2005 Hyundai Sonata ECU

2
DRIVING YOUR HYUNDAI
9
C090E01NF-GATo D (Drive):Use for normal driving. The transaxle will auto-
matically shift through a four/five gear sequence.C090D02A-AATo N (Neutral):In the "N" position, the transaxle is in neutral,
which means that no gears are engaged. The
engine can be started with the shift lever in "N"
position, although this is not recommended
except if the engine stalls while the car is
moving.C090C01A-AATo R (Reverse):Use for backing up the vehicle. Bring the car to
a complete stop before shifting the selector
lever to "R" position.
CAUTION:
o In sports mode, the driver must execute
upward shifts in accordance with pre-
vailing road conditions, taking care to
keep the engine speed below the red
zone.
o For engine protection, upward shifts are
made automatically when the engine
rpm reaches the red zone.
o By rapidly moving the selector lever
backwards (-) twice it is possible to skip
one gear, i.e., 3rd to 1st, 4th to 2nd or 5th
to 3rd. Since sudden engine braking
and/or rapid acceleration can cause a
loss of traction, however, downshifts
must be made carefully in accordance
with the vehicle's speed.
!
C090F02L-GATSports ModeWhether the vehicle is stationary or in motion,
sports mode is selected by pushing the selector
lever from the "D" position into the manual gate.
To return to "D" range operation, push the
selector lever back into the main gate.
In sports mode, moving the selector lever back-
wards and forwards can make rapid gearshifts
simple. In contrast to a manual transaxle, the
sports mode allows gearshifts with the accel-
erator pedal depressed.
UP (+) : Push the lever forward once to shift up
one gear.
DOWN (-) : Pull the lever backwards once to
shift down one gear.
SKIP : By rapidly moving the selector forward
or backward twice, it is possible to skip one
gear, i.e. 1st to 3rd or 3rd to 1st .
C090F02NF
NOTE:o In sports mode, only the four/five for-
ward gears can be selected. To reverse or
park the vehicle, move the selector lever
to the "R" or "P" position as required.
o In sports mode, downward shifts are
made automatically when the vehicle
slows down. When the vehicle stops, 1st
gear is automatically selected.

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DRIVING YOUR HYUNDAI
10
!
C090I03L-GAT
CAUTION:
o Shift into "R" and "P" position only when
the vehicle has completely stopped.
o Do not accelerate the engine in reverse
or any of the forward positions with the
brakes applied.
o Always apply the footbrake when shift-
ing from "P" or "N", to "R" or "D"position.
o Do not use the "P" (Park) position in
place of the parking brake. Always set
the parking brake, shift the transaxle
into "P" (Park) position and turn off the
ignition when you leave the vehicle, even
momentarily. Never leave the vehicle
unattended while the engine is running.
o When accelerating from a stop on a
steep hill, the vehicle may have a ten-
dency to roll backwards. Shifting the
shift lever into 2nd gear while in Sport
mode will help prevent the vehicle from
rolling backwards.
o Check the automatic transaxle fluid level
regularly, and add fluid as necessary.
o See the maintenance schedule for the
proper fluid recommendation.
C090H01L-GATNOTE:o For smooth and safe operation, depress
the brake pedal when shifting from "Neu-
tral" position or "Park" position to a
forward or reverse gear.
o The ignition key must be in the "ON"
position and the brake pedal fully de-
pressed in order to move the shift lever
from the "P" (Park) position to any of the
other positions.
o It is always possible to shift from "R",
"N", or "D" position to "P" position. The
vehicle must be fully stopped to avoid
transaxle damage. o To maintain the required levels of ve-
hicle performance and safety, the sys-
tem may not execute certain gearshifts
when the selector lever is operated.
o Before driving away from a stop on a
slippery road, push the selector lever
forward into the +(UP) position. This
causes the transaxle to shift into 2nd
gear which is better for smooth driving
away on a slippery road. Push the selec-
tor lever to the -(DOWN) side to shift
back to 1st gear.
C090J01NF-GATSHIFT LOCK RELEASE (If Installed)If you cannot move the shift lever from the "P"
(Park) position to any other position with the
brake pedal fully depressed and the ignition key
in the "ON" position, remove the cap on the
console and with a thin object such as a flat-
head screwdriver, push the shift lock release
button down. Then, with the brake pedal de-
pressed, move the shift lever to the desired
position, and then the shift lock release button
will automatically return to its original position
after shifting from the "P" (Park) position. Then,
reinstall the cap.
If you need to use the shift lock release, it could
mean your car is developing a problem. Have
the car checked by your Hyundai dealer.
C090J01NF

