2021 YAMAHA TMAX warning light

Instrument and control functions
5-3
5
EAU88690
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU77551
Cruise control in dicator li ghts
See page 4-1 for an explanation of
these indicator lights.
EAU88711
Malfunction in dicator li ght
(MIL) “ ”
This light comes on or flashes if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system. The electri-
cal circuit of the warning light can be
checked by vehicle power on. The light
should come on for a few seconds,
and then go off. If the light does not
come on initially when the vehicle pow-
er on, or if the light remains on, have a
Yamaha dealer check the vehicle.
NOTICE
ECA26820
If the MIL starts flashin g, re duce en-
g ine spee d to prevent exhaust sys-
tem damag e.TIPThe engine is sensitively controlled for
the on-board diagnostic system to de-
tect deterioration and malfunction of
the emission control system. Due to
this specification, the MIL may come
on or flash for vehicle modifications,
lack of maintenance, or excessive or
improper use of the vehicle. To prevent
this, observe these precautions.
 Do not attempt to modify the soft-
ware of the engine control unit.
 Do not add any electrical acces-
sories that interfere with engine
control.
 Do not use aftermarket accesso-
ries or parts such as suspension,
spark plugs, injectors, exhaust
system, etc.
 Do not change drivetrain specifi-
cations (chain, sprockets, wheels,
tires, etc.). 
Do not remove or alter the O2 sen-
sor, air induction system, or ex-
haust parts (catalysts or EXUP,
etc.).
 Maintain proper V-belt and drive
belt (if equipped).
 Maintain correct tire pressure.
 Do not operate the vehicle in an
extreme manner. For example, re-
peated or excessive opening and
closing of the throttle, racing,
burnouts, wheelies, etc.
EAU77075
ABS warnin g li ght “ ”
This warning light comes on when a
problem is detected with the ABS. (See
page 5-19.)
When the vehicle power is turned on,
this light will come on and then go off
after reaching a traveling speed of 10
km/h (6 mi/h). If the warning light:  does not come on when the vehi-
cle power is turned on
 does not go off after traveling at a
speed of 10 km/h (6 mi/h) or high-
er
 comes on or flashes while riding
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Instrument and control functions
5-4
5
the anti-lock brake system may not
work correctly. Have a Yamaha dealer
check the vehicle as soon as possible.
WARNING
EWA16043
If the ABS warnin
g li ght does not
turn off after reachin g 10 km/h (6
mi/h), or if the warnin g lig ht comes
on while ri din g:
 Use extra caution to avoi d pos-
si ble wheel lock durin g emer-
g ency brakin g.
 Have a Yamaha dealer check
the vehicle as soon as possi ble.TIPThe ABS warning light may come on
when revving the engine with the
scooter on its centerstand, but this
does not indicate a malfunction.
EAU88700
Traction control system in dicator
lig ht “ ”
This indicator light will flash when trac-
tion control has engaged.
If the traction control system is turned
off, this indicator light will come on.
TIPWhen the vehicle is turned on, the light
should come on for a few seconds and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle.
EAU78083
Smart key system in dicator
li g ht “ ”
This indicator light will flash when com-
munication between the vehicle and
smart key takes place and when cer-
tain smart key system operations are
carried out.
The indicator light may also flash when
there is an error in the smart key sys-
tem.TIPWhen the vehicle is turned on, the light
should come on for a few seconds and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle.
EAU77131
Spee dometerThe speedometer shows the vehicle’s
traveling speed.
When the vehicle power is turned on,
the speedometer needle will sweep
across the speed range and return to
zero in order to test the electrical cir-
cuit.1. Speedometer
1 1 1
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Instrument and control functions
5-19
5
EAU65582
Anti-lock brake system (ABS)This model’s ABS features a dual elec-
tronic control system, which acts on
the front and rear brakes independent-
ly.
Operate the brakes with ABS as you
would conventional brakes. If the ABS
is activated, a pulsating sensation may
be felt at the brake levers. In this situa-
tion, continue to apply the brakes and
let the ABS work; do not “pump” the
brakes as this will reduce braking ef-
fectiveness.
WARNING
EWA16051
Always keep a sufficient d istance
from the vehicle ahea d to match the
ri din g speed even with ABS.
 The ABS performs best with
lon g b rakin g d istances.
 On certain surfaces, such as
rou gh or g ravel roa ds, the b rak-
in g d istance may b e longer with
the ABS than without.The ABS is monitored by an ECU,
which will revert the system to conven-
tional braking if a malfunction occurs.
TIP The ABS performs a self-diagno-
sis test each time the vehicle is
turned on and travels at a speed of
10 km/h (6 mi/h) or higher. During
this test, a clicking noise can be
heard and if either brake lever is
even slightly applied, a vibration
can be felt at the lever, but this
does not indicate a malfunction.
 This ABS has a test mode which
allows the owner to experience
the pulsation at the brake levers
when the ABS is operating. How-
ever, special tools are required, so
please consult your Yamaha deal-
er.NOTICE
ECA20100
Be careful not to damag e the wheel
sensor or wheel sensor rotor; other-
wise, improper performance of the
ABS will result.
1. Front wheel sensor rotor
2. Front wheel sensor
1. Rear wheel sensor rotor
2. Rear wheel sensor
1212
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Instrument and control functions
5-20
5
EAU77324
Fuel tank capTo access the fuel tank, open the fuel
tank cap lid. (See page 3-11.)
To remove the fuel tank cap, press the
lock release button and turn the fuel
tank cap counterclockwise. To install the fuel tank cap, turn it
clockwise until the lock release button
pops out.
WARNING
EWA11263
Make sure that the fuel tank cap is
properly installe
d an d locked in
place before operatin g the vehicle.
Leakin g fuel is a fire hazar d.
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flammab le. To avoid fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.
1. Fuel tank cap lid
1. Lock release button
2. Fuel tank cap
1
1 2
UB3TE1E0.book Page 20 Friday, September 11, 2020 8:48 AM

