2021 YAMAHA TRICITY 300 warning

Smart key system
3-8
3and confirmation with the smart key
has taken place, the main switch can
be turned while the smart key system
indicator light is on (approximately 4
seconds).
WARNING
EWA18720
Never turn the main switch to
“OFF”, “ ”, or “OPEN” while the ve-
hicle is movin
g. Otherwise the elec-
trical systems will b e switched off,
which may result in loss of control or
an acci dent.TIPDo not push the main switch knob re-
peatedly or turn the main switch back
and forth beyond normal use. Other-
wise, to protect the main switch from
damage, the smart key system will
temporarily disable and the smart key
system indicator light will flash. If this
occurs, wait until the indicator light
stops flashing before operating the
main switch again.The main switch positions are de-
scribed below.
EAU76502
ON
All electrical circuits are supplied with
power, and the engine can be started.
To turn the vehicle power on1. Turn the smart key on and bring it
within operating range.
2. Push the main switch knob and the smart key indicator light will
come on for approximately 4 sec-
onds.
3. While the smart key system indi- cator light is on, turn the main
switch to “ON”. All of the turn sig-
nal lights will flash twice and the
vehicle power will turn on.
TIPIf the vehicle battery voltage is
low, the turn signal lights will not
flash.
 See “Emergency mode” on page
8-40 for information on turning the
vehicle power on without the
smart key.
EAU76511
OFF
All electrical systems are off.
To turn the vehicle power off1. With the smart key turned on and
within operating range, turn the
main switch to “OFF”.
1. Push.
2. Turn.1 2
1. Turn.
1
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Standin g assist
4-1
4
EAU89245
Stan din g assistThe standing assist helps the rider to
keep the vehicle upright when
stopped, or when parking. When you
press the standing assist switch, the
assist will engage to help you to keep
the vehicle at its current lean angle.
WARNING
EWA20983
 When you push the vehicle, b e
sure to turn the vehicle power
off. Otherwise uninten ded d is-
en gag in g of the stan din g assist
coul d result. 
Always disen gag e the stan din g
assist un der the followin g situa-
tions. Otherwise uninten ded
loss of b alance coul d result an d
lea d to vehicle overturn.
When travelin g on roa ds with
o bstacles (e. g. roa d humps,
si dewalk)
When the vehicle is on un- pave d or rou gh groun d.
When the vehicle is on a slope.
Gettin g on an d off
When getting on the vehicle, make
sure the vehicle power is off, and apply
the front or rear brake.
When getting off the vehicle, apply the
parking brake and turn the vehicle
power off.
WARNING
EWA20993
When the vehicle is stoppe d with the
stan din g assist en gag ed , never step
on only one footrest, nor load lug-
g ag e unevenly on the vehicle. Other- wise uninten
ded loss of b alance
may result, which coul d lea d to vehi-
cle overturn.
Stan din g assist operation
WARNING
EWA21003
The stan din g assist can b e operated
even when the vehicle is leanin g.
Therefore, keep the followin g in
mind :
 Never en gag e the stan din g as-
sist while movin g. Otherwise
the vehicle will be hel d at an un-
inten ded lean an gle, which may
result in loss of control.
 Be sure to disen gag e the stan d-
in g assist b efore startin g off.
Otherwise the stan din g assist
will uninten ded ly disen gag e,
an d may cause loss of b alance.Engaging the standing assist1. Stop the vehicle and close the
throttle completely. The standing
assist indicator light starts flash-
ing.
1. Standing assist indicator light “ ”
1
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Standin g assist
4-2
4
2. Press the standing assist switch
once.
3. The standing assist indicator light comes on and the beeper sounds
once. The assist is now engaged.
En gag in g con ditions of the stan din g
assist
The standing assist can be engaged
when the following conditions are met:  Vehicle speed is 10 km/h (6 mi/h)
or less with vehicle power on
 Engine speed is 2000 r/min or less
 Throttle grip is in fully closed posi-
tion with engine running
 Standing assist warning light is off
 Standing assist switch is on
NOTICE
ECA26993
If the vehicle battery volta ge is low,
the stan din g assist may hol d at its
current position even if the switch is
operated . To prevent this from oc-
currin g, avoi d improper use such as
the followin g:
 Pushin g the en gine start switch
an d the stan din g assist switch
at the same time. 
Operatin g the stan din g assist
repeated ly when the en gine is
not runnin g.
Disengaging the standing assist1. Stop the vehicle and hold it up-
right.
2. Press the standing assist switch twice.
3. The standing assist indicator light flashes, and the beeper sounds
twice. The assist is now disen-
gaged.
Automatic disen gag in g con ditions
of the stan din g assist
The standing assist disengages auto-
matically when one of the following
conditions is detected.  Vehicle speed is over 10 km/h (6
mi/h) with vehicle power on
 Engine speed is over 2300 r/min
 Throttle grip is turned with engine
running
WARNING
EWA21013
Do not race the en gine when
stoppe d an d the stan din g assist
is en gag ed . Otherwise the stan
din g assist will disen gag e
an d may cause a loss of bal-
ance.
 Do not coast with the vehicle
power off. Otherwise, if you turn
the vehicle power on while the
vehicle is coastin g, the stan din g
assist may disen gag e, which
coul d cause a loss of balance.
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Instrument and control functions
5-1
5
EAU4939P
In dicator li ghts an d warnin g
