Page 628 of 776

6287-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitters, contact any authorized Lexus de aler or repairer, or another duly quali- fied and equipped professional as the tire pressure warning valves and transmitters may be damaged if not handled correctly.
●Make sure to install the tire valve caps. If the tire valve caps are not installed, water could enter the tire pressure warning valv es and the tire pressure warning valves could be bound.
●When replacing tire valve caps, do not use tire valve caps other than those specified. The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans- mitter may not operate properly. If a liquid sealant is used, contact any authorizedLexus dealer or repairer, or another duly qu alified and equipped professional or other
qualified service shop as soon as possible. After use of liquid sealant, make sure to replace the tire pressure warning valve and transmitter when repairing or replacing the tire. ( P. 615)
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes. These conditions may cause losses in tire inflation pressure, reducing the cushioning
ability of the tires. In addition, driving on rough roads may cause damage to the tires themselves, as well as the vehicle’s wheels and body.
■If tire inflation pressure of ea ch tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
Page 630 of 776
6307-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
WARNING
■Proper inflation is critical to save tire performance
Keep your tires properly inflated. If the tires are not properly inflated, the following conditions may occur which could
lead to an accident resulting in death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resulting from overheated tires
●Air leaking from between tire and wheel
●Wheel deformation and/or tire damage
●Greater possibility of tire damage while driving (due to road hazards, expansion joints, sharp edges in the road, etc.)
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on. If a valve cap is not installed, dirt or moisture may get into the valve and cause an airleak, resulting in decrease d tire inflation pressure.
Page 633 of 776
6337-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
Turn the engine switch off.
Open the glove box. Slide off the
damper.
Push in the glove box on the vehicle’s
outer side to disconnect the claws.
Then pull out the glove box and dis-
connect the lower claws.
Remove the cover.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method
1
2
3
4
Page 634 of 776

6347-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
Remove the filter cover.
Unlock the filter cover.
Move the filter cover in the direc-
tion of the arrow, and then pull it
out of the claws.
Remove the filter case.
There may be foreign objects on top of the air conditioning filter.
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “ UP” marks shown on the filter and the filter case should be pointing up.
■Checking interval
Inspect and replace the air conditioning filt er according to the maintenance schedule. In dusty areas or areas with heavy traffic fl ow, early replacement may be required. (For
scheduled maintenance information, please refer to the “Lexus Service Booklet” or “Lexus Warranty Booklet”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out cont inuously, replace the air conditioning filter.
5
1
2
6
7
Page 635 of 776
6357-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed. Using the air conditioning system without a filter may cause damage to the system.
■To prevent damage to the filter cover
When moving the filter cover in the direction of
arrow to release the fitting, pay attention not to apply excessive force to the claws. Otherwise,the claws may be damaged.
Page 658 of 776

658
RX350/RX200t_EE_OM48F32E
8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional or commercial towing service before towing.
●The engine is running but the vehicle does not move.
●The vehicle makes an abnormal sound.
Do not tow with a sling-type truck to
prevent body damage.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by any
authorized Lexus dealer or repairer , or another duly qualified and equipped
professional or commercial towing se rvice, using a wheel-lift type truck or
flatbed truck.
Use a safety chain system for all towing , and abide by all state/provincial and
local laws.
2WD models: If towing your vehicle with a wheel-lift type truck from the front,
the vehicle’s rear wheels and axles must be in good conditions. (P. 659, 662)
If they are damaged, use a towing dolly or flatbed truck.
AWD models: If towing your vehicle with a wheel-lift type truck, use a towing
dolly. ( P. 659, 662)
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck
Page 664 of 776

6648-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher than nor-
mal
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy fe eling, pedal almost touches the floor
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact any authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms
Page 668 of 776

6688-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
Slip indicator When the warning light is illuminated:
Indicates a malfunction in: •The VSC system;•The TRC system;
• The Trailer Sway Control; or • The hill-start assist control system Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional immediately.When the warning light flashes:
Indicates that the VSC, TRC or Trailer Sway Control system is operating
(If equipped)
PCS warning lightWhen the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Crash Safety system) Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional
immediately.
When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Crash Safety system) is temporarily unavailable, possibly due to either of the following:• An area around the radar sensor or camera sensor being dirty
or covered with condensation, ice, stickers, etc. Clear the dirt, condensation, ice, stickers, etc.
( P. 294, 295) • Radar sensor or camera sensor operational conditions (such astemperature etc.) being not met
Driving is possible in this case. The PCS (Pre-Crash Safety sys- tem) will be enabled if the oper ational conditions (such as tem- perature etc.) are met again.
When the warning light is illuminated: Either the VSC (Vehicle Stability Control) system or PCS (Pre-
Crash Safety system) is disa bled or both are disabled. To enable the PCS, enable both the VSC system and PCS. ( P. 304, 425)
(Flashes) (If equipped)
ICS OFF indicator
When a buzzer sounds: Indicates a malfunction in the Intelligent Clearance Sonar system Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional immediately.When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a sensor being dirty or covered with ice, etc. Clear the dirt, etc.
Warning lightWarning light/Details/Actions