Kia Optima Manual page 281

Be sure the exhaust system
does not leak.
The exhaust system should be
checked whenever the vehicle is
raised to change the oil or for any
other purpose. If you hear a change
in the sound of the exhaust or if you
drive over something that strikes the
underneath side of the vehicle, have
the exhaust system checked as soon
as possible by an authorized Kia
dealer.
WARNING
- Engine
exhaust
Do not inhale exhaust fumes or
leave your engine running in an
enclosed area for a prolonged
time.
Exhaust fumes contain carbon
monoxide, a colorless, odorless
gas that can cause uncon-
sciousness and death
asphyxiation.
WARNING
- Open trunk
Do not drive with the trunk
open.
Poisonous exhaust gases can
enter the passenger compart-
ment. If you must drive with the
trunk open proceed as follows:
1. Close all windows.
2. Open side vents.
3. Set the air intake control at
"Fresh", the air flow control at
"Floor" or "Face" and the fan
at the highest speed.
by
Driving your vehicle
5 3