Operation and important rid ing points
7-2
7
EAU88770
Startin g the eng ineThe ignition circuit cut-off system will
enable starting when the sidestand is
up.
To start the engine1. With the smart key turned on, ap-
proach the vehicle.
2. Push the “ON/ ” switch and set the engine stop switch to the run
position.
Upon authentication of the smart
key, the beeper will sound twice
and the centerstand and steering
locks (if applied) will be released.
3. Confirm the indicator and warning light(s) come on for a few sec-
onds, and the go off. (See page
5-2.)TIPDo not start the engine if the mal-
function indicator light remains on.
 The ABS warning light should
come on and stay on until the ve-
hicle reaches a speed of 10 km/h
(6 mi/h).
NOTICE
ECA24110
If a warnin g or in dicator li ght does
not work as d escribed a bove, have a
Yamaha dealer check the vehicle.4. Close the throttle completely.
5. While applying the front or rear
brake, push the “ON/ ” switch.
6. Release the “ON/ ” switch when the engine starts, or after 5 sec-
onds. Wait 10 seconds before
pressing the switch again to allow
battery voltage to restore.NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAU88780
TIPThis model is equipped with:
 a lean angle sensor. This sensor
stops the engine in case of a vehi-
cle turnover. If this happens, the
malfunction indicator light will
come on, but this is not a malfunc-
tion. Turn the vehicle power off
and then back on again to cancel
the indicator light. Failing to do so
will prevent the engine from start-
ing even though the engine will
crank when pushing the start
switch.
 an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. If the engine
stops, simply push the start
switch to restart the engine.
UB3TE1E0.book Page 2 Friday, September 11, 2020 8:48 AM

Periodic maintenance an d a djustment
8-33
8 5. Remove the inner panel by remov-
ing the bolts and quick fasteners.
6. Install the inner panel by installing the bolts and quick fasteners. 7. Install the windshield by installing
the screws.
8. Install the caps.
9. Install the screw access covers by installing the quick fasteners.
10. Install the panel.
If a fuse is blown, replace it as follows. 1. Turn the vehicle power off.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive d am-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
1. Windshield
2. Screw
1. Inner panel
2. Bolt
3. Quick fastener
1
2
2 21 2
2
3 3
2
1. Screw access cover
1
Specified fuses:
Main fuse:
40.0 A
Headlight fuse:
7.5 A
Taillight fuse: 7.5 A
Signaling system fuse: 7.5 A
Ignition fuse:
7.5 A
Radiator fan motor fuse: 15.0 A
Fuel injection system fuse: 7.5 A
ABS control unit fuse:
7.5 A
ABS motor fuse: 30.0 A
ABS solenoid fuse: 15.0 A
Auxiliary DC jack fuse:
2.0 A
Backup fuse: 15.0 A
Electronic throttle valve fuse: 7.5 A
Brake light fuse:
1.0 A
Cruise control fuse: 1.0 A
Windshield motor fuse: 20.0 A
UB3TE1E0.book Page 33 Friday, September 11, 2020 8:48 AM

