2019 HYUNDAI SONATA HYBRID brake pads

5-20
Driving your vehicle
Disc brakes wear indicator
When your brake pads are worn out
and new pads are required, you will
hear a high pitched warning sound
from your front or rear brakes. You
may hear this sound come and go or
it may occur whenever you depress
the brake pedal.
Note that some driving conditions or
climates may cause a brake squeal
when you first apply (or lightly apply)
the brakes. This is normal and does
not indicate a problem with your
brakes.
To avoid costly brake repairs, do
not continue to drive with wornbrake pads.Information
Always replace brake pads as com-
plete front or rear axle sets.
Foot parking brake (if equipped)
Applying the parking brake
To engage the parking brake, first
apply the foot brake and then
depress the parking brake pedal
down as far as possible.
Releasing the parking brake
To release:
Firmly depress the brake pedal.
Depress the parking brake pedal
down and it will release automatical-
ly.
If the parking brake does not release
or does not release all the way, have
the system checked by an authorized
HYUNDAI dealer.
i
NOTICEODH053142
To reduce the risk of SERIOUS
INJURY or DEATH, do not oper-ate the parking brake while the
vehicle is moving except in an
emergency situation. It could
damage the brake system andlead to an accident.
WARNING
ODH053143

6-36
What to do in an emergency
Starter won't function
Engine turns over but
will not start Engine misfires
Engine overheats Engine stops while
driving Fuel consumption is
excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakesSteering wheel pulls to
one side while drivingVehicle pulls to one side
while braking
Tire wear is abnormalCharge warning light\
comes on while drivingWipers, horn or lights
won't funciton
Battery discharge is
excessive
Ignition circuit faulty
Ignition coil or condensor faulty
Distributor faulty
Alternator belt loose
Check fuses, bulbs or wiring
Brake dragging
Shift lever not positioned in "P" or "N" range
Frequent driving in lower gear
Air intrusion into brake lines
Brake fluid insufficient
Brake disc and pads wet
Brake pad wearWheel alignment incorrectWheel balance incorrect
Tire pressure incorrect (too low or high)
Tire size incorrectO
O OO
O
OOOO O OO O O O O O
OOOO
OOO O
O O O
OO O O O O
O
SYMPTOM
PROBABLE CAUSE

7-11
7
Maintenance
Normal maintenance schedule (CONT.)
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
No.DESCRIPTIONKILOMETERS X 10001224364860728496108120132144156168180192204216228240
MONTHS6121824303642485460667278849096102108114120
GENERAL ITEMS
1ENGINE COOLANTAt first, replace the coolant at 192,000 km or 120 months;after that, replace it every 48,000 km or 24 months
2INVERTER COOLANTAt first, replace the coolant at 192,000 km or 120 months;
after that, replace it every 48,000 km or 24 months
3AUTOMATIC TRANSMISSION FLUIDNo check, No service required
4BRAKE FLUIDIIIII
5BRAKE HOSE/LINES & CONNECTIONS (including booster)IIIIIIIIII
6FRONT DISC BRAKE/PADS, CALIPERSIIIIIIIIII
7REAR BRAKE DISC/PADSIIIIIIIIII
8PARKING BRAKEIIIII

7-13
7
Maintenance
Maintenance under severe usage conditions
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
MAINTENANCE ITEMMAINTENANCEOPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
ENGINE OIL AND FILTERREVERY 6,000 KM OR 6 MONTHSA, B, C, D, E, F, G, H, I, K
AIR CLEANER FILTERRMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYB, H
AUTOMATIC TRANSMISSION FLUIDREVERY 96,000 KMA, C, D, E, F, G, H, I, K
HSG (Hybrid Starter & Generater) BeltREVERY 48,000 KM OR 24 MONTHSC, D, E, LIEVERY 6,000 KM OR 6 MONTHS
FRONT DISC BRAKE/PADS, CALIPERSIMORE FREQUENTLYC, D, G, H
REAR BRAKE DISC/PADSIMORE FREQUENTLYC, D, G, F
PARKING BRAKEIMORE FREQUENTLYC, D, G, H
STEERING GEAR BOX, LINKAGE &
BOOTS/LOWER ARM BALL JOINT, UPPER ARM BALL JOINT
IMORE FREQUENTLYC, D, E, F, G, H, I
DRIVE SHAFTS AND BOOTSIEVERY 12,000 KM OR 6 MONTHSC, D, E, F, G, H, I, J

7-17
7
Maintenance
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://ser
vice.hyundai-motor.com)
Exhaust pipe and muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and the
hybrid system off, check for exces-
sive 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.
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
Check the air conditioning lines and
connections for leakage and damage.

7-38
Maintenance
Tire rotation
To equalize tread wear, HYUNDAI recommends that the tires be rotated
every 12,000 km (7,500 miles) or
sooner if irregular wear develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire pres-
sure, improper wheel alignment, out-
of-balance wheels, severe braking or
severe cornering. Look for bumps or
bulges in the tread or side of tire.
Replace the tire if you find either of
these conditions. Replace the tire if
fabric or cord is visible. After rotation,
be sure to bring the front and rear tire
pressures to specification and check
lug nut tightness (proper torque is11-13 kgf
m [79-94 lbf ft]). Disc brake pads should be inspected
for wear whenever tires are rotated. Information
The outside and inside of the unsym-
metrical tire is distinguishable. When
installing an unsymmetrical tire, be
sure to install the side marked "out-
side" face the outside. If the side
marked "inside" is installed on the
outside, it will have a bad effect on
vehicle performance.
i
ODH073802
■ Without a spare tire
Do not use the compact spare
tire for tire rotation.
Do not mix bias ply and radial
ply tires under any circum-
stances. This may cause
unusual handling characteris-
tics that may cause loss of
vehicle control resulting in anaccident.
WARNING