Toyota Prius Owners Manual
Vehicle stability control system
The vehicle stability control systemhelps provide integrated control of thesystems such as anti−lock brake system,brake assist system, hybrid systemcontrol, etc. This system automaticallycontrols the brakes and hybrid systemto help prevent the vehicle from skiddingwhen cornering on a slippery roadsurface or operating steering wheelabruptly.
The vehicle stability control system is activatedwhen the vehicle speed is morethan about 15 km/h (9 mph).
Do not rely exclusively on the vehiclestability control system. Evenif the vehicle stability control systemis operating, you must alwaysdrive carefully and attentively toavoid death or serious injury. Recklessdriving will result in an unexpectedaccident. If the slip indicatorlight flashes, sounding an alarm,special care should be taken whiledriving.
Only use tires of specified size. Thesize, manufacturer, brand and treadpattern for all 4 tires should be thesame. If you use tires other thanspecified, or mixed types or size,the vehicle stability control systemmay not function correctly. Whenreplacing the tires or wheels, contactyour Toyota dealer. (See“Checking and replacing tires” onpage 411.)
Slip indicator light
If the vehicle is going to skid during driving,the slip indicator light blinks and analarm sounds intermittently. Special careshould be taken while driving.
The slip indicator light blinks in the followingconditions also.
- The vehicle tires are racing. Utmostcare is required when driving.
- When the anti−lock brake system isoperating. See “Brake system” on page327 for details.
The slip indicator light comes on when the“IG−ON” mode is enabled and will go offafter the “READY” light comes on. If theindicator light does not come on when thehybrid system is turned on, contact yourToyota dealer.
“VSC” warning light
This light warns that there is a problemsomewhere in the vehicle stability controlsystem.
The light will come on when the “IG−ON”mode is enabled and will go off after the“READY” light comes on.
If the light comes on while driving, thesystem does not work. However, becausethe conventional braking still operates, youcan drive your vehicle without damagingit. Contact your Toyota dealer.
In the following cases, contact your Toyotadealer:
The warning light does not come onafter the “IG−ON” mode is enabled.
The warning light remains on after the“READY” light comes on.
The warning light comes on while driving.