2009 TOYOTA PRIUS Light system

136 2-1. Driving procedures
PRIUS_U_(OM47614U)
■If the hybrid system does not start
The hybrid system immobilizer system may not have been deactivated.
(P. 82)
■ If the “READY” light does not come on
If the “READY” light does not come on when you press the power switch with
the shift lever in “P” and the brake pedal pressed, contact your Toyota dealer
immediately.
■ When the “POWER” switch in dicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Toy-
ota dealer immediately.
■ Auto power OFF function
The “POWER” switch will automatically turn OFF when left in ACCESSORY
mode for 1 hour or more.
■ Electronic key battery depletion
 P. 4 4
■ When the electronic key battery is discharged
 P. 392
■ Conditions affecting operation
 P. 4 2
■ Leak detection pump
Several hours after the engine is turned off, you may hear a sound coming
from underneath the luggage compartment for several minutes.
This is normal operation and does not indicate a malfunction.

147
2-2. Instrument cluster
2
When driving
PRIUS_U_(OM47614U)
NOTICE
■
To prevent damage to the hybr id system and its components
The hybrid system may be overheating if the high coolant temperature warn-
ing light is displayed on the touch screen. In this case, immediately stop the
vehicle in a safe place. Check the hybrid system after it has cooled com-
pletely. ( P. 454)

150 2-2. Instrument cluster
PRIUS_U_(OM47614U)
■Indicators
The indicators inform the driver of the operating state of the
vehicle’s various systems.
Turn signal indicator
(P. 142)SRS airbag on-off indi-
cator ( P. 101)
Headlight high beam
indicator ( P. 152)Recirculate mode indi-
cator (P. 201, 208)
(U.S.A.)
Headlight indicator
(P. 152)Automatic air condi-
tioner indicator
(P. 198, 205)
(Canada)
Tail light indicator
(P. 152)Windshield air flow indi-
cator ( P. 201, 208)
Shift position and shift
range indicators
(P. 138)Rear window and out-
side rear view mirror
defoggers indicator
(P. 213)
Cruise control indicator
(P. 159)Driving ready indicator
(P. 132)
Slip indicator ( P. 166)
Immobilizer / Theft
deterrent system indica-
tor (P. 8 2 84)
*
*

151
2-2. Instrument cluster
2
When driving
PRIUS_U_(OM47614U)
CAUTION
■
If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light
not come on when you start the hybrid system, this could mean that these
systems are not available to help protect you in an accident, which could
result in death or serious injury. Have the vehicle inspected by your Toyota
dealer immediately if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems. ( P. 423)
*: These lights turn on when the “POWER” switch is turned to ON mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is started is on, or after a few seconds. There
may be a malfunction in a system if the lights do not come on, or turn
off. Have the vehicle inspected by your Toyota dealer.
(U.S.A.)(Canada) redyellow(if equipped)
(U.S.A.)(Canada)
(U.S.A.)
(if equipped)
******
****
*
*

153
2-3. Operating the lights and windshield wipers
2
When driving
PRIUS_U_(OM47614U)
■
Daytime running light system (if equipped)
To make your vehicle more visible to other drivers, the headlights turn on
automatically (at a reduced intensity) whenever the hybrid system is started
and the parking brake is released. Daytime running lights are not designed
for use at night.
■ Headlight control sensor (if equipped)
■ Automatic light off system
Opening the driver’s door with the “POWER” switch in ACCESSORY mode
or OFF will turn the headlights and tail lights off.
To turn the lights on again, switch to ON mode, or turn the light switch “OFF”
once and then back to the or position.
■ Automatic headlight leveling system (Vehicle with discharge head-
lights)
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users.
■ If the indicator flashes...
It may indicate a malfunction in the system. Contact your Toyota dealer.
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 486)
The sensor may not function properly if
an object is placed on the sensor, or any-
thing that blocks the sensor is affixed to
the windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight con-
trol system to malfunction.

154 2-3. Operating the lights and windshield wipers
PRIUS_U_(OM47614U)
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary if the hybrid system is not
operating.

160 2-4. Using other driving systems
PRIUS_U_(OM47614U)
■Adjusting the speed setting
Increase speed
Decrease speed
Hold the lever until the desired
speed setting is obtained.
Fine adjustment of the set
speed (approximately 1.0 mph
[1.6 km/h]) can be made by
lightly pressing the lever up or
down and releasing it.
■Canceling and resuming regular acceleration
Cancel
Push the lever towards you to
cancel cruise control.
The setting is also canceled
when the brake pedal is
depressed.
Resume
To resume cruise control and
return to the set speed, push
the lever up.

161
2-4. Using other
driving systems
2
When driving
PRIUS_U_(OM47614U)
■Cruise control can be set when
● The shift lever is in the “D” range.
● Vehicle speed is between approximately 25 mph (40 km/h) and 125 mph
(200 km/h).
■ Accelerating
The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
■ Automatic cruise control cancelation
The set speed is automatically canceled in any of the following situations.
● Actual vehicle speed falls more than 10 mph (16 km/h) below the preset
vehicle speed
● Actual vehicle speed is below 25 mph (40 km/h)
● Enhanced VSC is activated
■ If the cruise control indicator light flashes
Turn the “ON-OFF” button off once, and then reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels
immediately after being activated, there may be a malfunction in the cruise
control system. Have the vehicle inspected by your Toyota dealer.