stability control TOYOTA PRIUS V 2012 Owners Manual (in English)

252
2-4. Using other driving systems
PRIUS v_U (OM47784U)
Driving assist systems
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
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces
■TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel
■Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road
surfaces by controlling steering performance.
■Hill-start assist control
P. 256
■ PCS (Pre-Collision System) (if equipped)
P. 258

254 2-4. Using other driving systems
PRIUS v_U (OM47784U)
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system 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 EPS system should return to normal within 10 minutes.
■ Electric power steering system warning light (warning buzzer)
 P. 453
CAUTION
■The ABS does not operate effectively when
● Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or slick road.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations:
● 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 uneven surfaces
■ TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■ When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.

551
Abbreviation list
PRIUS v_U (OM47784U)
ABBREVIATIONSMEANING
OBDOn Board Diagnostics
PCSPre-Collision System
PWRPower
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Monitoring (Warning) System
TRACTraction Control
TWITreadwear Indicator
VINVehicle Identification Number
VSCVehicle Stability Control

560 Alphabetical index
PRIUS v_U (OM47784U)
Tail lightsSwitch.................................... 213
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system ............... 119
Theft prevention labels............121
Tire inflation pressure ............. 398
Tire information Glossary ................................517
Size ....................................... 513
Tire identification number ......512
Uniform Tire Quality Grading ............................... 515
Tires
Chains ...................................274
Checking ............................... 389
Compact spare tire ................462
If you have a flat tire ..............462
Inflation pressure...................398
Inflation pressure sensor ....... 390
Information ............................ 510
Replacing ..............................462
Rotating tires .........................389
Size ....................................... 504
Snow tires ............................. 273
Spare tire............................... 462
Tire pressure warning system ........................389, 449 Tonneau cover ......................... 330
Tools ......................................... 462
Total load capacity .................. 272
Towing
Dinghy towing ....................... 278
Emergency towing ................ 438
Trailer towing ........................ 277
TRAC ......................................... 252
Traction control ....................... 252
Trailer towing ........................... 277
Transmission Hybrid transmission .............. 185
P position switch ................... 188
Trip information ....................... 201
Trip meter ................................. 198
Turn signal lights Replacing light bulbs ............. 421
Switch ................................... 194
Wattage................................. 506
USB port
*
Vanity lights Vanity lights........................... 315
Wattage................................. 506
Vanity mirrors .......................... 315
Vehicle data recordings ............ 22
Vehicle identification number ................................... 497
Vehicle proximity notification system.................. 32
Vehicle stability control .......... 252
VSC ........................................... 252
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