2010 TOYOTA PRIUS battery

205
2-2. Instrument cluster
2
When driving
PRIUS_U (OM47668U) U.S.A.
■
Fuel consumption history display
● Each time a trip meter is reset, the old data will move to the left by 1 col-
umn.
● A maximum of 5 history items can be displayed (including the current his-
tory). If the history exceeds 5 items, the oldest item will be deleted.
■ Driving in Eco Driving Mode
The multi-information display will automatically switch the display to the
Hybrid System Indicator, regardless of which display is currently being
shown. ( P. 172)
■ Display settings can be changed when
The vehicle speed is less than approximately 5 mph (8 km/h).
■ When the 12 volt battery is disconnected
The following data will be reset.
● Average fuel consumption
● Distance to empty
● Average vehicle speed
● Clock
● Display settings

208 2-3. Operating the lights and windshield wipers
PRIUS_U (OM47668U) U.S.A.
■Automatic light off system
● When the headlights are on: The headlights and tail lights turn off 30 sec-
onds after a door is opened and closed if the “POWER” switch has been
switched to ACCESSORY mode or OFF.
● When only the tail lights are on: The tail lights turn off automatically if the
“POWER” switch is switched to ACCESSORY mode or OFF and driver’s
door is opened.
To turn the lights on again, turn the “POWER” switch to ON mode, or turn the
light switch off once and then back to the
or position.
■ Automatic headlight leveling system (vehicles with LED headlights)
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... (vehicles with LED headlights)
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. 587)
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary if the hybrid system is not
operating.

261
2-5. Driving information
2
When driving
PRIUS_U (OM47668U) U.S.A.
Winter driving tips
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropri-
ate to the prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tem-
peratures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
● Have a service technician inspect the level and specific grav-
ity of 12 volt battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set
of tire chains for the front tires.
Ensure that all tires are the same size and brand, and that chains
match the size of the tires.

279
3-1. Using the air conditioning system
and defogger
3
Interior features
PRIUS_U (OM47668U) U.S.A.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic
mode.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather.
The difference between the temperature of the outside air and that of the
windshield can cause the outer surface of the windshield to fog up, blocking
your vision.
■ Plasmacluster™
Do not disassemble or repair the system because it contains high voltage
parts. Call your Toyota dealer if the system needs repair.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is not operating.
■ To prevent damage to the Plasmacluster™
Do not insert anything into the driver’s side vent, attach anything to it, or use
sprays around the driver’s side vent. These things may cause the system no
to work properly.

285
3-1. Using the air conditioning system and defogger
3
Interior features
PRIUS_U (OM47668U) U.S.A.
Remote Air Conditioning System
■Using the Remote Air Conditioning System effectively
Efficiency can be increased by using the system in conjunction with the
Solar Ventilation System. ( P. 282)
: If equipped
The Remote Air Conditioning System uses electrical energy stored
in the hybrid battery (traction batt ery) and allows the air conditioning
to be operated by remote control.
■ Activating the Remote Air Conditioning System
Press and hold the to
operate the Remote Air Condi-
tioning System.
• The system will shut off if a door is opened.
• The system can be stopped
by pressing the
twice.

286 3-1. Using the air conditioning system and defogger
PRIUS_U (OM47668U) U.S.A.
■Operating conditions
The system will only operate if all of the following conditions are met:
● The shift position is in “P”.
● The “POWER” switch is OFF.
● All doors are closed.
● The hood is closed.
● The brake pedal is not being depressed.
● The air conditioning is not set to MAX HOT.
■ When leaving the vehicle
● Check that the headlights are switched to either off or “AUTO”.
● Check that the wiper switch is turned off.
● Check that all windows are closed.
● Check the temperature setting of the air conditioning system. 
The Remote Air Conditioning System will operate in accordance with the
temperature settings of the air conditioning system.
■ Remote Air Conditioning System automatic shut-off
The system will automatically shut off under the following conditions:
● About 3 minutes have passed since operation began
● Any one of the operating conditions is not met
The system may also shut off if the charge level of the hybrid battery (trac-
tion battery) drops to low. ( P. 188)
■ Conditions affecting operation
The system may not start in the following situations:
● The charge level of the hybrid battery (traction battery) is low (P. 188)
● The air conditioning temperature is set at a high level

288 3-1. Using the air conditioning system and defogger
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Precautions for the Remote Air Conditioning System
Do not use the system if people are in the vehicle.
● Even when the system is in use, the internal temperature may still reach a
high level due to features such as the automatic shut-off. Children and
pets left inside the vehicle may suffer heatstroke or dehydration, or could
result in death or serious injury.
● The wipers can be operated during system operation. Children or pets left
inside the vehicle may mistakenly operate these and cause an accident.
● Turn the wipers off. If the Remote Air Conditioning System operates while
the wiper switch is in the on position, the wipers may operate and objects
may get caught in the wiper blades.
● Do not operate the if the hood is open. The air conditioning may
operate unintentionally and objects may be drawn into the electrical cool-
ing fan.
● Depending on the surrounding environment , signals from the wireless
switch may transmit further than expected. Pay appropriate attention to
the vehicle’s surroundings and use the switch only when necessary.
NOTICE
■ To prevent the hybrid battery (tractio n battery) from being discharged
through incorrect operation
Use the only when necessary.

290 3-1. Using the air conditioning system and defogger
PRIUS_U (OM47668U) U.S.A.
■The rear window and outside rear vi ew mirror defoggers can be oper-
ated when
The “POWER” switch must be in the ON mode.
CAUTION
■ When the outside rear view mirror defoggers are on (vehicles with mir-
ror defoggers)
Do not touch the rear view mirror surfaces, as they can become very hot and
burn you.
NOTICE
■ To prevent 12 volt battery discharge
Turn the defoggers off when the hybrid system is not operating.