1997 Lexus ES300 catalytic converter

127
SECTION 3 ± 1
STARTING AND DRIVING
Starting and driving
Three±way catalytic converter 128
Engine exhaust caution 129
Before starting the engine 130
Ignition switch with steering lock 130
Parking brake 131
How to start the engine 132
Automatic transmission 133
Cruise control 140
Electronic modulated suspension 143
Traction control system 144
Brake system 145
Brake pad wear limit indicators 147
Types of tires 148

STARTING AND DRIVING
128
THREE±WAY CATALYTIC
CONVERTER
The three±way catalytic converter is an emission
control device installed in the exhaust system.
It looks like a muffler, but its purpose is to reduce pollutants
in the exhaust gas.
CAUTION!
Keep people and combustible materials away
from the exhaust pipe while the engine is running.
The exhaust gas if very hot.
Do not drive, idle or park your vehicle over
anything that might burn easily such as grass,
leaves, paper or rags.
NOTICE
A large amount of unburned gases flowing into the
three±way catalytic converter may cause it to
overheat and create a fire hazard. To prevent this
and other damage, observe the following
precautions:
Use only unleaded gasoline.
Do not drive with an extremely low fuel level;
running out of fuel could cause the engine to
misfire, creating an excessive load on the
three±way catalytic converter.
Do not allow the engine to run at idle speed for
more than 20 minutes.
Avoid racing the engine.
Do not push±start or pull±start your vehicle.
Do not turn off the ignition while the vehicle is
moving.
Keep your engine in good running order.
Malfunction in the engine electrical system,
electronic ignition system/distributor ignition
system or fuel system could cause an extremely
high three±way catalytic converter temperature.
If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a check±up as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its three±way catalytic
converter system best.

STARTING AND DRIVING
129
To ensure that the three±way catalytic converter
and the entire emission control system operate
properly, your vehicle must receive the periodic
inspections required by the Lexus Maintenance
Schedule. For scheduled maintenance
information, refer to the separate ªOwner's
Manual Supplement/Maintenance Scheduleº.
ENGINE EXHAUST CAUTION
CAUTION!
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and
odorless gas. It can cause unconsciousness or
even death.
Make sure the exhaust system has no holes or
loose connections. The system should be
checked from time to time. If you hit something,
or notice a change in the sound of the exhaust,
have the system checked immediately.
Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in
or out. The exhaust gases cannot escape, making
this a particularly dangerous situation.
Do not remain for a long time in a parked vehicle
with the engine running. If it is unavoidable,
however, do so only in an unconfined area and
adjust the heating or cooling system to force
outside air into the vehicle.
Keep the trunk lid closed while driving. An open
or unsealed trunk lid may cause exhaust gases to
be drawn into the vehicle. If you must drive with
the trunk lid open to accommodate a large object,
close the windows, open all the dashboard vents
and have the heating or cooling system deliver
fresh air into the vehicle by turning the fan to high
speed with the air intake control button in the
OUTSIDE AIR mode.
To allow proper operation of your vehicle's
ventilation system, keep the inlet grilles in front of
the windshield clear of snow, leaves, or other
obstructions.
If you smell exhaust fumes in the vehicle, drive
with the windows open and the trunk lid closed.
Have the cause immediately located and
corrected.