Periodic maintenance an d a djustment
8-35
8 3. Remove the burnt-out bulb by
pulling it out.
4. Insert a new bulb into the socket, and push the socket in place.
5. Install the license plate unit onto the rear fender.
6. Install the nuts and tighten to the specified torque.
EAU25865
Trou bleshootin gAlthough your Yamaha received a thor-
ough inspection before shipment from
the factory, trouble may occur during
operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your vehicle re-
quire any repair, take it to an
authorized Yamaha dealer whose
skilled technicians have the necessary
tools, experience, and know-how to
properly service your Yamaha vehicle.
Be sure to use only genuine Yamaha
replacement parts. Although imitation
parts may look similar to genuine parts,
they are often inferior in quality, have a
shorter service life, and can lead to an
expensive repair bill later on.
WARNING
EWA15142
When checkin g the fuel system, do
not smoke, an d make sure there are
no open flames or sparks in the ar- ea, inclu
din g pilot li ghts from water
heaters or furnaces. Gasoline or
g asoline vapors can i gnite or ex-
plod e, causin g severe injury or prop-
erty damag e.
EAU77992
Smart key system trou bleshootin g
Please check the following items when
the smart key system does not work.  Is the smart key turned on? (See
page 3-5.)
 Is the smart key battery dis-
charged? (See page 3-6.)
 Is the smart key battery installed
correctly? (See page 3-6.)
 Is the smart key being used in a lo-
cation with strong radio waves or
other electromagnetic noise? (See
page 3-1.)
 Are you using the smart key that is
registered to the vehicle?
 Is the vehicle battery discharged?
When the vehicle battery is dis-
charged, the smart key system will
not operate. Please have the vehi-
cle battery charged or replaced.
(See page 8-30.)
1. Collar
2. License plate light bulb
3. License plate light unitTightenin g torque:
License plate light unit nut:
3.8 N·m (0.38 kgf·m, 2.8 lb·ft)
3
2
1
UB3TE1E0.book Page 35 Friday, September 11, 2020 8:48 AM

Scooter care and storage
9-2
9
chemicals such as, solvents,
g
asoline, rust removers, b rake
flui d, or antifreeze, etc.
Before washin g
1. Park the vehicle out of direct sun- light and allow it to cool. This will
help avoid water spots.
2. Make sure all caps, covers, elec- trical couplers and connectors are
tightly installed.
3. Cover the muffler end with a plas- tic bag and a strong rubber band.
4. Pre-soak stubborn stains like in- sects or bird droppings with a wet
towel for a few minutes.
5. Remove road grime and oil stains with a quality degreasing agent
and a plastic-bristle brush or
sponge. NOTICE: Do not use
d eg reasin g a gent on areas re-
quirin g lu brication such as
seals, gaskets, an d wheel axles.
Follow pro duct instructions.
[ECA26290]
Washin g
1. Rinse off any degreaser and spray down the vehicle with a garden
hose. Use only enough pressure
to do the job. Avoid spraying wa-
ter directly into the muffler, instru-
ment panel, air inlet, or other inner
areas such as underseat storage
compartments.
2. Wash the vehicle with a quality au- tomotive-type detergent mixed
with cool water and a soft, clean
towel or sponge. Use an old tooth-
brush or plastic-bristle brush for
hard-to-reach places. NOTICE:
Use col d water if the vehicle has
b een exposed to salt. Warm wa-
ter will increase salt’s corrosive
properties.
[ECA26301]
3. For windshield-equipped vehicles: Clean the windshield with a soft
towel or sponge dampened with
water and a pH neutral detergent.
If necessary, use a high-quality
windshield cleaner or polish for
motorcycles. NOTICE: Never use
any stron g chemicals to clean
the wind shield. Additionally,
some cleanin g compoun ds for plastic may scratch the win
d-
shiel d, so b e sure to test all
cleanin g pro ducts before gen-
eral application.
[ECA26310]
4. Rinse off thoroughly with clean water. Be sure to remove all deter-
gent residues, as they can be
harmful to plastic parts.
After washin g
1. Dry the vehicle with a chamois or absorbent towel, preferably mi-
crofiber terrycloth.
2. For drive chain-equipped models: Dry and then lubricate the drive
chain to prevent rust.
3. Use a chrome polish to shine chrome, aluminum, and stainless
steel parts. Often the thermally in-
duced discoloring of stainless
steel exhaust systems can be re-
moved through polishing.
4. Apply a corrosion protection spray on all metal parts including
chrome or nickel-plated surfaces.
WARNING! Do not apply sili- cone or oil spray to seats, han d
g rips, ru bber foot pe gs or tire
trea ds. Otherwise these parts
UB3TE1E0.book Page 2 Friday, September 11, 2020 8:48 AM