Page 298 of 644

298 2-4. Using other driving systems
PRIUS_OM_OM47A17U_DVD_(U)
CAUTION
■Before using the LKA system
Do not rely solely on the LKA system. The LKA system does not drive the
vehicle automatically, nor does it reduce the amount of care you need to
take. As such, the driver must always assume full responsibility for under-
standing his/her surroundings, for operating the steering wheel to correct the
driving line, and for driving safely.
Inappropriate or negligent driving could lead to an accident.
■ To avoid operating the LKA by mistake
Switch the LKA off using the “LKA” switch when not in use.
■ Situations unsuitable for LKA
Do not use LKA in any of the following situations.
Otherwise, the system may not function correctly and could result in an acci-
dent.
●When driving with snow tires, tire c hains, a spare tire, or similar equipment
● When the tires have been excessively worn, or when the tire inflation pres-
sure is low.
● When there are objects or structures along the roadside that might be mis-
interpreted as lane markers (such as guardrails, curb, reflector posts, etc.)
● When driving on snowy roads
● When pavement lane markers are difficult to see due to rain, snow, fog,
etc.
● When there are visible lines on the pavement from road repairs, or if the
remains of old lane markers are still visible on the road
● When driving on slippery roads, such as those covered with rain, ice or
snow
● When driving in a lane other than the driving or passing lanes on a freeway
or highway
● When driving on a road with lane closures due to maintenance, or when
driving in a temporary lane
● During emergency towing
Page 447 of 644
447
4-3. Do-it-yourself maintenance
PRIUS_OM_OM47A17U_DVD_(U)
4
Maintenance and care
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new ID codes must be registered in the tire pressure warn-
ing computer and the tire pressure warning system must be initial-
ized. Have tire pressure warning valve and transmitter ID codes
registered by your Toyota dealer. ( P. 449)
■ Tire pressure warning system
Your vehicle is equipped with a tire pressure warning system
that uses tire pressure warning valves and transmitters to detect
low tire inflation pressure before serious problems arise.
( P. 509)
The compact spare tire is not equipped with a tire pressure
warning valve and transmitter.
Page 514 of 644

514 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)
Page 537 of 644
5
When trouble arises
537
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
If you have a flat tire
Your vehicle is equipped with a spare tire. The flat tire can be
replaced with the spare tire.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift position to P.
● Stop the hybrid system.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
*: The shape may differ depending on the grade, etc.
Center deck board*
Wheel nut wrench
Jack handle
Spare tire Towing
eyelet
Jack
Center
auxiliary box
*
Page 542 of 644
542 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Remove all the wheel nuts and
the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
Installing the spare tireRemove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, and the tire may
come off the vehicle.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
ITO52P114
STEP 6
STEP 1
STEP 2
Page 543 of 644
5
When trouble arises
543
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Replacing an aluminum wheel
with a compact spare tire
Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel seat.
Replacing an aluminum wheel with an aluminum wheel
Turn the nut washers until they
come into contact with the disc
wheel.
Tapered portion
Disc wheel
seat
Disc wheel
Washer
Page 544 of 644
544 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Lower the vehicle.
Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Vehicles with wheel ornament,
reinstall the wheel ornament.
*
Align the cutout of the wheel
ornament with the valve stem
as shown.
*: The wheel ornament cannotbe installed on the compact
spare tire.
Stow the flat tire, the tire jack and all tools.
ITO52P119
STEP 3
ITO52P120
STEP 4
STEP 5
STEP 6
Page 545 of 644

5
When trouble arises
545
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
■The compact spare tire
●The compact spare tire is identifi
ed 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 inflation pressure of the compact spare
tire. ( P. 581)
■After completing the tire change
The tire pressure warning system must be reset. (P. 448)
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, low 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.
■If you have a flat front tire on a road covered with snow or ice
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 vehicle.
Fit tire chains to the front tires.
■Jack point guide
STEP 1
STEP 2
STEP 3
The jack point guides are located under
the rocker panel. They indicate the jack
point positions.