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4047-3. Do-it-yourself maintenance
AYGO_OM_Europe_OM99R19E
■LED Lights 
The front position lights, daytime running lights and tail lights consist of a 
number of LEDs. If any of the LEDs burn out, take your vehicle to any autho- 
rized Toyota retailer or Toyota author ized repairer, or any reliable repairer to 
have the light replaced. 
■ Condensation build-up on the inside of the lens 
Temporary condensation build-up on the inside of the headlight lens does not 
indicate a malfunction. Contact any authorized Toyota retailer or Toyota 
authorized repairer, or any reliable repairer for more information in the follow-
ing situations: 
● Large drops of water have built up on the inside of the lens. 
● Water has built up inside the headlight.
WARNING
■Replacing light bulbs 
● Turn off the lights. Do not attempt to replace the bulb immediately after 
turning off the lights. 
The bulbs become very hot and may cause burns. 
● Do not touch the glass portion of the light bulb with bare hands. When it is 
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.  
Also, if the bulb is scratched or dropped, it may blow out or crack. 
● Fully install light bulbs and any parts used to secure them. Failure to do so 
may result in heat damage, fire, or water entering the headlight unit. This 
may damage the headlights or cause condensation to build up on the lens. 
■ To prevent damage or fire  
● Make sure bulbs are fully seated and locked.  
● Check the wattage of the bulb before installing to prevent heat damage. 
         
        
        
     
        
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405
8When trouble arises
AYGO_OM_Europe_OM99R19E 
8-1. Essential information 
Emergency flashers ........... 406 
If your vehicle has to  
be stopped in an 
emergency ....................... 407 
8-2. Steps to take in  
an emergency 
If your vehicle needs  
to be towed ...................... 409 
If you think  
something is wrong.......... 415 
Fuel pump shut off  
system ............................ 416 
If a warning light turns  
on or a warning buzzer 
sounds ............................. 417 
If you have a flat tire  
(vehicles without  
a spare tire) ..................... 427 
If you have a flat tire  
(vehicles with  
a spare tire) ..................... 442 
If the engine  
will not start...................... 455 
If the shift lever cannot  
be shifted (vehicles 
with a multi-mode
manual transmission) ...... 457 
If the electronic key does  
not operate properly 
(vehicles with a smart 
entry & start system)........ 458 
If the vehicle battery  
is discharged ................... 461 
If your vehicle overheats .... 465 
If the vehicle becomes  
stuck ................................ 468 
         
        
        
     
        
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4158-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99R19E
If you think something is wrong
●Fluid leaks under the vehicle  
(Water dripping from the air conditioning after use is normal.) 
● Flat-looking tires or uneven tire wear 
● High engine coolant temperature warning light comes on 
● “STOP” indicator flashes 
● Changes in exhaust sound 
● Excessive tire squeal when cornering 
● Strange noises related to the suspension system 
● Pinging or other noises related to the engine 
● Engine misses, stumbling or running roughly 
● Appreciable loss of power 
● Vehicle pulls heavily to one side when braking 
● Vehicle pulls heavily to one side when driving on a level road 
● Loss of brake effectiveness, spongy feeling, pedal almost touches 
the floor
If you notice any of the following symptoms, your vehicle proba- 
bly needs adjustment or repair. Contact any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable repairer as 
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms 
         
        
        
     
        
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4178-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99R19E
If a warning light turns on or a warning  
buzzer sounds
Calmly perform the following actions if any of the warning lights 
comes on or flashes. If a light comes on or flashes, but then 
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle 
inspected by any authorized Toyota retailer or Toyota authorized 
repairer, or any reliable repairer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light (warning buzzer)*1
Indicates that: 
• The brake fluid level is low; or
• The brake system is malfunctioning 
 Immediately stop the vehicle in a safe place and con- 
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer. Continuing to 
drive the vehicle may be dangerous.
Charging system warning light 
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con- 
tact any authorized Toyota retailer or Toyota autho- 
rized repairer, or any reliable repairer.
Low engine oil pressure warning light 
Indicates that the engine oil pressure is too low. 
 Immediately stop the vehicle in a safe place and con- 
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
(Flashes or  comes on)
High engine coolant temperature warning light 
Indicates that the engine is overheating.
As the coolant temperature rise, it changes from flashing 
to comes on. 
 P. 465 
         
        
        
     
        
