2010 Hyundai Elantra Outside temp

545
Driving your vehicle
Weight of the trailer
How heavy can a trailer safely be? It
should never weigh more than the maxi-
mum trailer weight with trailer brakes. But
even that can be too heavy.
It depends on how you plan to use your
trailer. For example, speed, altitude, road
grades, outside temperature and how
often your vehicle is used to pull a trailer
are all important. The ideal trailer weight
can also depend on any special equip-
ment that you have on your vehicle.
Weight of the trailer tongue
The tongue load of any trailer is an
important weight to measure because it
affects the total gross vehicle weight
(GVW) of your vehicle. This weight
includes the curb weight of the vehicle,
any cargo you may carry in it, and the
people who will be riding in the vehicle.
And if you will tow a trailer, you must add
the tongue load to the GVW because
your vehicle will also be carrying that
weight.
The trailer tongue should weigh a maxi-
mum of 10% of the total loaded trailer
weight. After you've loaded your trailer,
weigh the trailer and then the tongue,
separately, to see if the weights are prop-
er. If they aren’t, you may be able to cor-
rect them simply by moving some items
around in the trailer.
WARNING - Trailer
Never load a trailer with moreweight in the rear than in the
front. The front should be loaded
with approximately 60% of the
total trailer load; the rear should
be loaded with approximately
40% of the total trailer load.
(Continued)

C190E02JM
Gross Axle WeightGross Vehicle Weight

C190E01JM
Tongue Load Total Trailer Weight

67
What to do in an emergency
TIRES PRESSURE MONITORING SYSTEM (TPMS) (IF EQUIPPED)
(1) Low Tire Pressure Telltale
(2) TPMS Malfunction Indicator
Each tire, including the spare (if pro-
vided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehi-
cle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If
your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation pres-
sure label, you should determine the
proper inflation pressure for those
tires.)As an added safety feature, your
vehicle has been equipped with a
Tire Pressure Monitoring System
(TPMS) that illuminates a low tire
pressure telltale when one or more
of your tires is significantly under-
inflated. Accordingly, when the low
tire pressure telltale illuminates, you
should stop and check your tires as
soon as possible, and inflate them to
the proper pressure. Driving on a
significantly under-inflated tire caus-
es the tire to overheat and can lead
to tire failure. Under-inflation also
reduces fuel efficiency and tire tread
life, and may affect the vehicle’s han-
dling and stopping ability.
Please note that the TPMS is not a
substitute for proper tire mainte-
nance, and it is the driver’s responsi-
bility to maintain correct tire pres-
sure, even if under-inflation has not
reached the level to trigger illumina-
tion of the TPMS low tire pressure
telltale.
When significant temperature
changes occur, the tire pressures will
need to be adjusted. The pressure
will drop approximately 1 psi for each
12 degree temperature drop. If set-
ting tire pressure in a warm garage
during the winter, it is possible the
TPMS telltale will illuminate after the
car has been parked outside. It is
important for the safety of the occu-
pants that the tire preform the TPMS
system are set correctly.

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What to do in an emergency
8
6
Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS mal-
function indicator is provided by a
separate telltale, which displays the
symbol "TPMS" when illuminated.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire pres-
sure as intended. TPMS malfunc-
tions may occur for a variety of rea-
sons, including the installation of
replacement or alternate tires or
wheels on the vehicle that prevent the
TPMS from functioning properly.
Always check the TPMS malfunction
indicator after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or alter-
nate tires and wheels allow the TPMS
to continue to function properly. Low tire pressure tell-
tale
When the tire pressure monitoring
system warning telltale is illuminat-
ed, one or more of your tires is sig-
nificantly under-inflated.
Immediately reduce your speed,
avoid hard cornering and anticipate
increased stopping distances. You
should stop and check your tires as
soon as possible. Inflate the tires to
the proper pressure as indicated on
the vehicle’s placard or tire inflation
pressure label located on the driver’s
side center pillar outer panel. If you
cannot reach a service station or if
the tire cannot hold the newly added
air, replace the low pressure tire with
the compact spare tire. Because the
compact spare tire is not equipped
with a tire pressure sensor, the
TPMS malfunction indicator may go
on and the Low Tire Pressure telltale
still turn on after restarting and about
20 minutes of continuous driving
before you have the low-pressure tire
repaired and replaced on the vehicle.
CAUTION
In winter or cold weather, the low tire pressure telltale may beilluminated if the tire pressurewas adjusted to the recom-mended tire inflation pressurein warm weather. It does notmean your TPMS is malfunction-ing because the decreased tem-perature leads to a proportionallowering of tire pressure.
When you drive your vehiclefrom a warm area to a cold areaor from a cold area to a warmarea, or the outside temperatureis greatly higher or lower, youshould check the tire inflationpressure and adjust the tires tothe recommended tire inflationpressure.

