When driving -> Using other driving systems for Your Toyota Aygo SUV First Generation (2005-2014)

2-4. Using other driving systems  
Driving assist systems  
To help enhance driving safety and performance, the following sys-  
tems operate automatically in response to various driving situations.  
Be aware, however, that these systems are supplementary and  
should not be relied upon too heavily 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) (if equipped)  
Helps the driver to control skidding when swerving suddenly or turning  
on slippery road surfaces.  
TRC (Traction Control) (if equipped)  
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) (if equipped)  
Employs an electric motor to reduce the amount of effort needed to turn  
the steering wheel.  
When the VSC/TRC systems are operating  
The slip indicator light flashes to  
indicate that the VSC/TRC sys-  
tems are operating.  
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2-4. Using other driving systems  
Sounds and vibrations caused by the ABS, brake assist, VSC and TRC  
systems  
A sound may be heard from the engine compartment when the engine is  
started or just after the vehicle begins to move. This sound does not indi-  
cate 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 while the ABS is operating.  
• The brake pedal may move down slightly after the ABS is activated.  
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EPS operation sound  
When the steering wheels is operated, a motor sound (whirring sound) may  
be heard. This does not indicate a malfunction.  
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 engine  
off. The EPS system should return to normal within 10 minutes.  
CAUTION  
The ABS does not operate effectively when  
The limits of tire gripping performance have been exceeded (such as  
excessively worn tires on a snow covered road).  
The vehicle hydroplanes while driving at high speed on wet or slick roads.  
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2-4. Using other driving systems  
CAUTION  
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, especially in the fol-  
lowing 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 surfaces  
TRC may not operate effectively when  
Directional control and power may not be achievable while driving on slip-  
pery road surfaces, even if the TRC system is operating.  
Drive the vehicle carefully 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.  
Replacing tires  
Observe the following precautions.  
Failure to do so may cause the ABS, VSC and TRC systems not to function  
correctly.  
Make sure that all tires are of the specified size, brand, tread pattern and  
total load capacity.  
Do not use tires of noticeably different wear level.  
Make sure that the tires are inflated to the recommended tire inflation  
pressure level. (P. 355)  
Contact any authorized Toyota dealer or repairer, or another duly qualified  
and equipped professional for further information when replacing tires or  
wheels.  
Handling of tires and the suspension  
Using tires with any kind of problem or modifying the suspension will affect  
the driving assist systems, and may cause a system to malfunction.  
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