When driving -> Hill-start assist control for Your Toyota Prius 4 Door Third Generation (2010-2015)

2-4. Using ot her driving syst em s  
Hill-start assist control  
Hill-start assist control helps to prevent the vehicle from rolling  
backwards when starting on an incline or slippery slope.  
To engage hill-start assist con-  
trol, further depress the brake  
pedal when the vehicle is  
stopped completely.  
A buzzer will sound once to  
indicate the system is acti-  
vated. The slip indicator will  
also start flashing.  
2
Hill-start assist control can be operated when  
The shift position is in a position other than P.  
The parking brake is not applied.  
The accelerator pedal is not depressed.  
Hill-start assist control  
While hill-start assist control is operating, the brakes remain automati-  
cally applied after the driver releases the brake pedal. The stop lights and  
the high mounted stoplight turn on.  
Hill-start assist control operates for about 2 seconds after the brake pedal  
is released.  
If the slip indicator does not flash and the buzzer does not sound when  
the brake pedal is further depressed, slightly reduce the pressure on the  
brake pedal (do not allow the vehicle to roll backward) and then firmly  
depress it again. If the system still does not operate, check if the operat-  
ing conditions explained above have been met.  
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2-4. Using other driving systems  
Hill-start assist control buzzer  
When hill-start assist control is activated, the buzzer will sound once.  
In the following situations, hill-start assist control will be canceled and the  
buzzer will sound twice.  
• No attempt is made to drive the vehicle within approximately 2 seconds  
of releasing the brake pedal.  
• Push the P position switch.  
• The parking brake is applied.  
• The brake pedal is depressed again.  
• The brake pedal has been depressed for more than approximately 3  
minutes.  
If the slip indicator light comes on  
It may indicate a malfunction in the system. Contact your Toyota dealer.  
CAUTION  
Hill-start assist control  
Do not overly rely on the hill-start assist control. Hill-start assist control  
may not operate effectively on extremely steep inclines or roads covered  
in ice.  
Unlike the parking brake, hill-start assist control is not intended to hold the  
vehicle stationary for an extended period of time. Do not attempt to use  
hill-start assist control to hold the vehicle on an incline for an extended  
period of time, as doing so may lead to an accident.  
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