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DRIVING YOUR HYUNDAI
19
C190B01S-AATTrailer HitchesSelect the proper hitch and ball combination,
making sure that its location is compatible with
that of the trailer or vehicle being towed.
Use a quality non-equalizing hitch which distrib-
utes the tongue load uniformly throughout the
chassis.
The hitch should be bolted securely to the car
and installed by a qualified technician. DO NOT
USE A HITCH DESIGNED FOR TEMPORARY
INSTALLATION AND NEVER USE ONE THAT
ATTACHES ONLY TO THE BUMPER.C190C01Y-AATTrailer BrakesIf your trailer is equipped with a braking system,
make sure it conforms to federal and/or local
regulations and that it is properly installed and
operating correctly.NOTE:If you tow a trailer or vehicle, your car will
require more frequent maintenance due to
the additional load. See Maintenance Under
Severe Usage Conditions" on page 5-6.
TRAILER OR VEHICLE TOWING!
C190A01S-AATIf you are considering towing with your car, you
should first check with your State's Department
of Motor Vehicles to determine their legal re-
quirements.
Since laws vary from State to State the require-
ments for towing trailers, cars, or other types of
vehicles or apparatus may differ. Ask your
Hyundai dealer for further details before towing.
CAUTION:
Do not do any towing with your car during
its first 1,200 miles (2,000 km) in order to
allow the engine to properly break in. Fail-
ure to heed this caution may result in seri-
ous engine or transaxle damage.
USE OF LIGHTSC180A01A-AATCheck your lights regularly for correct opera-
tion and always keep them clean. When driving
during the day in conditions of poor visibility, it
is helpful to drive with headlights on low beam.
This enables you to be seen as well as to see.

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DRIVING YOUR HYUNDAI
21
C190F01Y-GATTrailer or Vehicle Towing Tips1. Before towing, check hitch and safety chain
connections as well as proper operation of
the trailer running lights, brake lights, and
turn signals.
2. Always drive your vehicle at a moderate
speed. (Less than 60 mph)
3. Trailer towing requires more fuel than normal
conditions.
4. To maintain engine braking efficiency and
electrical charging performance, do not tow
a trailer with the transaxle in fifth gear (manual
transaxle).
5. Always secure items in the trailer to prevent
load shift while driving.
6. Check the condition and air pressure of all
tires on the trailer and your car. Low tire
pressure can seriously affect the handling.
Also check the spare tire.
7. The vehicle/trailer combination is more af-
fected by crosswind and buffeting.
When being passed by a large vehicle, keep
a constant speed and steer straight ahead.
If there is too much wind buffeting, slow down
to get out of the other vehicle's air turbulence.
!
lbs(kg)
!
Tongue
200 (90)
- With3.3L
Brake 2.4L
Without BrakeMaximum Towable Weight
Trailer
2000 (900)
1500 (675)
1000 (450)
CAUTION:
The following specifications are recom-
mended when towing a trailer. The loaded
trailer weight cannot safely exceed the val-
ues in the chart below.
WARNING:
o Improperly loading your vehicle and
trailer can seriously affect its steering
and braking performance causing a
crash which could cause serious injury
or death.
o Towing a trailer affects vehicle handling
and braking.
o Drive more slowly when towing a trailer
and allow more distance when braking.
o Be careful when driving in slippery and
windy conditions.
o Be careful when turning and while driv-
ing up and down hills. 3. The front or rear axle weight must not
exceed the Gross Axle Weight Rating
(GAWR) shown on the vehicle identifi-
cation plate (see page 8-2). It is possible
that your towing package does not ex-
ceed the GVWR but exceeds the GAWR.
Improper trailer loading and/or too much
luggage in the trunk can overload the
rear axle. Redistribute the load and check
the axle weight again.

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DRIVING YOUR HYUNDAI
22
8. When parking your car and trailer, especially
on a hill, be sure to follow all the normal
precautions. Turn your front wheel into the
curb, set the parking brake firmly, and put the
transaxle in 1st or Reverse (manual) or Park
(automatic). In addition, place wheel chocks
at each of the trailer's tires.
9. If the trailer has electric brakes, start your
vehicle and trailer moving, and then apply the
trailer brake controller by hand to be sure the
brakes are working. This lets you check
your electrical connection at the same time.
10.During your trip, check occasionally to be
sure that the load is secure, and that the
lights and any trailer brakes are still working.
11.Avoid jerky starts, sudden acceleration or
sudden stops.
12.Avoid sharp turns and rapid lane changes.
13.Avoid holding the brake pedal down too long
or too frequently. This could cause the brakes
to overheat, resulting in reduced braking
efficiency.
14.When going down a hill, shift into a lower gear
and use the engine braking effect.
When ascending a long grade, downshift the
transaxle to a lower gear and reduce speed
to reduce chances of engine overloading
and/or overheating.
CAUTION:
If overheating should occur when towing,
(the temperature gauge reads near red zone),
taking the following action may reduce or
eliminate the problem.
1. Turn off the air conditioner.
2. Reduce highway speed.
3. Select a lower gear when going uphill.
4. While in stop and go traffic, place the
gear selector in park or neutral and idle
the engine at a higher speed.
!
VEHICLE LOAD LIMITC190F01JM-AATTire and Loading Information Label
I030A03NF-A
The tire label located on the driver's
side of the center pillar outer panel
gives the original tire size, cold tire
pressures recommended for your ve-
15.If you have to stop while going uphill, do not
hold the vehicle in place by pressing on the
accelerator. This can cause the automatic
transaxle to overheat. Use the parking brake
or footbrake.NOTE:When towing check transaxle fluid more
frequently.
I030A04NF-A

