service indicator TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

761-3. Emergency assistance
PRIUS PRIME_OM_OM47D71U_(U)
Safety Connect
Microphone
LED light indicators
“SOS” button
: If equipped
Safety Connect is a subscription-based telematics service that
uses Global Positioning System (GPS) data and embedded cel-
lular technology to provide safety and security features to sub-
scribers. Safety Connect is supported by Toyota’s designated
response center, which operates 24 hours per day, 7 days per
week.
Safety Connect service is available by subscription on select,
telematics hardware-equipped vehicles.
By using the Safety Connect service, you are agreeing to be
bound by the Telematics Subscription Service Agreement and
its Terms and Conditions, as in effect and amended from time to
time, a current copy of which is available at Toyota.com in the
United States, Toyotapr.com in Puerto Rico and Toyota.ca in
Canada. All use of the Safety Connect service is subject to such
then-applicable Terms and Conditions.
System components
Type A
Type B
1
2
3

781-3. Emergency assistance
PRIUS PRIME_OM_OM47D71U_(U)
■Safety Connect Services Information
●Phone calls using the vehicle’s Bluetooth® technology will not be possible
when Safety Connect is active and in use.
●Safety Connect is available beginning Fall 2009 on select Toyota models (in
the contiguous United States only). Contact with the Safety Connect
response center is dependent upon the telematics device being in operative
condition, cellular connection availability, and GPS satellite signal reception,
which can limit the ability to reach the response center or receive emer-
gency service support. Enrollment and Telematics Subscription Service
Agreement required. A variety of subscription terms is available; charges
vary by subscription term selected and location.
●Automatic Collision Notification, Emergency Assistance and Stolen Vehicle
Location are available in the United States, including Hawaii and Alaska,
Puerto Rico and Canada, and Enhanced Roadside Assistance are available
in the United States, Puerto Rico and Canada.
●Automatic Collision Notification, Emergency Assistance, Stolen Vehicle and
Enhanced Road Assistance are not available in the U.S. Virgin Islands.
For vehicles first sold in the U.S. Virgin Islands, no Safety Connect services
will function in or outside the U.S. Virgin Islands.
●Safety Connect services are not subject to section 255 of the Telecommuni-
cations Act and the device is not TTY compatible.
■Languages
The Safety Connect response center will offer support in multiple languages.
The Safety Connect system will offer voice prompts in English, Spanish, and
French. Please indicate your language of choice when enrolling.
■When contacting the response center
You may be unable to contact the response center if the network is busy.
When the power switch is turned to ON mode, the red indicator light
comes on for 2 seconds then turns off. Afterward, the green indicator
light comes on, indicating that the service is active.
The following indicator light patterns indicate specific system usage
conditions:
●Green indicator light on = Active service
●Green indicator light flashing = Safety Connect call in process
●Red indicator light (except at vehicle start-up) = System malfunction
(contact your Toyota dealer)
●No indicator light (off) = Safety Connect service not active
Safety Connect LED light Indicators

100
PRIUS PRIME_OM_OM47D71U_(U)
2-1. Plug-in hybrid system
■If a warning light comes on, a warning message is displayed or the 12-
volt battery is disconnected
The hybrid system may not start. In that case, try to start the system again. If
the “READY” indicator does not come on, contact your Toyota dealer.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started,
refuel the vehicle with at least enough gasoline to make the low fuel level
warning light (P. 676) go off. If there is only a small amount of fuel, the
hybrid system may not be able to start. (The standard amount of fuel is about
2.0 gal. [7.5 L, 1.7 Imp.gal.], when the vehicle is on a level surface. This value
may vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)
■Electromagnetic waves
●High voltage parts and cables on the hybrid vehicles incorporate electro-
magnetic shielding, and therefore emit approximately the same amount of
electromagnetic waves as conventional gasoline powered vehicles or home
electronic appliances.
●Your vehicle may cause sound interference in some third party-produced
radio parts.
■Effect of magnetic forces
If objects that generate strong magnetic forces, such as large speakers, are
placed inside the luggage compartment or installed nearby, the generated
magnetic forces may negatively affect the hybrid system.
■Hybrid battery (traction battery) (lithium-ion battery)
The hybrid battery (traction battery) has a limited service life.
The hybrid battery (traction battery) capacity (the ability to hold a charge)
reduces with time and use in the same way as other rechargeable batteries.
The extent at which capacity reduces changes drastically depending on the
environment (ambient temperature, etc.) and usage conditions, such as how
the vehicle is driven and how the hybrid battery (traction battery) is charged.
This is a natural characteristic of lithium-ion batteries, and is not a malfunc-
tion. Also, even though the distance that can be driven in EV mode decreases
when the hybrid battery (traction battery) capacity reduces, vehicle perfor-
mance does not significantly become worse.
In order to reduce the possibility of the capacity reducing, follow the directions
listed on P. 143, “Capacity reduction of the hybrid battery (traction battery)”.
■Starting the hybrid system in an extremely cold environment
When the hybrid battery (traction battery) is extremely cold (below approxi-
mately -22F [-30C]) under the influence of the outside temperature, it may
not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to the
outside temperature increase etc.

