Hybrid system warning TOYOTA PRIUS 2004 2.G Owners Manual

5
Indicator symbols on the instrument cluster and Multiinformation display
orand
Brake system warning lights∗1
Driver ’s seat belt reminder light∗1
Front passenger ’s seat belt reminder light∗1
Malfunction indicator lamp∗1
Low fuel level indicator light∗1
Open door warning light∗1
Master warning light∗1
Anti −lock brake system warning light∗
1
SRS warning light∗1
Engine oil replacement reminder light∗1
(for vehicles sold in U.S.A.)
Vehicle stability control system warning light∗1
Discharge warning light∗2
High coolant temperature warning light∗2
Low engine oil pressure warning light∗2
Hybrid vehicle battery warning light∗2
Electric power steering system warning light∗2
or
(U.S.A)
(Canada)

6
Hybrid vehicle immobilizer / Theft deterrent sys-
tem indicator light
Tail light indicator light Shift position indicator light
∗ 4
Driving ready light
Automatic air conditioner indicator light
Recirculate mode indicator light
Smart entry and start system warning light
∗ 5
Windshield air flow indicator light
Slip indicator light
Rear window and outside rear view mirror defog-
gers indicator light
Low temperature indicator light
Headlight high beam indicator light
Headlight indicator light Turn signal indicator lights
∗ 1: For details, see “Service reminder indicators and warning
buzzers— —Instrument cluster” on page 117.
∗2: For details, see “Service reminder indicators and warning
buzzers— —Multi −information display” on page 124.
∗
3: If this light flashes, see “Cruise control” on page 141.
∗4: For details, see “Hybrid transaxle” on page 135.
∗5: For details, see “Smart entry and start system” on page 23.
Cruise control indicator light∗3
Hybrid system warning light∗2
Automatic head light leveling system
warning light∗2

24
If you do not drive your vehicle,
store the smart key, keeping it at
least 5 m (16 ft.) away from the ve-
hicle.
ALARMS AND WARNING LIGHT
Your vehicle is equipped with alarms
inside and outside, as well as warning
light in the instrument cluster, that re-
mind you if there is a problem involv-
ing the smart entry and start system.
This warning light will come on when the
“IG
−ON” mode is enabled and will go off
after a few seconds.
If an alarm sounds or the warning light
comes on, be sure to check your ve-
hicle and smart key. (a) The hybrid system was not turned
off and the transaxle was in a posi-
tion other than “P”.
When the driver ’s door is opened with the
hybrid system in “ACC” or “IG −ON” and
with the transaxle in a position other than
“P”.
Inside alarm: Beeps continuously
Multiinformation display: Warning mes-
sage
Alarms will be turned off by any of the
following operations:Closing the driver ’s door
Pressing the “P” position switch
Turning on the hybrid system
Turning off the hybrid system

25
(b) The smart key was brought outsidethe vehicle with the transaxle in a
position other than “P”.
When the driver ’s door is opened or
closed with the hybrid system not to be
turned off and with the transaxle in a
position other than “P”, it is determined
that the smart key is not in the vehicle.
Inside alarm: Beeps continuously
Outside alarm: Beeps continuously
Warning light: On
Alarms will be turned off by any of the
following operations:
Pressing the “P” position switch
Bringing the smart key inside the ve-
hicle
Turning off the hybrid system
(c) The hybrid system was not turned off with the transaxle in “P”.
When the driver ’s door is opened with the
hybrid system in “ACC” and with the
transaxle in “P”.
Inside alarm: 3 Beeps
In the “IG −ON” mode, an alarm will not
sound. (d) The smart key was brought outside
the vehicle.
When the driver ’s door is opened or
closed with the hybrid system not to be
turned off (and with the transaxle in “P”),
it is determined that the smart key is not
in the vehicle.
Inside alarm: One beep
Outside alarm: 3 beeps
Warning light: On
(e) Locking with smart function was at- tempted with the hybrid system not
to be turned off.
When you attempt to lock all the doors
using smart locking function with the hy-
brid system not to be turned off and with
the transaxle in a position other than “P”.
Outside alarm: One beep (sounds for 2
seconds.)
Warning light: On
At this time, the doors cannot be
locked. (f) The smart key was brought outside
the vehicle.
When a door other than the driver ’s door
is opened or closed with the hybrid sys-
tem not to be turned off, it is determined
that the smart key is not in the vehicle.
Inside alarm: One beep
Outside alarm: 3 beeps
Warning light: On

