INFORMATION BEFORE DRIVING YOUR TOYOTA -> Brake system for Your Toyota Avalon 4 Door Second Generation (2000-2004)

’03 AVALON U (L/O 0206)  
Iridium−tipped spark plugs  
Brake system  
The diluting ingredients evaporate out  
when the vehicle is then driven at high  
speeds, as on an expressway, making it  
appear that oil is excessively consumed  
after driving at high speeds.  
The tandem master cylinder brake system  
is a hydraulic system with two separate  
sub−systems. If either sub−system should  
fail, the other will still work. However, the  
pedal will be harder to press, and your  
stopping distance will be longer. Also, the  
brake system warning light may come on.  
IMPORTANCE OF ENGINE OIL LEVEL  
CHECK  
One of the most important points in prop-  
er vehicle maintenance is to keep the en-  
gine oil at the optimum level so that oil  
function will not be impaired. Therefore, it  
is essential that the oil level be checked  
regularly. Toyota recommends that the oil  
level be checked every time you refuel  
the vehicle.  
CAUTION  
Do not drive your vehicle with only a  
single brake system. Have your  
brakes fixed immediately.  
Your engine is fitted with iridium−tipped  
spark plugs.  
BRAKE BOOSTER  
The brake booster uses engine vacuum to  
power−assist the brakes. If the engine  
should quit while you are driving, you can  
bring the vehicle to a stop with normal  
pedal pressure. There is enough reserved  
vacuum for one or two stops—but no  
more!  
NOTICE  
NOTICE  
Failure to check the oil level regularly  
could lead to serious engine trouble  
due to insufficient oil.  
Use only iridium−tipped spark plugs  
and do not adjust gaps for your en-  
gine performance and smooth drive-  
ability.  
For detailed information on oil level check,  
see “Checking the engine oil level” in Sec-  
tion 7−2.  
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ANTI−LOCK BRAKE SYSTEM  
(with “ABS” warning light)  
Depressing the brake pedal on slippery  
road surfaces such as on the manhole  
cover, the steel plate under the construc-  
tion, joints in the bridge, etc. on a rainy  
day tends to activate the anti−lock brake  
system.  
CAUTION  
The anti−lock brake system is designed  
to help prevent lock−up of the wheels  
during a sudden braking or braking on  
slippery road surfaces. This assists in  
providing directional stability and steer-  
ing performance of the vehicle under  
these circumstances.  
D Do not pump the brake pedal if the  
engine stalls. Each push on the  
pedal uses up your reserved vacu-  
um.  
You may hear a click or motor sound in  
the engine compartment for a few seconds  
when the engine is started or just after  
the vehicle is started. This means that the  
anti−lock brake system is in the self  
check mode, and does not indicate a mal-  
function.  
D Even if the power assist is com-  
pletely lost, the brakes will still  
work. But you will have to push the  
pedal hard, much harder than nor-  
mal. And your braking distance will  
be longer.  
Effective way to press the ABS brake  
pedal: When the anti−lock brake system  
function is in action, you may feel the  
brake pedal pulsating and hear a noise.  
In this situation, to let the anti−lock  
brake system work for you, just hold the  
brake pedal down more firmly. Do not  
pump the brake in a panic stop. This  
will result in reduced braking performan-  
ce.  
When the anti−lock brake system is ac-  
tivated, the following conditions may  
occur. They do not indicate a malfunc-  
tion of the system:  
D You may hear the anti−lock brake sys-  
tem operating and feel the brake pedal  
pulsating and the vibrations of the ve-  
hicle body and steering wheel. You  
may also hear the motor sound in the  
engine compartment even after the ve-  
hicle is stopped.  
The anti−lock brake system becomes op-  
erative after the vehicle has accelerated  
to a speed in excess of approximately 10  
km/h (6 mph). It stops operating when the  
vehicle decelerates to  
approximately 5 km/h (3 mph).  
a
speed below  
D At the end of the anti−lock brake sys-  
tem activation, the brake pedal may  
move a little forward.  
