Toyota Prius HSD 2004, Owner'S Manual

Page: 217 / 330

205
30p001d
The three − way catalytic converters are
emission control devices installed in
the exhaust system.
Its purpose is to reduce pollutants in the
exhaust gas.
CAUTION
! Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.
! Do not drive, idle or park your ve-
hicle 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, creat-
ing an excessive load on the three
−
way catalytic converter.
! Do not turn off the ignition while
the vehicle is moving.
!
Keep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel system could cause an ex-
tremely high 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 Toyota
dealer knows your vehicle and its
three
− way catalytic converter sys-
tem best.
! To ensure that the three − way cata-
lytic converter and the entire emis-
sion control system operate proper-
ly, your vehicle must receive the
periodic inspections required by the
Toyota Maintenance Schedule. For
scheduled maintenance information,
refer to the “Scheduled Maintenance
Guide” or “Owner’s Manual Supple-
ment”.
Three − way catalytic converters