2011 LEXUS RX350 ABS

237
2-4. Using other driving systems
2

When driving
All-wheel drive lock switch (AWD models)
nAll-wheel drive lock mode
lAll-wheel drive lock mode is canceled when the brakes are applied to ensure
the ABS and VSC systems operate effectively.
lAll-wheel drive lock mode is canceled when the vehicle speed exceeds 25 mph
(40 km/h).
All-wheel drive lock mode can be used when a large amount of drive power
needs to be applied to all the wheels, such as when the vehicle gets stuck in
mud and you need to free it.
Press the switch.
The torque of the engine is dis-
tributed to the rear wheels to
the maximum extent possible in
accordance with driving condi-
tions.
Pressing the switch again can-
cels all-wheel drive lock mode
and returns the active torque
control 4WD system to normal
mode. (→P. 2 3 1 )

265
2-5. Driving information
2

When driving
lCrosswinds and rough roads will adversely affect handling of your
vehicle and trailer, causing sway. Periodically check the rear to prepare
for being passed by large trucks or buses, which may cause your vehi-
cle and trailer to sway. If swaying occurs, firmly grip the steering wheel,
reduce speed immediately but gradually, and steer straight ahead.
Never increase speed. If you make no extreme correction with the
steering or brakes, your vehicle and trailer will stabilize.
lTake care when passing other vehicles. Passing requires considerable
distance. After passing a vehicle, do not forget the length of your
trailer, and be sure you have plenty of room before changing lanes.
lIn order to maintain engine braking efficiency when driving on a long
steep downgrade, do not use overdrive. Transmission shift range posi-
tion must be in 4 in S mode.
lDue to the added load of the trailer, your vehicle's engine may over-
heat on hot days (at temperatures over 85°F [30°C]) when driving up
a long or steep grade. If the engine coolant temperature gauge indi-
cates overheating, immediately turn off the air conditioning (if in use),
pull your vehicle off the road and stop in a safe spot. (→P. 587)
lAlways place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the parking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do so
only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in place, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into P and turn off the engine.
STEP1
STEP2
STEP3
STEP4
STEP5

473
4-3. Do-it-yourself maintenance
4

Maintenance and care
nBrake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency.
Use only newly opened brake fluid.
CAUTION
nWhen filling the reservoir
Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately.
If you still experience discomfort, see a doctor.
NOTICE
nIf the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.

501
4-3. Do-it-yourself maintenance
4

Maintenance and care
Fuse layout and amperage ratings
nEngine compartment
FuseAmpereCircuit
1RDI FAN NO. 180 AElectric cooling fans
2RR DEF50 ARear window defogger
3AIR SUS50 A
4HTR50 AAir conditioning system
5SPARE30 A
6SPARE40 A
7ABS NO. 230 AAnti-lock brake system
8H-LP CLN30 AHeadlight cleaner
9PBD30 APower back door system
10ST30 AStarter system

502
4-3. Do-it-yourself maintenance
11PD50 A
Daytime running light system, A/F,
H-LP RH HI, H-LP LH LO, H-LP RH
LO, H-LP LH HI, HORN, S-HORN,
multiplex communication system,
multiport fuel injection system/
sequential multiport fuel injection sys-
tem
12ABS NO. 150 AAnti-lock brake system
13EPS60 AElectric power steering system
14ALT140 A
FUEL OPN, DR LOCK, OBD, RR
FOG, S/ROOF, 4WD, INVERTER,
ECU IG1 NO. 1, ECU IG1 NO. 2,
PANEL, GAUGE NO. 1
15AMP130 AAudio system
16EFI MAIN30 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, EFI NO. 1, EFI NO. 2
17AMP230 AAudio system
18IG230 AStarter system, IGN, GAUGE NO. 2,
ECU IG2
19IP JB25 APower door lock system
20STR LOCK20 AStarter system
21RAD NO. 315 A
Meters and gauges lights, instrument
panel lights, navigation system, audio
system, rear seat entertainment sys-
tem
22HAZ15 AEmergency flashers
FuseAmpereCircuit

648
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
2WDTwo Wheel Drive
4WDFour Wheel Drive
A/CAir Conditioning
ABSAnti-lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift control
ALRAutomatic Locking Retractor
AW DAll Wheel Drive
CRSChild Restraint System
DISPDisplay
ECTElectronic Controlled Transmission
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
GAWRGross Axle Weight Ratings
GCWRGross Combination Weight Rating
GVWRGross Vehicle Weight Rating
I/MEmission Inspection and Maintenance
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow

650
Alphabetical index
Alphabetical index
A/C
Air conditioning filter ....................... 493
ABS.............................................................. 231
ACCESSORY mode .......................... 153
Active torque control
AWD mode ........................................... 231
AFS .............................................................. 186
Adaptive front lighting system ......... 186
Air conditioning filter ..........................493
Air conditioning system ..................... 274
Automatic air conditioning
system..................................................... 274
Airbags
Airbag operating conditions ........... 113
Airbag precautions for your
child .......................................................... 117
Airbag warning light ........................ 536
Curtain shield airbag operating
conditions .............................................. 113
Curtain shield airbag
precautions ........................................... 117
Front passenger occupant
classification system ........................122
General airbag precautions ............ 117
Locations of airbags ..........................109
Modification and disposal of
airbags..................................................... 121
Proper driving posture.............107, 117
Side airbag operating
conditions .............................................. 113
Side airbag precautions..................... 117
SRS airbags ............................................109
A

667
What to do if...
nWarning lights
oror
P. 5 3 5P. 5 3 6
P. 5 3 7
or
P. 5 3 6P. 5 3 7
P. 5 3 7P. 5 3 7
P. 5 3 6P. 5 3 6
P. 5 3 7P. 5 3 6
P. 5 3 5P. 5 3 7
P. 5 3 6
Brake system warning lightMalfunction indicator lamp
ABS warning light
Driver’s seat belt reminder
light
Front passenger’s seat belt reminder light
Low fuel level warning lightMaster warning light
SRS warning lightElectric power steering system warning light

Open door warning light
Pre-collision systemwarning light
Charging system warning lightTire pressure warning light
Slip indicator