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Service Intervals & Specifications

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
REPLACEMENT INTERVALS (ES300, GS300, IS300, GS430, LS430 & SC430)

Component Months Miles
A/C Filter
Normal Service 18 22,500
Severe Service 8 10,000
Air Filter 24 30,000
Automatic Transaxle/Transmission Fluid (1)
Normal Service (2) (2)
Severe Service 48 60,000
Brake Fluid 24 30,000
Camshaft Timing Belt 72 90,000
Differential Fluid (1)
Normal Service (2) (2)
Severe Service 12 15,000
Engine Oil & Filter (1)
Normal Service 6 7500
Severe Service 4 5000
Spark Plugs 96 120,000
(1) Different interval is required for normal service and severe service. Severe service is described as using cartop carrier, trailer towing, operating for short trips of less than 5 miles in freezing temperatures, extensive idling or low speed driving for long distances, or operating in rough, muddy or dusty conditions.
(2) Service interval is not available from manufacturer.
REPLACEMENT INTERVALS (GX470, LX470 & RX300)

Component Months Miles
A/C Filter
Normal Service 18 22,500
Severe Service 8 10,000
Active Height Control (AHC) Suspension Fluid
GX470 & LX470 48 60,000
Air Filter 24 30,000
Automatic Transaxle/Transmission Fluid (1)
Normal Service (2) (2)
Severe Service 48 60,000
Brake Fluid 24 30,000
Camshaft Timing Belt 72 90,000
Differential Fluid (1)
GX470 & LX470
Normal Service (2) (2)
Severe Service 12 15,000
RX300
With Limited Slip Differential
Normal Service 48 60,000
Severe Service 12 15,000
Without Limited Slip Differential
Normal Service (2) (2)
Severe Service 12 15,000
Engine Oil & Filter (1)
Normal Service 6 7500
Severe Service 4 5000
Spark Plugs 96 120,000
Transfer Case (1)
Normal Service (2) (2)
Severe Service 12 15,000
(1) Different interval is required for normal service and severe service. Severe service is described as using cartop carrier, trailer towing, operating for short trips of less than 5 miles in freezing temperatures, extensive idling or low speed driving for long distances, or operating in rough, muddy or dusty conditions.
(2) Service interval is not available from manufacturer.
VALVE CLEARANCE ADJUSTMENT INTERVALS

Application Months Miles
All Models (1) (1)
(1) Manufacturer does not provide specific time or mileage recommendations for valve adjustment. If engine has been disassembled or noise exists from excessive valve clearance, valve clearance must be adjusted.
BELT ADJUSTMENT (Tension In Lbs. (kg) Using Burroughs Tension Gauge)

Application New Belt (1) Used Belt
ES300
A/C & Generator 139-191 (63-87) 66-110 (30-50)
Power Steering 146-190 (66-86) 73-117 (33-53)
GS300, IS300, GS430, GX470, LS430, LX470 & SC430
Serpentine Belt (2) (2)
RX300
A/C & Generator 139-191 (63-87) 66-110 (44-55)
Power Steering 150-185 (68-84) 95-135 (43-61)
(1) Used belt is a belt in operation at least 5 minutes.
(2) Automatic belt tensioner is used. Adjustment is not required. Belt must be replaced if arrow mark on automatic belt tensioner is not within area "A". See Fig 1 or Fig 2 .
Fig 1: Locating Arrow Mark On Automatic Belt Tensioner (GS300 & IS300)
G99A50401Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Locating Arrow Mark On Automatic Belt Tensioner (LX470 Shown; GS430, GX470, LS430 & SC430 Are Similar)
G99H08028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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