Maintenance
34
7
Checking tire inflation pressure
Check your tires once a month or
more.
Also, check the tire pressure of the
spare tire.
How to check
Use a good quality gage to check tire
pressure. You can not tell if your tires
are properly inflated simply by look-
ing at them. Radial tires may look
properly inflated even when they're
underinflated.
Check the tire's inflation pressure
when the tires are cold. - "Cold"
means your vehicle has been sitting
for at least three hours or driven no
more than 1 mile (1.6 km).
Remove the valve cap from the tire
valve stem. Press the tire gage firm-
ly onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the tire and loading
information label, no further adjust-
ment is necessary. If the pressure is
low, add air until you reach the rec-
ommended amount. If you overfill the tire, release air by
pushing on the metal stem in the
center of the tire valve. Recheck the
tire pressure with the tire gage. Be
sure to put the valve caps back on
the valve stems. They help prevent
leaks by keeping out dirt and mois-
ture.
When significant temperature
changes occur, the tire pressures will
need to be adjusted. The pressure
will drop approximately 1 psi for each
12 degree temperature drop. If set-
ting tire pressure in a warm garage
during the winter, it is possible the
TPMS telltale will illuminate after the
car has been parked outside. It is
important for the safety of the occu-
pants that the tire preform the TPMS
system are set correctly.
Refer to section 6 for additional infor-
mation on the Tire Pressure
Monitoring System (TPMS).
WARNING
Inspect your tires frequently
for proper inflation as well as
wear and damage. Always use
a tire pressure gauge.
Tires with too much or too lit- tle pressure wear unevenly
causing poor handling, loss of
vehicle control, and sudden
tire failure leading to acci-
dents, injuries, and even
death. The recommended cold
tire pressure for your vehicle
can be found in this manual
and on the tire label located
on the driver's side of the cen-
ter pillar.
Worn tires can cause acci- dents. Replace tires that are
worn, show uneven wear, or
are damaged.
Remember to check the pres- sure of your spare tire.
Hyundai recommends that
you check the spare every
time you check the pressure
of the other tires on your vehi-
cle.

Maintenance
54
7
LIGHT BULBS
Use only the bulbs of the specified
wattage.
✽
✽ NOTICE
After heavy, driving rain or washing,
headlight and taillight lenses could
appear frosty. This condition is caused by
the temperature difference between the
lamp inside and outside. This is similar to
the condensation on your windows inside
your vehicle during the rain and doesn’t
indicate a problem with your vehicle. If
the water leaks into the lamp bulb cir-
cuitry, have the vehicle checked by an
authorized Hyundai dealer.
Headlight, position light, turn sig-
nal light, front fog light bulb
replacement
(1) Headlight (High)
(2) Headlight (Low)
(3) Position light
(4) Front turn signal light
(5) Side mark light
(6) Front fog light (if equipped)
WARNING - Working on
the lights
Prior to working on the light, firmly
apply the parking brake, ensure
that the ignition switch is turned to
the “LOCK” position and turn off
the lights to avoid sudden move-
ment of the vehicle and burning
your fingers or receiving an electric
shock.
CAUTION
Be sure to replace the burned-out
bulb with one of the same wattagerating. Otherwise, it may causedamage to the fuse or electric wiring system.
CAUTION
If you don’t have necessary tools,the correct bulbs and the expertise,consult an authorized Hyundaidealer. In many cases, it is difficultto replace vehicle light bulbsbecause other parts of the vehicle must be removed before you canget to the bulb. This is especiallytrue if you have to remove the head-light assembly to
get to the bulb(s).
Removing/installingthe headlight
assembly can result in damage to the vehicle.
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Maintenance
66
7
3. Exhaust emission control
system
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and
may even violate governmental safety
and emissions regulations.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty.
Engine exhaust gas precautions (car-
bon monoxide)
Carbon monoxide can be present with other exhaust fumes. Therefore, if you
smell exhaust fumes of any kind inside
your vehicle, have it inspected and
repaired immediately. If you ever sus-
pect exhaust fumes are coming into
your vehicle, drive it only with all the
windows fully open. Have your vehicle
checked and repaired immediately. Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
When the vehicle is stopped in an open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
Never sit in a parked or stopped vehi- cle for any extended time with the
engine running.
When the engine stalls or fails to start, excessive attempts to restart the
engine may cause damage to the
emission control system.
WARNING- Exhaust
Engine exhaust gases contain car-
bon monoxide (CO). Though color-
less and odorless, it is dangerous
and could be lethal if inhaled.
Follow the instructions on this
page to avoid CO poisoning.

CALIFORNIA PROPOSI-
TION 65 WARNING
Engine exhaust and a wide variety
of automobile components and
parts, including components found
in the interior furnishings in a vehi-
cle, contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
reproductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of component
wear contain or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm.