brake sensor Hyundai Elantra 2009 Owner's Manual

Safety features of your vehicle50 3 Just before impact, drivers often brake
heavily. Such heavy braking lowers the
front portion of the vehicle causing it to
“ride” under a vehicle with a higher
ground clearance. Air bags may not
inflate in this "under-ride" situation
because deceleration forces that are
detected by sensors may be signifi-
cantly reduced by such “under-ride”
collisions. Air bags may not inflate in rollover acci-
dents because air bag deployment
would not provide protection to the
occupants.
However, side and/or curtain air bags
may inflate when the vehicle is rolled
over by a side impact collision, if the
vehicle is equipped with side air bags
and curtain air bags. Air bags may not inflate if the vehicle
collides with objects such as utility
poles or trees, where the point of
impact is concentrated to one area and
the full force of the impact is not deliv-
ered to the sensors.
1JBA3517
1JBA3522
1JBA3518

What to do in an emergency10 6After you replace the low pressure
tire with the compact spare tire, the
TPMS malfunction indicator may illu-
minate and the low tire pressure tell-
tale still illuminate after restarting
and about 20 minutes of continuous
driving.
Once the low pressure tire is re-inflat-
ed to the recommended pressure
and installed on the vehicle, the
TPMS malfunction indicator and the
low tire pressure telltale will be extin-
guished. If the low pressure and
TPMS malfunction indicators are not
extinguished after about 20 minutes
of continuous driving, please visit an
authorized HYUNDAI dealer.
You may not be able to identify a low
tire by simply looking at it. Always use
a good quality tire pressure gauge to
measure the tire's inflation pressure.
Please note that a tire that is hot
(from being driven) will have a higher
pressure measurement than a tire
that is cold (from sitting stationary for
at least 3 hours and driven less than
1 mile (1,6 km) during that 3 hour
period). Allow the tire to cool before
measuring the inflation pressure.Always be sure the tire is cold before
inflating to the recommended pres-
sure.
A cold tire means the vehicle has
been sitting for 3 hours and driven for
less than 1 mile (1.6 km) in that 3
hour period.
WARNING
- TPMS
The TPMS cannot alert you to
severe and sudden tire dam-
age caused by external fac-
tors such as nails or road
debris.
If you feel any vehicle instabil-
ity, immediately take your foot
off the accelerator, apply the
brakes gradually and with
light force, and slowly move to
a safe position off the road.
CAUTION
Do not use any tire sealant if
your vehicle is equipped with
a Tire Pressure Monitoring
System. The liquid sealant can
damage the tire pressure sen-
sors.
In order for the system to cor-
rectlymonitor tires for under-
inflation, there should be a
total of exactly 4 sensors fit-
ted to each of the four driven
wheel positions. There should
be no other sensors in the
vehicle including spare tire
since this could cause the
system to monitor the wrong
sensors.