2012 LEXUS RX350 fuel cap

Evaporative Control System
• Charcoal canister
• Diaphragm valve
• F uel filler cap
• Fuel tank
• V apor liquid separator
Exhaust Gas Recirculation
(EGR) System
• E GR gas temperature sensor
• EGR valve
• Associated parts
Ignition System
• D istributor and internal parts
• I gnition coil and ignitor
• Ignition wires
• Spark plugs*
Positive Crankcase Ventilation
(PCV) System
• O il filler cap
• P CV valve or orifice Other Parts Used in Systems
Listed
• D ata link connector (8/80)
• H oses, clamps, fittings, tubing
and mounting hardware
• M alfunction indicator light and
bulb (8/80)
• P ulleys, belts and idlers
• S ealing gaskets and devices
• S ensors, solenoids, switches
and valves
Your Warranties in Detail24 f eder AL eMI ss I o N c o N tro L W A rr AN t Y
WARRANTY8/80 = Covered for eight years or 80,000 miles, whichever occurs first.
*Warranted until first required maintenance under terms of the California Emission Control Warranty.

Scheduled Maintenance l og
MAINTENANCE
Scheduled Maintenance Log 5136 Months or 30,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter
❏ Reset maintenance reminder light
❏ Rotate tires
❏ Re-torque nuts and bolts of drive shaft (AWD)
❏ Replace cabin air filter
❏ Replace brake fluid
❏ Replace engine air filter
❏ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Engine coolant (see page 70)
__ Exhaust pipes and mountings
__ Fuel lines and connections, fuel tank band
and fuel t ank vapor vent system hoses
I f you drive primarily under any of these special operating conditions, perform

these additional items:
D riving off-road, on dirt roads or on dusty roads:
❏ Tighten nuts and bolts on chassis
Towing a trailer, using a car-top carrier or heavy vehicle loading:
❏ Replace rear differential oil (AWD)
❏ Replace transfer case oil (AWD)
❏ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil (AWD)
__ Steering linkage and boots
__ Transfer case oil (AWD)
__ Transmission for signs of leakage
__ Wiper blades❏ Replace Smart Key battery
❏ Visually inspect brake pads, calipers
and rotors
❏ Check installation of driver’s floor mat
❏ Inspect wiper blades
❏ Road-test vehicle
d ate: __________________________ Mileage: __________________________

Scheduled Maintenance l og
MAINTENANCE
Scheduled Maintenance Log 5572 Months or 60,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter
❏ Re-torque nuts and bolts of drive shaft (AWD)
❏ Replace cabin air filter
❏ Replace brake fluid
❏ Replace engine air filter
❏ Replace Smart Key battery
❏ Reset maintenance reminder light
❏ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belts
__ Engine coolant (see page 70)
__ Exhaust pipes and mountings
__ F uel lines and connections, fuel tank band

and fuel tank vapor vent system hoses
I f you drive primarily under any of these special operating conditions, perform
these additional items:
D riving off-road, on dirt roads or on dusty roads:
❏ Tighten nuts and bolts on chassis
Towing a trailer, using a car-top carrier or heavy vehicle loading:
❏ Replace rear differential oil (AWD)
❏ Replace transfer case oil (AWD)
❏ Replace transmission fluid
❏ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil (AWD)
__ Steering linkage and boots
__ Transfer case oil (AWD)
__ Transmission for signs of leakage
__ Wiper blades❏ Rotate tires
❏ Visually inspect brake pads, calipers
and rotors
❏ Check installation of driver’s floor mat
❏ Road-test vehicle
d ate: __________________________ Mileage: __________________________

Scheduled Maintenance l og
MAINTENANCE
Scheduled Maintenance Log 59108 Months or 90,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter
❏ Re-torque nuts and bolts of drive shaft (AWD)
❏ Replace cabin air filter
❏ Replace brake fluid
❏ Replace engine air filter
❏ Replace Smart Key battery
❏ Reset maintenance reminder light
❏ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belt
__ Engine coolant (see page 70)
__ Exhaust pipes and mountings
__ F uel lines and connections, fuel tank band

and fuel tank vapor vent system hoses
I
f you drive primarily under any of these special operating conditions, perform
these additional items:
D riving off-road, on dirt roads or on dusty roads:
❏ Tighten nuts and bolts on chassis
Towing a trailer, using a car-top carrier or heavy vehicle loading:
❏ Replace rear differential oil (AWD)
❏ Replace transfer case oil (AWD)
❏ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil (AWD)
__ Steering linkage and boots
__ Transfer case oil (AWD)
__ Transmission for signs of leakage
__ Wiper blades❏ Rotate tires
❏ Visually inspect brake pads, calipers
and r otors
❏ Check installation of driver’s floor mat
❏ Road-test vehicle
d ate: __________________________ Mileage: __________________________

Scheduled Maintenance l og
MAINTENANCE
Scheduled Maintenance Log 63144 Months or 120,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter
❏ Re-torque nuts and bolts of drive shaft (AWD)
❏ Replace cabin air filter
❏ Replace brake fluid
❏ Replace engine air filter
❏ Replace Smart Key battery
❏ Replace spark plugs (use Denso FK20HR11 plugs
or equivalent) 1

