2018 TOYOTA PRIUS service

7238-2. Steps to take in an emergency
PRIUS_OM_OM47B89U_(U)
8
When trouble arises
NOTICE
■To avoid damage to the tire pressure warning valves and transmit-
ters
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Toyota dealer or other qualified service shop as soon
as possible. After use of liquid sealant, make sure to replace the tire
pressure warning valve and transmitter when repairing or replacing the
tire. ( →P. 620)

756
PRIUS_OM_OM47B89U_(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)

762
PRIUS_OM_OM47B89U_(U)
9-1. Specifications
This information has been prepared in accordance with regulations
issued by the National Highway Traffic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota
vehicles with information on uniform tire quality grading.
Your Toyota dealer will help answe r any questions you may have as
you read this information.
■DOT quality grades
All passenger vehicle tires must c onform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found
where applicable on the tire sidewall between tread shoulder and
maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a speci-
fied government test course.
For example, a tire graded 150 wo uld wear one and a half (1 - 1/2)
times as well on the government course as a tire graded 100.
The relative performance of tire s depends upon the actual condi-
tions of their use. Performance may differ significantly from the norm
due to variations in driving habits, service practices and differences
in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ability to stop on wet pavement as
measured under controlled conditio ns on specified government test
surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
Uniform Tire Quality Grading

813Alphabetical index
PRIUS_OM_OM47B89U_(U)
S-APGS (Simple Advanced Parking Guidance
System) .................................. 363
Safety Connect ........................ 574
Seat belts.................................... 30 Adjusting the seat belt ............ 31
Automatic Locking Retractor............................... 31
Child restra int system
installation ............................ 61
Cleaning and maintaining
the seat belt ........................ 589
Emergency Locking Retractor............................... 31
How to wear your seat belt ..... 30
How your child should wear the seat belt .......................... 31
Pregnant women, proper seat belt use ......................... 33
Reminder light and buzzer .... 675
Seat belt extender................... 32
Seat belt instructions for Canadian owners ............... 783
Seat belt pretensioners ........... 31
SRS warning light ................. 674
Seat heaters ............................. 536
Seating capacity ...................... 228 Seats
Adjustment............................ 190
Adjustment precautions ........ 191
Child seats/child restraint system installation ................ 61
Cleaning ............................... 588
Front seats............................ 190
Head restraint ....................... 195
Properly sitting in the seat ...... 28
Seat heaters ......................... 536
Sensor
Automatic headlight system .......... ...................... 251
Automatic High Beam
system .......... ...................... 253
Camera sensor ..................... 275
Inside rear view mirror .......... 201
LDA (Lane Departure Alert with steering control) .......... 293
Parking assist
sensors............... 339, 352, 393
Radar sensor ........................ 275
Rain-sensing windshield wipers ................................. 264
Service reminder indicators ............................... 100
Shift lever ................................. 240
Shift lever light ........................ 538
Side airbags ............................... 36
Side doors ................................ 171
Side marker lights
Light switch ........................... 248
Replacing light bulbs ............ 660
S