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DRIVING YOUR HYUNDAI
26
!
WARNING:
Items you carry inside your vehicle
can strike and injure people in a
sudden stop or turn, or in a crash.
o Put things in the cargo area of
your vehicle. Try to spread the
weight evenly.
o Never stack items, like suitcases,
inside the vehicle above the tops
of the seats.
o Do not leave an unsecured child
restraint in your vehicle.
o When you carry something inside
the vehicle, secure it.
o Do not drive with a seat folded
down unless necessary. NOTE:
o Overloading your vehicle may
cause damage. Repairs would not
be covered by your warranty. Do
not overload your vehicle.
o Using heavier suspension com-
ponents to get added durability
might not change your weight rat-
ings. Ask your dealer to help you
load your vehicle the right way.
The label will help you decide how much
cargo and installed equipment your
vehicle can carry.
If you carry items inside your vehicle –
like suitcases, tools, packages, or any-
thing else – they move as fast as the
vehicle goes. If you have to stop or turn
quickly, or if there is a crash, the items
will keep going and can cause an injury
if they strike the driver or a passenger.

32WHAT TO DO IN AN EMERGENCY
IF THE ENGINE WILL NOT START!
D010A01A-AAT D010B02A-AAT
If Engine Doesn't Turn Over or Turns
Over Slowly
D010C02Y-AATIf Engine Turns Over Normally but Does
Not Start1. Check fuel level.
2. With the key in the "OFF" position, check all
connectors at ignition, coil and spark plugs.
Reconnect any that may be disconnected or
loose.
3. Check the fuel line in the engine compart-
ment.
4. If the engine still does not start, call a Hyundai
dealer or seek other qualified assistance.D010D01A-AATIf Engine Stalls While Driving1. Reduce your speed gradually, keeping a
straight line. Move cautiously off the road to
a safe place.
2. Turn on your emergency flashers.
3. Try to start the engine again. If your vehicle
will not start, contact a Hyundai dealer or
seek other qualified assistance.
WARNING:
If the engine will not start, do not push or
pull the car to start it. This could result in a
collision or cause other damage. In addi-
tion, push or pull starting may cause the
catalytic converter to be overloaded and
create a fire hazard.
1. If your car has an automatic transaxle, be
sure the gear selector lever is in "N" or "P"
and the emergency brake is set.
2. Check the battery connections to be sure
they are clean and tight.
3. Turn on the interior light. If the light dims or
goes out when you operate the starter, the
battery is discharged.
4. Check the starter connections to be sure
they are securely tightened.
5. Do not push or pull the vehicle to start it. See
instructions for "Jump Starting".
HNF5017

3
WHAT TO DO IN AN EMERGENCY
11
it is correct. Always reinstall the valve
cap after checking or adjusting tire
pressure. If the cap is not replaced, air
may leak from the tire. If you lose a
valve cap, buy another and install it as
soon as possible.
After you have changed wheels, al-
ways secure the flat tire in its place and
return the jack and tools to their proper
storage locations.
IF YOUR VEHICLE MUST BE
TOWEDD080A01O-GATIf your vehicle has to be towed, it should be done
by your Hyundai dealer or a commercial tow
truck service. This will help assure that your
vehicle is not damaged in towing. Also, profes-
sionals are generally aware of local laws gov-
erning towing. In any case, rather than risk
damage to your car, it is suggested that you
show this information to the tow truck operator.
Be sure that a safety chain system is used and
that all local laws are observed.
It is recommended that your vehicle be towed
with a wheel lift and dollies or flatbed equipment
with all the wheels off the ground.
!
CAUTION:
o Your vehicle can be damaged if towed
incorrectly!
o Be sure the transaxle is in neutral.
o When the engine will not start, be sure
the steering is unlocked by placing the
key in the "ACC" position.
D080B01O-GATTowing the Vehicle
HNF4015
Your vehicle can be towed by wheel lift type
truck (1), (2) or flatbed equipment (3).1)
2)
3)
dolly