engine LEXUS RX350 2012 Owner's Guide

e xplanation of Maintenance i te MS
MAINTENANCE
Scheduled Maintenance Log 69Cabin Air Filter
Replace at specified intervals.
More frequent replacement may
be required when driving in dusty
conditions, heavy traffic areas, urban
areas, desert areas or dirt roads.
Refer to your Owner’s Manual for
service details.
Differential Oil
Check for correct oil level and
inspect each differential component
for signs of leakage. If you discover
any leakage, have it repaired
immediately by a qualified technician.
Refer to your Owner’s Manual for
fluid specifications.
Drive Belt
Inspect for cracks, excessive wear
and oiliness. Check the belt tension
and adjust if necessary. Replace the
belts if they are damaged. Drive Shaft
Re-torque the flange nuts and bolts.
A qualified technician should perform
this operation.
Driver’s Floor Mat
• Only use the driver’s floor mat
de si gned specifically for the
model and model year of your
vehicle, such as Lexus Genuine
floor mats.
• Always properly secure the
driver’s floor mat using the
retaining hooks.
• Never install another floor mat
on top of the existing driver’s
floor mat.
• Never install the driver’s floor
mat upside down.
Engine Air Filter
Check for excessive dirt, damage and
oiliness. Replace if necessary.

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.

*See scheduled maintenance log for maintenance interval.
74
INDEXAxle shaft boots ....................................................... 4 8 – 67*, 6 8
Ball joints and dust covers ............................................. 4 8 – 67*, 6 8
Body inspection ....................................................... 4 8 – 67*, 6 8
Body repairs ...................................................................... 7
B rakes
Fluid ................................................................... 4 2, 68
L ines and hoses .................................................. 4 8 – 67*, 6 8
P ads, calipers and rotors ......................................... 4 8 – 67*, 6 8
Cabin air filter ......................................................... 4 8 – 67*, 69
Complimentary services
M aintenance services .............................................. 4 , 45–46
O ther services ........................................................... 5– 6
Differential oil ......................................................... 4 8 – 67*, 69
Dispute resolution ......................................................... 9– 13, 21
Drive belt .............................................................. 4 8 – 67*, 69
Drive shaft ............................................................. 4 8 – 67*, 69
Driver’s floor mat ...................................................... 4 8 – 67*, 69
Emergency repairs ......................................................... 3 7– 3 8
Engine air filter ........................................................ 4 8 – 67*, 69
Engine coolant .................................................... 4 2, 48–67*, 70
Engine oil and filter ................................................ 4 2, 48–67*, 70
Exhaust pipes and mountings ........................................... 4 8 – 67*, 7 1
Fuel lines and connections, fuel tank band and
fuel tank vapor vent system hoses ...................................... 4 8 – 67*, 7 1
Fuel tank cap gasket .................................................... 4 8 – 67*, 7 1
Inspections, general maintenance .......................................... 4 2– 43
INDEX