❏ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belt
__ Exhaust pipes and mountings
__ F uel lines and connections, fuel tank band

and fuel tank vapor vent system hoses
I
f you drive primarily under any of these special operating conditions, perform
these additional items:
D riving off-road, on dirt roads or on dusty roads:
❏ Tighten nuts and bolts on chassis
Towing a trailer, using a car-top carrier or heavy vehicle loading:
❏ Replace rear differential oil (AWD)
❏ Replace transfer case oil (AWD)
❏ Replace transmission fluid
❏ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil (AWD)
__ Steering linkage and boots
__ Transfer case oil (AWD)
__ Transmission for signs of leakage
__ Wiper blades❏ Reset maintenance reminder light
❏ Rotate tires
❏ Visually inspect brake pads, calipers
and rotors
❏ Check installation of driver’s floor mat
❏ Road-test vehicle
1
Required under the terms of the Emission Control Warranty.d ate: __________________________ Mileage: __________________________

Scheduled Maintenance l og
MAINTENANCE
Scheduled Maintenance Log 67180 Months or 150,000 Miles❏ Replace engine oil with 0W-20 oil; replace oil filter
❏ Re-torque nuts and bolts of drive shaft (AWD)
❏ Replace cabin air filter
❏ Replace brake fluid
❏ Replace engine air filter
❏ Replace engine coolant (see page 70)
❏ Replace Smart Key battery
❏ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belt
__ Exhaust pipes and mountings
__ F uel lines and connections, fuel tank band

and fuel tank vapor vent system hoses
I
f you drive primarily under any of these special operating conditions, perform
these additional items:
D riving off-road, on dirt roads or on dusty roads:
❏ Tighten nuts and bolts on chassis
Towing a trailer, using a car-top carrier or heavy vehicle loading:
❏ Replace rear differential oil (AWD)
❏ Replace transfer case oil (AWD)
❏ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil (AWD)
__ Steering linkage and boots
__ Transfer case oil (AWD)
__ Transmission for signs of leakage
__ Wiper blades❏ Reset maintenance reminder light
❏ Rotate tires
❏ Visually inspect brake pads, calipers
and r otors
❏ Check installation of driver’s floor mat
❏ Road-test vehicle
d ate: __________________________ Mileage: __________________________

e xplanation of Maintenance i te MS
MAINTENANCE Scheduled Maintenance Log70 Engine Coolant
When inspecting, visually check
the level of the engine coolant on the
see-through reservoir. Add coolant
as necessary. When replacing, drain
the cooling system and refill with
coolant. Always use Genuine Toyota
Super Long-Life Coolant or similar
high-quality non-silicate, non-amine,
non-nitrate, non-borate ethylene-
glycol coolant with long-life hybrid
organic acid technology (i.e., a
combination of low phosphates and
organic acids). A qualified technician
should perform these operations.
Check the radiator and condenser
for blockage by leaves, dirt or insects
and clean if necessary. Also check
the hose connections for corrosion
and condition of installation.
n ote: Initial replacement of engine
coolant is at 120 months/100,000
miles. Replace every 60 months/
50,000 miles thereafter. Engine Oil and Oil Filter
Replace the oil filter and drain and
refill the engine oil at specified
intervals. SAE 0W-20 oil is the best
choice for good fuel economy and
good starting in cold weather. If SAE
0W-20 is not available, SAE 5W-20
may be used; however, it must be
replaced with SAE 0W-20 at the
next oil change. See your Lexus
dealer for oil specifically formulated
for your vehicle’s engine.
Your vehicle is equipped with a
replaceable oil-filter element and oil-
filter cap O-ring; replace both at each
oil change. For instructions on how to
reset the reminder light, refer to your
Owner’s Manual.
n ote: If you do the majority of your
driving under any of the special
operating conditions indicated on
page 44, you should replace the
engine oil and oil filter every six
months or 5,000 miles, regardless
of the oil used or the certification
of the vehicle.

e xplanation of Maintenance i te MS
MAINTENANCE
Scheduled Maintenance Log 71Exhaust Pipes and Mountings
Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration and damage. Start
the engine and listen carefully for
any exhaust leakage. Tighten connec -
tions and replace parts as necessary.
Fuel Lines and Connections, Fuel
Tank Band and Fuel Tank Vapor
Vent System Hoses
Visually inspect for corrosion,
damage, cracks, and loose or leaking
connections. Tighten connections
and replace parts as necessary.
Fuel Tank Cap Gasket
Visually inspect for cracks, deterio -
ra tion and damage and replace
if necessary.
Nuts and Bolts on Chassis
Check that tightness of the seat-
mounting bolts and front/rear
suspension-member retaining bolts
matches torque measurements
specified in the Repair Manual .
Rack-and-Pinion Assembly
Inspect the rack-and-pinion assembly
for signs of leakage, damage and
loose electrical connections. Tighten
connections and if you discover any
leakage or damage, have it repaired
immediately by a qualified technician. Road Test
While driving the vehicle, check for
proper operation of engine, transmis -
sion, brakes and steering. Also check
the parking brake, and check for
abnormal noise or vibration from
any part of the vehicle.
Spark Plugs
Replace at specified interval. Install
new plugs of the same type as origi -
nally equipped (see your Owner’s
Manual ). A qualified technician
should perform this operation.
t o ensure optimum engine perfor -
mance, replace only with d enso
f K20 h R11 plugs or equivalent.
Steering Linkage and Boots
With the vehicle stopped, check for
excessive freeplay in the steering
wheel. Inspect the linkage for bend -
ing and damage and the dust boots
for deterioration, cracks and damage.
Replace any damaged parts. A
qualified technician should perform
these operations.