593
PRIUS PRIME_OM_OM47D71U_(U)
7-2. Maintenance
7
Maintenance and care
Emission inspection and maintenance (I/M)
programs
The OBD system determines that a problem exists somewhere in the
emission control system. Your vehicle may not pass the I/M test and
may need to be repaired. Contact your Toyota dealer to service the
vehicle.
●When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
●When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle may not pass the I/M test.
The error code in the OBD system will not be cleared unless the vehi-
cle is driven 40 or more times.
Contact your Toyota dealer to prepare the vehicle for re-testing.
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system
monitors the operation of the emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M test in the following situations:
When the malfunction indicator lamp still remains on after sev-
eral driving trips
If your vehicle does not pass the I/M test

740
PRIUS PRIME_OM_OM47D71U_(U)
9-1. Specifications
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as
reformulated gasolines, are available in some cities. These fuels are typically
acceptable for use, providing they meet other fuel requirements.
Toyota recommends these fuels, since the formulations allow for reduced
vehicle emissions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
●Toyota does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If this
happens, contact your Toyota dealer for service.
■If your engine knocks
●Consult your Toyota dealer.
●You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern. ●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30, E50, E85 (which are only some
examples of fuel containing more than
15% ethanol).
DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

800Alphabetical index
PRIUS PRIME_OM_OM47D71U_(U)
Seat belt instructions for
Canadian owners ............... 769
Seat belt pretensioners ........... 31
SRS warning light ................. 675
Seat heaters ............................. 539
Seating capacity ...................... 335
Seats ................................. 301, 303
Adjustment ............................ 301
Adjustment precautions ........ 302
Armrest ................................. 566
Child seats/child restraint
system installation ................ 60
Cleaning................................ 581
Front seats ............................ 301
Head restraint ....................... 305
Properly sitting in the seat ...... 28
Rear seats ............................ 303
Seat back pocket .................. 548
Seat heaters ......................... 539
Sensor
Automatic headlight
system ................................ 356
Automatic High Beam ........... 358
BSM (Blind Spot Monitor) ..... 436
Door handle .......................... 281
Front camera ........................ 377
Humidity sensor ............ 523, 534
Inside rear view mirror .......... 311
Intuitive parking assist .......... 445
LTA (Lane Tracing Assist) .... 395
Parking Support Brake
function ............................... 456
Radar sensor ........................ 377
Rain-sensing windshield
wipers ................................. 369
RCTA (Rear Cross Traffic
Alert function) ..................... 436
S-APGS (Simple Advanced
Parking Guidance
System) .............................. 496
Service plug ............................... 98
Service reminder indicators ... 201
Shift lever ................................. 345
Shift lever light......................... 541Side airbags ............................... 36
Side doors ................................ 281
Side marker lights ................... 353
Light switch ........................... 353
Replacing light bulbs ............ 660
Side mirrors ............................. 312
Adjustment............................ 312
BSM (Blind Spot Monitor) ..... 432
Folding .................................. 312
Outside rear view mirror
defoggers ................... 516, 527
Side windows........................... 314
Water-repellent coating ........ 577
Simple Advanced Parking
Guidance System
(S-APGS) ................................ 467
Smart key system .................... 292
Antenna location ................... 292
Entry functions ...................... 281
Starting the hybrid system .... 338
Smart lid & connector
locking system ...................... 121
Snow tires ................................ 507
“SOS” button ............................. 76
Spark plug ................................ 735
Specifications .......................... 730
Speedometer............................ 209
SRS airbags ............................... 36
Steering wheel ......................... 308
Adjustment............................ 308
Audio switches
*
Heated steering wheel .......... 539
Meter control switches .......... 193
Talk switch
*
Telephone switches*
TRIP switch .......................... 213
Stop lights
Replacing light bulbs ............ 660
Storage feature ........................ 544
Storage precautions................ 544
Stuck
If the vehicle becomes
stuck ................................... 726
Sun visors ................................ 553