snow chains LEXUS RX270 2014 Owners Manual

275
2-4. Using other driving systems
2
When driving
RX350/270_EE
■Operating conditions of emergency brake signal
When the following two conditions are met, the emergency brake signal will oper-
ate:
●Actual vehicle speed is over 55 km/h (34 mph).
●The brake pedal is depressed in a manner that cause the system to judge from
the vehicle deceleration that this is a sudden braking operation.
■Automatic system cancellation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
●The emergency flashers are turned on.
●The brake pedal is released.
●The system judges from the vehicle deceleration that this is not a sudden brak-
ing operation.
CAUTION
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on a wet or slick road.
■Stopping distance when the ABS is operating may exceed that of normal condi-
tions
The ABS is not designed to shorten the vehicle's stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situa-
tions:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or roads with uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
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296
2-5. Driving information
RX350/270_EE
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■Before driving the vehicle
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
●To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
●Check for and remove any excess ice or snow that may have
accumulated on the exterior lights, vehicle's roof, chassis, around
the tires or on the brakes.
●Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
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298
2-5. Driving information
RX350/270_EE
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the front tires only. Do not install tire chains on the rear tires.
●Install tire chains on front tires as tightly as possible. Retighten chains after driv-
ing 0.5  1.0 km (1 /4  1 /2 mile).
●Install tire chains following the instructions provided with the tire chains.
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for
the snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 50 km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
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299
2-5. Driving information
2
When driving
RX350/270_EE
NOTICE
■Repairing or replacing snow tires (vehicles with tire pressure warning system)
Request repairs or replacement of snow tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters.
■Fitting tire chains (vehicles with tire pressure warning system)
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.
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5
581
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EEFirmly tighten each wheel nut two
or three times in the order shown
in the illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
Stow the flat tire, tire jack and all tools.
STEP4
■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 inflation pressure of the compact spare tire.
(→P. 6 1 7 )
■When using the compact spare tire (if equipped)
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 (vehicles with a
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.
■After completing the tire change (vehicles with tire pressure warning system)
The tire pressure warning system must be reset. (→P. 4 8 5 )
STEP5
STEP1
STEP2
STEP3
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647
Alphabetical index
RX350/270_EE
Tachometer
Tachometer ........................................... 196
Tail lights
Replacing light bulbs......................... 516
Switch ........................................................ 217
Wattage................................................... 619
Talk switch* ............................................. 392
Telephone switch*................................ 392
Telephone* ............................................... 391
Theft deterrent system
Alarm ......................................................... 122
Double locking system .......................121
Immobilizer system.............................. 115
Tire inflation pressure ......................... 495
Tires
Chains ..................................................... 296
Checking ...............................................483
If you have a flat tire .......................... 572
Inflation pressure................................495
Inflation pressure sensor ................484
Replacing ............................................... 572
Rotating tires ........................................483
Size.............................................................. 617
Snow tires .............................................. 296
Spare tire................................................ 572
Tire pressure warning
system ..................................... 483, 546
Tools ........................................................... 572
Towing
Emergency towing............................536
Trailer towing ..............................300, 311
Traction control .......................................271Trailer towing ................................ 300, 311
TRC .............................................................. 271
Trip information display ..................... 206
Trip meter ..................................................196
Turn signal lights
Replacing light bulbs .........................516
Switch ........................................................ 193
Wattage ................................................... 619
Under tray ............................................... 429
USB port .......................................344, 353
Vanity lights
Vanity lights............................................ 431
Wattage ................................................... 619
Vanity mirrors ..........................................431
VDIM..........................................................272
Vehicle dynamics integrated
management ........................................272
Vehicle identification number......... 607
Vehicle stability control ....................... 271
VSC ............................................................. 271
Warning buzzers
Brake system ....................................... 543
Key reminder....................................... 563
Open door .......................................... 546
Open moon roof reminder.......... 557
Pre-crash braking ............................. 280
Seat belt reminder ............................ 546T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
U
V
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