check transmission fluid Hyundai Sonata 2020 Owner's Manual

Maintenance8-6
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 if there is 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
traveling 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 operation of your transmission occurs,
check the transmission fluid level.
• Check the automatic transmission P (Park) function.
• Check the parking brake.
• Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
• Check coolant level in the engine coolant reservoir.
• Check the operation of all exterior lights, including the brake lights, turn
signals and hazard warning flashers.
• Check the inflation pressures of all tires including the spare for tires that
are worn, show uneven wear, or are
damaged.
• Check for loose wheel lug nuts.
At least twice a year:
(i.e., every Spring and Autumn)
• Check radiator, heater and air conditioning hoses for leaks or
damage.
• Check windshield washer spray and wiper operation. Clean wiper blades
with a clean cloth dampened with
washer a fluid.
• Check headlamp alignment.
• Check muffler, exhaust pipes, shields and clamps.
• Check the seat belts for wear and function.
At least once a year:
• Clean body and door drain holes.
• Lubricate door hinges and hood hinges.
• Lubricate door and hood locks and latches.
• Lubricate door rubber weather strips.
• Lubricate door checker.
• Check the air conditioning system.
• Inspect and lubricate automatic transmission linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.

08
8-9
Normal Maintenanc e Schedule (Smartstream G1.6 T-GDi) (CONT)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Miles×1,000 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 Km×1,000 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Battery condition I I I I I I I I IIIIII I
Brake lines, hoses and connections I I I I I I I I IIIIII I
Disc brakes and pads I I I I I I I I IIIIII I
Driveshaft and boots I I I I I I I I IIIIII I
Suspension mounting bolts I I I I I I I I IIIIII I
Air conditioner refrigerant I I I I I I I I IIIIII I
Air conditioner compressor I I I I I I I I IIIIII I
Exhaust pipe and muffler I I I I I I I I IIIIII I
Automatic transmission fluid (if equipped) No check, No service requiredR: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.

08
8-13
Normal Maintenance Schedule (Smartstream G2.5 GDi) (CONT)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Miles×1,000 7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5 Km×1,000 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Battery condition I I I I I I I I IIIIII I
Brake lines, hoses and connections I I I I I I I I IIIIII I
Disc brakes and pads I I I I I I I I IIIIII I
Driveshaft and boots I I I I I I I I IIIIII I
Suspension mounting bolts I I I I I I I I IIIIII I
Air conditioner refrigerant I I I I I I I I IIIIII I
Air conditioner compressor I I I I I I I I IIIIII I
Exhaust pipe and muffler I I I I I I I I IIIIII I
Automatic transmission fluid (if equipped) No check, No service required
Steering gear rack, linkage and boots II IR: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.

08
8-17
Engine 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.
Information
Automatic transmission fluid color is red
when new.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker. This is a normal condition and you
should not judge the need to replace the
fluid based upon the changed color.
NOTICE
The use of a non-specified fluid could
result in transmission malfunction
and failure. Use only the specified
automatic transmission fluid (refer
to “Recommended Lubricants and
Capacities” in chapter 2).
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Parking Brake
Inspect the parking brake system
including the parking brake pedal and
cables.
Brake Discs, Pads, Calipers and
Rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
Exhaust Pipe and Muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration, or damage. Start
the engine and listen carefully for
any exhaust gas leakage. Tighten
connections or replace parts as
necessary.