
If the coolant level is low, add enough
distilled (deionized) water. Bring the level
to F, but do not overfill. If frequent addi-
tions are required, see an authorized
HYUNDAI dealer for a cooling system
inspection.
G070101AUN
Recommended engine coolant
When adding coolant, use only deion-
ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
The engine in your vehicle has aluminum
engine parts and must be protected by
an ethylene-glycol-based coolant to pre-
vent corrosion and freezing.
DO NOT USE alcohol or methanol
coolant or mix them with the specified
coolant.
Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
For mixture percentage, refer to the fol-
lowing table.
5°F (-15°C) 35 65
-13°F (-25°C ) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
Ambient
TemperatureMixture Percentage (volume)
Antifreeze
Water
OBH071004
WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injury.
OBH072005L