2013-2018 Toyota Avalon 4 Door Driving -> Driving assist systems User Manual
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Driving -> Driving assist systems for Your Toyota Avalon 4 Door Fourth Generation (2013-2018)

250  
4-5. Using the driving support systems  
Driving assist systems  
To help enhance driving safety and performance, the following  
systems operate automatically in response to various driving  
situations. Be aware, however, that these systems are supple-  
mentary and should not be relied upon too heavily when operat-  
ing 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  
spinning 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  
◆ BSM (Blind Spot Monitor) (if equipped)  
→P. 239  
251  
4-5. Using the driving support systems  
When the TRAC/VSC systems are operating  
The slip indicator light will flash  
while the TRAC/VSC systems are  
operating.  
Disabling the TRAC system  
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may  
reduce power from the engine to the wheels. Pressing the switch to  
turn the system off may make it easier for you to rock the vehicle in  
order to free it.  
4
To turn the TRAC system off,  
quickly press and release the  
switch.  
The “TRAC OFF” and a message  
will be shown on the multi-informa-  
tion display.  
Press the switch again to turn the  
system back on.  
252  
4-5. Using the driving support systems  
■Turning off both TRAC/VSC systems  
To turn the TRAC/VSC systems off, press and hold the switch for more than 3  
seconds while the vehicle is stopped.  
The VSC OFF and “TRAC OFF” and a message will be shown on the multi-  
information display*.  
Press the switch again to turn the systems back on.  
*: On vehicles with pre-collision system, pre-collision brake assist and pre-  
collision braking will also be disabled. The pre-collision system warning  
light will come on and the message will be shown on the multi-information  
display. (→P. 210)  
■When the message is displayed on the multi-information display show-  
ing that TRAC has been disabled even if the TRAC/VSC OFF switch has  
not been pressed  
TRAC cannot be operated. Contact your Toyota dealer.  
■Sounds and vibrations caused by the ABS, brake assist, VSC and TRAC  
systems  
●A sound may be heard from the engine compartment when the brake pedal  
is depressed repeatedly, when the engine is started or just after the vehicle  
begins to move. This sound does not indicate 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 after the ABS is activated.  
• The brake pedal may move down slightly after the ABS is activated.  
■EPS operation sound  
When the steering wheel is operated, a motor sound (whirring sound) may be  
heard. This does not indicate a malfunction.  
■Automatic reactivation of TRAC and VSC systems  
After turning the TRAC and VSC systems off, the systems will be automati-  
cally re-enabled in the following situations:  
●When the engine switch is turned off  
●If only the TRAC system is turned off, the TRAC will turn on when vehicle  
speed increases  
If both the TRAC and VSC systems are turned off, automatic re-enabling will  
not occur when vehicle speed increases.  
■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.  
253  
4-5. Using the driving support systems  
WARNING  
■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.  
■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  
following 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 uneven surfaces  
■TRAC may not operate effectively when  
4
Directional control and power may not be achievable while driving on slip-  
pery road surfaces, even if the TRAC 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.  
■When the TRAC/VSC systems are turned off  
Be especially careful and drive at a speed appropriate to the road condi-  
tions. As these are the systems to help ensure vehicle stability and driving  
force, do not turn the TRAC/VSC systems off unless necessary.  
254  
4-5. Using the driving support systems  
WARNING  
■Replacing tires  
Make sure that all tires are of the specified size, brand, tread pattern and  
total load capacity. In addition, make sure that the tires are inflated to the  
recommended tire inflation pressure level.  
The ABS, TRAC and VSC systems will not function correctly if different tires  
are installed on the vehicle.  
Contact your Toyota dealer 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.  

Related Topics

Driving
Before driving Driving the vehicle Cargo and luggage Vehicle load limits Trailer towing Dinghy towing Driving procedures Engine (ignition) switch Automatic transmission Turn signal lever Parking brake Operating the lights and wipers Headlight switch Automatic High Beam Windshield wipers and washer Refueling Opening the fuel tank cap Using the driving support systems Toyota Safety Sense P PCS (Pre-Collision System) LDA (Lane Departure Alert with steering control) Dynamic radar cruise control Cruise control BSM (Blind Spot Monitor) Driving mode select switches Driving tips / Winter driving tips

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