Toyota 2001 Prius Owner's Manual page 168

(e) Malfunction Indicator Lamp
This lamp comes on in the following
cases:
a. The fuel tank is completely empty.
(See "Fuel gauge" on page 88 in Sec-
tion 2–4 for instructions.)
b. There is a problem somewhere in your
hybrid system.
If it comes on while you are driving in
case b, have your vehicle checked/re-
paired by your Toyota dealer as soon as
possible.
( )
(f) Master Warning Light
If the master warning light comes on, the
warning light for the faulty system is high-
lighted or the message such as "When
you park your car, make sure you shift to
Park P." and "The batteries will not charge
if the shifter is in N" appears on the mul-
ti–information display. (See "Service re-
minder indicators and warning buzzers—
—Multi–information display" on page 96
in this section or "Precautions for use" on
page 12 in Section 1–2 or "Fuel gauge"
on page 88 in Section 2–4 for instruc-
tions.)
94
(g) Output Control Warning Light
This light comes on when the ignition
switch is on. It goes off when the electric
motor is ready to run.
The warning light comes on when the hy-
brid vehicle battery temperature is low or
high, or the hybrid vehicle battery capacity
is decreased with the selector lever at "R"
during driving. If the light comes on, the
power will be limited. Drive your vehicle
without hard acceleration.
(h) Low Oil Pressure Warning Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.
( )
NOTICE
Do not drive the vehicle with the
warning light on—even for one block.
It may ruin the engine.
(i) "ABS" Warning Light
The light comes on when the ignition key
is turned to the "ON" position. If the anti–
lock brake system works properly, the
light turns off after a few seconds. There-
after if the system malfunctions, the light
comes on again.
When the "ABS" warning light is on (and
the brake system warning light is off), the
anti–lock brake system does not operate,
but the brake system still operates con-
ventionally.
When the "ABS" warning light is on (and
the brake system warning light is off), the
anti–lock brake system does not operate
so that the wheels could lock up during
a sudden braking or braking on slippery
road surfaces.
If either of the following conditions
occurs, this indicates
somewhere in the parts monitored by
the warning light system. Contact your
Toyota dealer as soon as possible so
service the vehicle.
a malfunction