26
(g) Preventing the key from beinglocked inside the vehicle
When you close the door with the hybrid
system off but with the smart key left in
the vehicle, and attempt to lock all the
doors using smart locking function, it is
determined that the smart key is in the
vehicle.
Outside alarm: One beep (sounds for 2
seconds)
INFORMATION
 This function may not operate when
the smart key is left on the instru-
ment panel, luggage cover, floor or
in the glove box.
 The function may operate if the
smart key is brought outside but it
is very close to the door window or
door handle.
(h) Low smart key battery
When the hybrid system is turned to
“ACC” or “OFF” about 20 minutes after
the hybrid system is turned on or to “IG −
ON”, it is determined that the smart key
battery voltage is low.
Inside alarm: One beep (i) Outside of effective range
When the “POWER” switch is pressed, it
is determined that the smart key is not in
the vehicle.
Inside alarm: One beep
Warning light: On (for 5 seconds)
(j) Open door warning
When you attempt to lock all the doors
using smart locking function with the hy-
brid system turned off but with any door
open.
Outside alarm: One beep (sounds for 10
seconds)
Alarms will be turned off by either of
the following operations:
Closing all the doors
Pressing the “” (unlock) button on
the smart key

27
Warning and its meaningInside warning alarm
Outside warning alarmWarning lightCauses
One beep
(sounds continuously)——The driver ’s door was opened when the hybrid system was in “ACC”
or “IG −ON” and when the transaxle was in a position other than “P”.
One beep
(sounds continuously)One beep
(sounds continuously)OnThe driver brought out the smart key from the vehicle with the hybrid
system not to be turned off and with the transaxle in a position other
than “P”.
Beeps
(sound intermittently)——The driver ’s door was opened when the hybrid system was in “ACC”
and when the transaxle was in “P”.
One beep3 beepsOnThe driver brought out the smart key from the vehicle with the hybrid
system not to be turned off and with the transaxle in “P”.
—One beep
(sounds for 2 seconds)OnThe lock switch was pressed with the hybrid system not to be turned
off and with the transaxle in “P”.
One beep3 beepsOnThe passenger brought out the smart key from the vehicle with the
hybrid system not to be turned off.
—One beep
(sounds for 2 seconds)—The lock switch was pressed when the hybrid system was off but with
the smart key left in the vehicle.
One beep——The key battery voltage become about 2 V. (3 V for normal operation)
One beep—On
(for 5 seconds)The “POWER” swi t c h was pr es s ed when the smar t key was not in the
effective range of the system.
—One beep
(sounds for 10 seconds)—The lock switch was pressed when the hybrid system was off but any
door was opened.

11 7
If the indicator or buzzer comes on...Do this.
(a)
or
(red indicator and buzzer)If parking brake is off, stop immediately and contact Toyota dealer.
(yellow indicator)
Take vehicle to Toyota dealer. If red brake system warning light is also on, stop imme-
diately and contact Toyota dealer.
(b)
(indicator and buzzer)
Fasten driver ’s seat belt.
(c)Fasten front passenger ’s seat belt.
(d)orTake vehicle to Toyota dealer.
(e)See multi −information display.
(f)orTake vehicle to Toyota dealer. If red brake system warning light is also on, stop imme-
diately and contact Toyota dealer.
If any warning comes on, the hybrid system may not start by pu shing the “POWER” switch. In that case, push it once again.
Service reminder indicators and warning buzzers

11 8
If the indicator or buzzer comes on...Do this.
(g)Take vehicle to Toyota dealer immediately.
(h)Close all doors.
(i)Fill up tank.
(j)Replace engine oil
(k)Take vehicle to Toyota dealer. If red brake system warning light is also on, stop imme-
diately and contact Toyota dealer.
(l)Key reminder buzzerRemove key.
(m)P position reminder
buzzerPush the “P” position switch.
If any warning comes on, the hybrid system may not start by pushing the “POWER” switch. In that case, push it once again.

