Lexus RX 450h Owner's Manual page 545

The compact spare tire (vehicles with a
■
compact spare tire)
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 emer-
gency.
Make sure to check the tire inflation pres-
●
sure of the compact spare tire. (P.569,
570)
When using the compact spare tire
■
(vehicles with a compact spare tire and
the tire pressure warning system)
As the compact spare tire is not equipped
with a tire pressure warning valve and trans-
mitter, 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.
When the compact spare tire is
■
equipped (vehicles with a compact
spare tire)
When driving with the compact spare tire
installed, the vehicle height will be different
than when driving with standard tires.
If you have a flat front tire on a road cov-
■
ered with snow or ice (vehicles with a
compact spare tire)
Install the compact spare tire on one of the
rear wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front
tires:
1 Replace a rear tire with the compact
spare tire.
2 Replace the flat front tire with the tire
removed from the rear of the vehicle.
3 Fit tire chains to the front tires.
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7-2. Steps to take in an emergency
WARNING
When using the compact spare tire
■
(vehicles with a compact spare tire)
Remember that the compact spare tire
●
provided is specifically designed for
use with your vehicle. Do not use your
compact spare tire on another vehicle.
Do not use more than one compact
●
spare tire simultaneously.
Replace the compact spare tire with a
●
standard tire as soon as possible.
Avoid sudden acceleration, abrupt
●
steering, sudden braking and shifting
operations that cause sudden engine
braking.
When the compact spare tire is
■
attached (vehicles with a compact
spare tire)
The vehicle speed may not be correctly
detected, and the following systems may
not operate correctly:
• ABS & Brake assist
• VSC
• TRC
• EPS
• VDIM
• AVS (if equipped)
• Cruise control (if equipped)
• Dynamic radar cruise control (if
equipped)
• Dynamic radar cruise control with
full-speed range (if equipped)
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with
steering control) (if equipped)
• LTA (Lane Tracing Assist) (if equipped)
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