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Anti−lock brake system is not de-  
CAUTION  
signed to shorten the stopping dis-  
tance: Always drive at the moderate  
speed and maintain a safe distance  
from the vehicle in front of you.  
Compared with vehicles without an  
anti−lock brake system, your vehicle  
Do not overestimate the anti−lock  
brake system: Although the anti−lock  
brake system assists in providing ve-  
hicle control, it is still important to  
drive with all due care and maintain  
a moderate speed and safe distance  
from the vehicle in front of you, be-  
cause there are limits to the vehicle  
stability and effectiveness of steering  
wheel operation even with the anti−  
lock brake system on.  
may require  
tance in the following cases:  
a
longer stopping dis-  
D Driving on rough, gravel or snow−  
covered roads.  
D Driving with tire chains installed.  
Type A  
D Driving over the steps such as the  
joints on the road.  
If tires grip performance exceeds its  
capability, or if hydroplaning occurs  
during high speed driving in the rain,  
the anti−lock brake system does not  
provide vehicle control.  
D Driving on roads where the road  
surface is pitted or has other differ-  
ences in surface height.  
Install all 4 tires of specified size at  
appropriate pressure: The anti−lock  
brake system detects vehicle speeds  
using the speed sensors for respec-  
tive wheels’ turning speeds. The use  
of tires other than specified may fail  
to detect the accurate turning speed  
resulting in  
tance.  
a
longer stopping dis-  
Type B  
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“ABS” warning light  
D The light comes on while you are driv-  
ing.  
BRAKE ASSIST SYSTEM  
The light comes on when the ignition key  
is turned to the “ON” position. If the anti−  
lock brake system and the brake assist  
system work properly, the light turns off  
When you slam the brakes on, the  
brake assist system judges as an emer-  
gency stop and provides more powerful  
braking for a driver who cannot hold  
down the brake pedal firmly.  
A warning light turning on briefly during  
operation does not indicate a problem.  
after  
a
few seconds. Thereafter, if the  
CAUTION  
system malfunctions, the light comes on  
again.  
When you slam the brakes on, more pow-  
erful braking will be applied. At this time,  
If the “ABS” warning light remains on  
together with the brake system warn-  
ing light, immediately stop your ve-  
hicle at a safe place and contact your  
Toyota dealer.  
When the “ABS” warning light is on (and  
the brake system warning light is off), the  
anti−lock brake system, the brake assist  
system, the traction control system and  
the vehicle skid control system do not  
operate, but the brake system still oper-  
ates conventionally.  
you may hear  
a
sound in the engine  
compartment and feel the vibration of the  
brake pedal. This does not indicate a mal-  
function.  
In this case, not only the anti−lock  
brake system will fail but also the  
vehicle will become extremely unsta-  
ble during braking.  
The brake assist system becomes opera-  
tive after the vehicle has accelerated to  
a speed in excess of approximately 10  
km/h (6 mph). It stops operating when the  
When the “ABS” warning light is on (and  
the brake system warning light is off), the  
anti−lock brake system does not operate  
so that the wheels could lock up during  
a sudden braking or braking on slippery  
road surfaces.  
vehicle decelerates to  
approximately 5 km/h (3 mph).  
a
speed below  
DRUM−IN−DISC TYPE PARKING BRAKE  
SYSTEM  
For an explanation of this system’s warn-  
ing light, see “Service reminder indicators  
and warning buzzers” in Section 1−5.  
Your vehicle has  
a
drum−in−disc type  
parking brake system. This type of brake  
system needs bedding−down of the brake  
shoes periodically or whenever the parking  
brake shoes and/or drums are replaced.  
If either of the following conditions  
occurs, this indicates  
a
malfunction  
somewhere in the parts monitored by  
the warning light. Contact your Toyota  
dealer as soon as possible to service  
the vehicle.  
Have your Toyota dealer perform the bed-  
ding−down.  
D The light does not come on when the  
ignition key is turned to the “ON” posi-  
tion, or remains on.  
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