2015 TOYOTA PRIUS lane assist

409
4-1. Maintenance and care
PRIUS_OM_OM47A17U_DVD_(U)
4
Maintenance and care
NOTICE
■
Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration o\
f
leather surfaces:
●Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
■ Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.
■ When cleaning the inside of the wi ndshield (vehicles with LKA [Lane-
Keeping Assist])
Be careful not to touch the camera sensor ( P. 290).
If the camera is accidentally scratched or hit, LKA may not operate properly
or may cause a malfunction.

506 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Warning lightWarning light/Details
(Flashes)
(If equipped) Pre-collision syst
em warning light
Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operating. (P. 308)
• The light will turn on when the pre-collision braking is disabled. ( P. 309)
• The light will turn on when the system cannot tempo- rarily be used. ( P. 523)
(Turns on) Slip indicator light
Indicates a malfunction in:
•VSC;
•TRAC; or
• Hill-start assist control
Flashes when the above systems and/or ABS are oper-
ating. ( P. 302)
Brake system warning light (yellow indicator) Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
(Flashes)
(If equipped) LKA (Lane-Keeping Assist) indicator light
Indicates a malfunction in the LKA (Lane-Keeping
Assist). ( P. 290)

524 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Warning messageDetailsCorrection procedure
(Flashes
rapidly)
(If equipped) Indicates that there is a high
possibility of a frontal collision,
or that the pre-collision braking
function is operating.
A buzzer also sounds.
At the same time,
will appear on the
head-up display (the image
flashes). Slow the vehicle by
applying the
brakes.
(If equipped, flashes) Indicates that your vehicle is
nearing the vehicle ahead (in
radar cruise mode).
A buzzer also sounds.
At the same time,
will appear on the
head-up display (the image
flashes). Slow the vehicle by
applying the
brakes.
(If equipped) Indicates that the LKA (Lane-
Keeping Assist) is suspended
• The camera sensor tempera-
ture is higher than the opera-
tion temperature range.
• The power steering system operation is restricted. Restart the LKA
after driving for a
while.

5
When trouble arises
525
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Warning messageDetailsCorrection
procedure
Alerts the driver that the vehi-
cle is out of the lanes (while
the LKA [Lane-Keeping Assist]
system is operating). The warning buzzer sounds
continuously. The lane mark-
ings and/or the steering
wheel marking flash.
At the same time,
will appear on the
head-up display (the image
flashes). Check around the
vehicle and back to
inside of the lane
markings.
Indicates that the LKA (Lane-
Keeping Assist) system
detects nohanded driving
(while the lane keeping assist
function is operating). The warning buzzer sounds
twice. Grip the steering
wheel firmly.
The hybrid system has over-
heated. This message may be dis-
played when driving under
severe operating conditions,
and the output of the hybrid
system may temporarily
decrease in order to protect
the system. (For example,
when driving up a long steep
hill or driving up a steep hill in
reverse.) Stop and check.
(
P. 561)

528 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if
vehicle-to-vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same
speed or the vehicle ahead is traveling more quickly than your vehicle.
● When the vehicle ahead is traveling at very low speed.
● Immediately after cruise control speed is set.
● At the instant the accelerator pedal is depressed.
■ The LKA (Lane-Keeping Assist) lane departure warning function (if
equipped)
In the following cases, the warning message will not be displayed even if a
lane line is crossed.
●When the vehicle speed deviates from the operating range of the LKA
system functions
● When the lane lines cannot be recognized
● When the steering wheel is turned as far as necessary to cause the vehi-
cle to change lanes

546 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
CAUTION
■When using the compact spare tire
●Remember that the spare tire provided is specifically designed for use
with your vehicle. Do not use your spare tire on another vehicle.
●Do not use more than one spare tire simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration and braking, as well as sharp
cornering.
■When storing the compact spare tire
Be careful not to catch fingers or other body parts between the compact
spare tire and the body of the vehicle.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
●ABS & Brake assist
●VSC
●TRAC
●Cruise control (if equipped)
●Dynamic radar cruise control (if equipped)
●Pre-collision system (if equipped)
●LKA (Lane-Keeping Assist) (if equipped)
●EPS
●Rear view monitor system (if equipped)
●Advanced parking guidance system (if equipped)
●Navigation system (if equipped)

628
PRIUS_OM_OM47A17U_DVD_(U)
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/CAir Conditioning
ABSAnti-lock Brake System
ALRAutomatic Locking Retractor
APGSAdvanced Parking Guidance System
CRSChild Restraint System
DISPDisplay
ECOEconomy/Ecology
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
EVElectric Vehicle
GAWRGross Axle Weight Ratings
GPSGlobal Positioning System
GVWRGross Vehicle Weight Rating
I/MEmission Inspection and Maintenance
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
LKALane-Keeping Assist
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether

635
Alphabetical index
PRIUS_OM_OM47A17U_DVD_(U)
I/M test ...................................... 418
Identification
Engine .................................. 574
Vehicle.................................. 573
Ignition switch ......................... 195
Illuminated entry system ........ 359
Immobilizer system ................. 137
Indicator lights ........................ 222
Initialization Items to initialize ................... 609
Inside rear view mirror............ 119
Instrument panel light control.................................... 220
Interior lights Interior lights ................. 360, 361
Switch ........................... 360, 361
Wattage ................................ 582
Jack Positioning a floor jack ......... 425
Vehicle-equipped jack .......... 537
Jack handle.............................. 537
Keyless entry ............................. 86
Keys Electronic key ......................... 60
If the electronic key does not
operate properly ................. 553
If you lose your keys............. 552
Key number ............................ 60
Keyless entry .......................... 86
Keys ....................................... 60
Mechanical key....................... 60
“POWER” switch .................. 195
Wireless remote
control key............................ 86
Knee airbag.............................. 141 Lane-Keeping Assist ...............290
Language ..................................241
License plate lights
Replacing light bulbs .............478
Wattage .................................582
Light bulbs
Replacing ..............................478
Wattage .................................582
Lights
Emergency flasher switch .....494
Fog light switch .....................259
Foot lights..............................359
Hazard light switch ................494
Headlight switch ....................253
Interior lights..................360, 361
Personal lights.......................361
Replacing light bulbs .............478
Shift lever lighting ..................359
Turn signal lever....................214
Turn signal light switch ..........214
Vanity lights ...........................371
Wattage .................................582
LKA (Lane-Keeping Assist).....290
Load capacity ...........................322
Luggage compartment light Switch......................................95
Wattage .................................582
Luggage cover .........................384I
J
K
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*: Refer to “DISPLAY AUDIO SYSTEM OWNER’S MANUAL” or “NAVIGATION SYSTEM OWNER’S MANUAL”.