li g hts
EAU88900
Turn si gnal in dicator li ghts “ ”
an d“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
EAU88910
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU89121
Parkin g b rake in dicator li ght “ ”
This indicator light comes on when the
parking brake is applied.
EAU88880
Coolant temperature warnin g
li g ht “ ”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool. (See page 8-39.)
For vehicles with a radiator fan, the ra-
diator fan(s) automatically switch on or
off according to the coolant tempera-
ture.
TIPWhen the vehicle is turned on, the light
will 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.NOTICE
ECA10022
Do not continue to operate the en-
g ine if it is overheatin g.
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.
1. ABS warning light “ ”
2. Smart key system indicator light “ ”
3. Left turn signal indicator light “ ”
4. Coolant temperature warning light “ ”
5. Parking brake indicator light “ ”
6. Standing assist indicator light “ ”
7. High beam indicator light “ ”
8. Standing assist warning light “ ”
9. Right turn signal indicator light “ ”
10.Traction control system indicator light “ ”
11.Malfunction indicator light “ ”1
11
2
3
4
5
6
7
8
9
10
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Instrument and control functions
5-2
5
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.
EAU88890
ABS warnin g lig ht “ ”
This warning light comes on when the
vehicle is first turned on, and goes off
after starting riding. If the warning light
comes on while riding, the anti-lock
brake system may not work correctly.
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 li ght 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
while revving the engine with the vehi-
cle on its centerstand, but this does
not indicate a malfunction.
EAU88930
Traction control system in dicator
li g 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.
(See page 5-14.)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 vehicle.
EAU89252
Stan din g assist in dicator li ght “ ”
This indicator light flashes when the
standing assist can be used.
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Instrument and control functions
5-3
5 The indicator light comes on when the
standing assist is engaged.
TIPWhen the vehicle is turned on, the light
will come on for a few seconds, and
then go off. If the light does not come
on, have a Yamaha dealer check the
vehicle.
EAU89262
Stan
din g assist warnin g lig ht “ ”
This warning light comes on if a prob-
lem is detected in the standing assist.
If this occurs, have a Yamaha dealer
check the system.TIP Depending on the problem, the
engine speed may be limited and
the vehicle cannot be driven nor-
mally.
 When the vehicle is turned on, the
light will come on for a few sec-
onds, 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.
EAU86811
Multi-function meter unit1. Fuel meter
2. Clock
3. Icy road warning indicator “ ”
4. Tachometer
5. Speedometer
6. Multi-function display
1. “SEL/RES” switch1
2
3
4
5
6
1
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Instrument and control functions
5-4
5
WARNING
EWA12423
Be sure to stop the vehicle before
makin g any settin g chan ges to the
multi-function meter unit. Chang ing
settin gs while ri din g can distract the
operator an d increase the risk of an
acci dent.
EAU89230
Switchin g the display units
The display units can be switched be-
tween kilometers and miles.
To switch the display units1. Turn the vehicle off.
2. While pushing the “SEL” switch, turn the vehicle on.
3. Continue to push the “SEL” switch for at least 5 seconds.
EAU86831
Spee dometer
The speedometer shows the vehicle’s
traveling speed.
EAU87180
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.NOTICE
ECA23050
Do not operate the en gine in the ta-
chometer hi gh-r/min zone.
Hi gh-r/min zone: 9000 r/min an d
a b ove
EAU86841
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When approximately
2.4 L (0.63 US gal, 0.53 Imp.gal) of fuel
remains, the last segment starts flash-
ing. Refuel as soon as possible.TIPIf a problem is detected in the electrical
circuit, the fuel level segments will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.
1. Tachometer
2. High-r/min zone
1
2
1. Fuel meter
1
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Instrument and control functions
5-8
5

“AVE_ _._ MPG”: the average dis-
tance that can be traveled on
1.0 Imp.gal of fuel.
TIPTo reset the display, push the
“RES” switch until it resets.
 After resetting, “_ _._” is shown
until the vehicle has traveled some
distance.
EAU89201
Traction control system display
This display shows the current status
of the traction control system. (See
page 5-14.)  “TCS On”: the system is on
 “TCS OFF”: the system is off
TIP
communication error within the vehi-
cle. Have a Yamaha dealer check the
vehicle as soon as possible.
EAU89210
Air temperature display
This display shows the air temperature
from –10 °C to 40 °C in 1 °C incre-
ments. The temperature displayed may
vary from the actual ambient tempera-
ture.
The icy road warning indicator “ ” will
flash when the detected temperature is
3 °C or lower.
TIP…10 °C will be displayed even if the am-
bient temperature is lower, and 40 °C
will be displayed even if the ambient
temperature is higher.
EAU89220
Battery volta ge display
This display shows the current charge
state of the battery.TIPIf the battery voltage is less than 9.0 V,

1. Traction control system display
1
1. Air temperature display
2. Icy road warning indicator Ž
1
2
1. Battery voltage display
1
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