2008 TOYOTA PRIUS Owners Manual

169
2-4. Using other
driving systems
2
When driving
PRIUS_U_(L/O_0802)
CAUTION
■When using the rear view moni tor system, observe these precautions
to avoid an accident that could r esult in death or serious injuries.
● Never depend solely on the monitor system when reversing.
● Always check visually and with the mirrors to confirm your intended path is
clear.
● Depicted distances between objects and flat surfaces differ from actual
distances.
● Do not use the system if the back door is open.
■ Conditions which may affect the rear view monitor system
● If the back of the vehicle is hit, the camera’s position and mounting angle
may change. Contact your Toyota dealer.
● Rapid temperature changes, such as when hot water is poured on the
vehicle in cold weather, may cause the system to function abnormally.
● If the camera lens is dirty, it cannot transmit a clear image. Rinse with
water and wipe with a soft cloth. If extremely dirty, wash with a mild
cleanser and rinse.
● The displayed image may be darker and moving images may be slightly
distorted when the system is cold.

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2-4. Using other driving systems
PRIUS_U_(L/O_0802)
Driving assist systems
When the Enhanced VSC is operatingIf the vehicle is in danger of slip-
ping or the front wheels spin, the
indicator flashes to indicate that
the Enhanced VSC have been
engaged.
A buzzer (intermittent) sounds to
indicate that Enhanced VSC is
operating.
The slip indicator light flashes as
well when ABS is operating.
To help enhance driving safety and performance, the following sys-
tems operate automatically in res ponse to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too h eavily when operating the vehicle.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
■Brake Assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation.
■Enhanced VSC (Vehicle Stab ility Control) (If equipped)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces.
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.
ITY24P010

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2-4. Using other
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When driving
PRIUS_U_(L/O_0802)
■Sounds and vibrations caused by the ABS, BA and Enhanced VSC
● A sound may be heard from the hybrid system compartment when the
hybrid system is started or just after the vehicle begins to move. This
sound does not indicate that a malfunction has occurred in any of these
systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from
excessive steering input or stop the vehicle and turn the hybrid system OFF.
The system should return to normal within 10 minutes.

172 2-4. Using other driving systems
PRIUS_U_(L/O_0802)
CAUTION
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded.
● The vehicle hydroplanes while driving at high speed on the wet or slick
road.
■ Stopping distance when the ABS is ope rating on the wet or slick roads
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a sufficient distance from the vehicle in front of you in the following
situations.
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or roads with uneven pavement
■ When the Enhanced VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive
carefully.
Reckless driving may cause an accident. Exercise particular care when the
indicator light flashes and a buzzer sounds.
■ Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total
load capacity. In addition, make sure that the tires are inflated to the speci-
fied tire pressure level.
The ABS and Enhanced VSC will not function correctly if different tires are
fitted on the vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.

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2
When driving
PRIUS_U_(L/O_0802)
2-5. Driving information
Cargo and luggage
Capacity and distributionCargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capa city) — (Total weight of occupants)
Steps for Determining Correct Load Limit—
(1) Locate the statement “The co mbined weight of occupants and
cargo should never exceed XXX kg or XXX lbs.” on your vehi-
cle’s placard.
(2) Determine the combined weight of the driver and passengers that will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers from
XXX kg or XXX lbs.
(4) The resulting figure equals the available amount of cargo and luggage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will
be five 150 lb passengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is 650 lbs. (1400 - 750 (5
 150) = 650 lbs.)
(5) Determine the combined weight of luggage and cargo being loaded on the vehicle.
That weight may not safely ex ceed the available cargo and lug-
gage load capacity calculated in Step 4.
Take notice of the following information about storage precau-
tions, cargo capacity and load.
● Stow cargo and luggage in the back door whenever possible.
Be sure all items are secured in place.
● Be careful to keep the vehicle le vel. Placing the weight as far
forward as possible helps maintain vehicle balance.
● For better fuel economy, do no t carry unnecessary weight.

174 2-5. Driving information
PRIUS_U_(L/O_0802)(6) If your vehicle will be towing a trailer, load from your trailer will
be transferred to your vehicle. Consult this manual to determine
how this reduces the available cargo and luggage load capacity
of your vehicle. ( P. 176)
Toyota does not recommend towing a trailer with your vehicle.
Your vehicle is not designed for trailer towing.
Example on your vehicle
Cargo capacity
Total load capacity
When 2 people with the combined weight of 366 lb. (166 kg) are
riding in your vehicle, which has a total load capacity of 815 lb. (370
kg), the available amount of cargo and luggage load capacity will be
as follows:
810 lb. — 366 lb. = 444 lb. (365 kg — 166 kg = 199 kg)
In this condition, if 3 more pa ssengers with the combined weight of
388 lb. (176 kg) get on , the available cargo and luggage load will be
reduced as follows:
444 lb. — 388 lb. = 56 lb. (199 kg — 176 kg = 23 kg)
As shown in the above example, if the number of occupants
increases, the cargo and luggage load equaling the combined weight
of the occupants who got on later, by an amount. In other words, if an
increase in the number of occupants causes an excess of the total
load capacity (combined weight of occupants plus cargo and luggage
load), you must reduce the carg o and luggage on your vehicle.

175
2-5. Driving information
2
When driving
PRIUS_U_(L/O_0802)
CAUTION
■Storage precautions
●Do not place anything on the package tray behind the rear seatback.
Such items may be thrown about and possibly injure people in the
vehicle during sudden braking or in an accident.
●Do not drive with objects on top of the instrument panel.
They may interfere with the driver’s field of view or move during sharp
acceleration or turning, thus impairing the driver’s control of the vehi-
cle. In an accident they may injure the vehicle occupants.
●Secure all items in the occupant compartment, as they may shift and
injure someone during an accident or sudden braking.
■Weight of the load
●Improper loading may cause deterioration of steering or braking con-
trol resulting in an accident which may cause death or serious injury.
●Do not exceed the maximum axle weight rating or the total vehicle
weight rating.
●Even if the total load of occupant’s weight and the cargo load is less
than the total load capacity, do no
t apply the load unevenly. Improper
loading may cause deterioration of st eering or braking control which
may cause death or serious injury.

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2-5. Driving information
PRIUS_U_(L/O_0802)
Vehicle load limits
■Total load capacity and seating capacity
These details are also described on the tire and loading information
label. (P. 388)
CAUTION
■Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the ti res, but also degrade steering and
braking ability, resulting in an accident.
Vehicle load limits include total load capacity, seating capacity,
towing capacity and cargo capacity.
■ Total load capacity: 810 lb. (365 kg)
Total load capacity means the combined weight of occupants,
cargo and luggage.
■ Seating capacity: 5 occupants (Front 2, Rear 3)
Seating capacity means the ma ximum number of occupants
whose estimated average weight is 150 lb. (68 kg) per person.
Even if the number of occupants are within the seating capacity,
do not exceed the total load capacity.
■ Towing capacity
Toyota does not recommend towing a trailer with your vehicle.
■ Cargo capacity
Cargo capacity may increase or decrease depending on the
weight and the number of occupants.