PRIUS_OM_OM47A29U_(U)
6117-3. Do-it-yourself maintenance
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Maintenance and care
■Situations in which the tire pressure warning system may not oper-
ate properly
●In the following cases, the tire pressure warning system may not operate
properly.
• If non-genuine Toyota wheels are used.
• When a replacement tire is used , the system may not operate cor-
rectly due to the structure of the replacement tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run- flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If wheel without the tire pressure warning valve and transmitter is
used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, largedisplay, airport or other facility that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
●When the vehicle is parked, the time taken for the warning to start or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
■The initialization operation
●Make sure to carry out in itialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold be fore carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the power switch off during initialization,
it is not necessary to press the reset switch again as initialization will
restart automatically when the power switch has been turned to ON
mode for the next time.
●If you accidentally press the reset s witch when initialization is not neces-
sary, adjust the tire inflation pressu re to the specified level when the
tires are cold, and conduct initialization again.
6848-2. Steps to take in an emergency
PRIUS_OM_OM47A29U_(U)
■The compact spare tire (if equipped)
●The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflatio n pressure of the compact spare tire.
( P. 734)
■When using the compact spare tire (if equipped)
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, lo w inflation pressure of the spare tire will not be
indicated by the tire pressure warning system. Also, if you replace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
■When the compact spare tire is equipped (if equipped)
The vehicle height may become lo wer when driving with the compact
spare tire compared to when driving with standard tires.
■If you have a flat front tire on a road covered with snow or ice (vehi-
cles with compact spare tire)
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
■Jack point
■Storing the jack The mark indicating the jack point is
stamped on the underside of the vehi-
cle.
Place the jack in the same direction as
the mark next to the storage space.
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797Alphabetical index
PRIUS_OM_OM47A29U_(U)
Tires .......................................... 605Chains................................... 415
Checking ............................... 605
Glossary................................ 746
If you have a flat tire ..... 673, 687
Inflation pressure .................. 615
Replacing .............................. 673
Rotating tires......................... 606
Size ....................................... 734
Snow tires ............................. 414
Spare tire ...................... 673, 734
Tire identification number ..... 742
Tire pressure warning system ......... ....................... 607
Uniform Tire Quality Grading............................... 744
Warning light ......................... 658
Tools ................................. 674, 689
Top tether strap ......................... 74
Total load capacity .................. 726
Towing Dinghy towing ....................... 224
Emergency towing ................ 648
Towing eyelet........................ 651
Trailer towing ........................ 223
Toyota Safety Sense P ............ 267
Traction control ....................... 404
Trailer towing ........................... 223
Transmission Driving mode select switch ... 320
Hybrid transmission .............. 234
P position switch ................... 235 TRAC (Traction Control)
Function ................................ 404
VSC OFF switch ................... 406
Trip meters ............................... 109
Troubleshooting ...................... 778
Turn signal lights Replacing light bulbs .... 638, 639
Turn signal lever ................... 240
Wattage ................................ 736
USB memory ............................ 451
USB port ................................... 425
Vanity lights Vanity lights .......................... 542
Wattage ................................ 736
Vanity mirrors .......................... 542 Vanity lights .......................... 542
Vehicle data recordings ............ 10
Vehicle identification number ................................... 727
Vehicle proximity notification system ................. 79
Vehicle Stability Control (VSC) ...................................... 404
Voice command system ......... 505 Microphone ........................... 471
Switches ............................... 505
VSC (Vehicle Stabilit y Control) .... 404
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