11 9
(a) Brake System Warning Lights andBuzzer
These lights come on in the following
cases when the “IG −ON” mode is enabled.
RED WARNING LIGHT
When the parking brake is applied...
This light comes on when the “IG −ON”
mode is enabled, even after the parking
brake is released.
When the brake fluid level is low...
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
YELLOW WARNING LIGHT
When the regenerative brake system
is fails...
RED OR YELLOW WARNING LIGHT
When the hydraulic brake system
fails...
When the yellow warning light comes on,
it is no problem to continue driving. How-
ever, if the red warning light comes on,
it indicates a serious problem and you can
continue driving no longer. Have your vehicle checked at your
Toyota dealer in the following cases:
The lights do not come on even if the
parking brake is applied when the
“READY” light is on.
The lights do not come on even if the
“POWER” switch is pressed with the
parking brake released.
A red warning light turning on briefly dur-
ing operation does not indicate a problem.
CAUTION
If any of the following conditions oc-
curs, immediately stop your vehicle at
a safe place and contact your Toyota
dealer.
The red warning light does not turn
off even after the parking brake is
released while the hybrid system is
running.
The red warning light comes on or
buzzer sounds continuously.
In either case, this can indicate that
the brakes may not work properly and
your stopping distance will become
longer. Depress the brake pedal firmly
and bring the vehicle to an immediate
stop.
The brake system warning light re-
mains on together with the “ABS”
and “VSC” warning light.
In this case, not only the antilock
brake system and vehicle stability
control system will fail but also the
vehicle will become extremely unsta-
ble during braking.
In the following case, drive directly to
the nearest Toyota dealer.
The yellow warning light comes on
while driving.

120
Any of the following conditions may oc-
cur, but do not indicate the malfunc-
tion:
The yellow warning light may stay on
for about 60 seconds after “IG−ON”
mode is enabled. It is normal if it turns
off after a while.
Depressing the brake pedal repeatedly
may turn on the red warning light and
buzzer. It is normal if the light turns off
and the buzzer stops sounding after a
few seconds.
You may hear a small sound in the
engine compartment after the hybrid
system is started or the brake p edal is
depressed repeatedly. This is a pump
pulsating sound of the brake system,
and it is not a malfunction.
You may hear a motor sound in the
engine compartment when the brake
pedal is depressed with the hybrid sys-
tem off.
The brake pedal stroke may be short
when you press the “POWER” switch
with the brake pedal depressed. (b) Driver’s Seat Belt Reminder Light
and Buzzer
This light and buzzer remind you to
buckle up the driver’s seat belt.
Once the “IG −ON” mode is enabled, the
reminder light flashes and the buzzer
sounds if the driver ’s seat belt is not fas-
tened. Unless the driver fastens the belt,
the light keeps on flashing and the buzzer
sounds 4 to 8 seconds.
(c) Front Passenger ’s Seat Belt Reminder Light
This light reminds you to buckle up the
front passenger ’s seat belt.
Once the “IG −ON” mode is enabled, the
reminder light flashes if a passenger sits
in the front passenger seat and does not
fasten the seat belt. Unless the front pas-
senger fastens the belt, the light stays
flashing.
If luggage or other load is placed on the
front passenger seat, depending on its
weight and how it is placed on the seat,
built −in sensors in the seat cushion may
detect the pressure, causing the reminder
light to come on. (d) Malfunction Indicator Lamp
This lamp comes on when the “IGON”
mode is enabled and goes off after the
hybrid system starts. This means that
the warning light system is operating
properly.
If the lamp remains on or the lamp
comes on while driving, first check the
following:
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
This case is a temporary malfunction. The
malfunction indicator lamp will go off after
taking several driving trips.
If the lamp does not go off even after
several trips, contact your Toyota deal-
er as soon as possible.
There is a problem somewhere in the
hybrid system or warning light system
itself.
Contact your Toyota dealer as soon as
possible to service the vehicle.