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4188-2. Steps to take in an emergency
AYGO_OM_Europe_OM99R19E
(Flashes)
“STOP” warning light 
Indicates a malfunction in: 
• Engine oil pressure is too low; or 
• Engine is almost overheating.
 Immediately stop the vehicle in a safe place and con- 
tact any authorized Toyota retailer or Toyota autho- 
rized repairer, or any reliable repairer.
(Comes on)
Multi-mode manual transmissi on warning light (vehicles 
with a multi-mode manual transmission) 
Indicates a malfunction in the multi-mode manual trans- 
mission system.
 Have the system checked by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer.
Multi-mode manual transmission warning light (warning
buzzer) (vehicles with a multi-mode manual transmis- 
sion) 
Indicates a malfunction in the multi-mode manual trans-
mission system and that the clutch has become hot due to 
excessive load. 
 Pull over and shift the shift lever to N. Wait for about 
15 minutes for the clutch to cool down. Have the sys- 
tem checked by any authorized Toyota retailer or 
Toyota authorized repairer, or any reliable repairer.
(Flashes)
Heat clutch warning light (warning buzzer) (vehicles 
with a multi-mode manual transmission) 
Indicates that the clutch has become hot, but does not
indicate a malfunction in the multi-mode manual transmis- 
sion system. 
 Pull over and shift the shift lever to N. Wait for about 
15 minutes for the clutch to cool down.
Warning lightWarning light/Details/Actions 
         
        
        
     
        
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4198-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99R19E
Malfunction indicator lamp 
Indicates a malfunction in: 
• The electronic engine control system; 
• The electronic throttle control system;
• The emission control system; or 
• The electronic multi-mode manual transmission control 
system (if equipped).
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
SRS warning light 
Indicates a malfunction in: 
• The SRS airbag system; or 
• The seat belt pretensioner system.
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
ABS warning light
Indicates a malfunction in: 
• The ABS;  or 
• The brake assist system
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
Electric power steering system warning light (warning 
buzzer) 
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions 
         
        
        
     
        
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4208-2. Steps to take in an emergency
AYGO_OM_Europe_OM99R19E
PCS warning light (if equipped) 
When the warning light flashes (and a buzzer sounds): 
Indicates a malfunction in the PCS (Pre-Collision system) 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately. 
When the warning light illuminates:
Indicates that the PCS (Pre-Collision system) is temporar-
ily unavailable, possibly due to either of the following: 
• The part of the windshield around the front sensor being 
dirty, fogged up or covered with condensation, ice, stick-
ers, etc. 
 Clear the dirt, fog, condensation, ice, stickers, etc.  
( P. 217) 
• Front sensor temperature being outside of its opera- 
tional range 
 Wait for a while until the area around the front sensor 
has cooled down sufficiently. 
Either the VSC system or PCS (Pre-Collision system) is 
disabled or both are disabled.
 To enable the PCS, enable both the VSC system and 
PCS. ( P. 222, 248)
(Yellow)
Speed limiter indicator (if equipped) 
Indicates a malfunction in the speed limiter system. 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
(Flashes)
Stop & Start cancel indicator (if equipped) 
Indicates a malfunction in the Stop & Start system 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
Warning lightWarning light/Details/Actions 
         
        
        
     
        
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4218-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99R19E
Slip indicator light 
Indicates a malfunction in: 
• The VSC system;  
• The TRC system; or
• The hill-start assist control system. 
The light will flash when the VSC, the TRC or the hill-start 
assist control system is operating.
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable 
repairer immediately.
(Yellow) 
(Yellow)
LDA indicator and Lane marker indicators (if equipped) 
Indicates a malfunction in the LDA system. 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable
repairer.
(Flashes in yellow  for 15 seconds)
Smart entry & start system indicator light (warning 
buzzer) (if equipped)
Indicates a malfunction in the smart entry & start system 
 Have the vehicle inspected by any authorized Toyota 
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
 Check that all the doors are closed.
Driver’s and front passenger’s seat belt reminder light 
(warning buzzer)*3
Warns the driver and/or front  passenger to fasten their 
seat belts 
 Fasten the seat belt.  
If the front passenger’s seat is occupied, the front
passenger’s seat belt also  needs to be fastened to 
make the warning light (warning buzzer) turn off.
(On the center panel)
Rear passengers’ seat belt reminder lights (warning 
buzzer)*3
Warn the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning lightWarning light/Details/Actions