1999 Lexus SC 300FACTORY OEM SERVICE PROCEDURE

Service Intervals & Specifications

REPLACEMENT INTERVALS OR (ES300, GS300, GS400, LS400, SC300 & SC400)

Component Months Miles
A/C Filter
GS300, GS400 & LS400 12 15,000
Air Filter 24 30,000
Brake Fluid 24 30,000
Camshaft Timing Belt 72 90,000
Coolant 24 30,000
Engine Oil & Filter (1)
Normal Service 6 7500
Severe Service 4 5000
Spark Plugs
GS300 & SC300 48 60,000
ES300, GS400, LS400 & SC400 72 90,000
Automatic Transaxle/Transmission Fluid (1)(2)
Normal Service (3) (3)
Severe Service 12 15,000
Differential Fluid (1)
Normal Service (3) (3)
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) On models with transaxle, if transaxle has separate differential fluid reservoir on the transaxle, change differential fluid when changing transaxle fluid.
(3) Service interval is not available from manufacturer.
REPLACEMENT INTERVALS OR (LX470 & RX300)

Component Months Miles
A/C Filter
LX470 12 15,000
RX300 24 30,000
Air Filter 24 30,000
Brake Fluid 24 30,000
Camshaft Timing Belt 72 90,000
Coolant 24 30,000
Engine Oil & Filter (1)
Normal Service 6 7500
Severe Service 4 5000
Spark Plugs 72 90,000
Automatic Transaxle/Transmission Fluid (1)
Normal Service (2) (2)
Severe Service 12 15,000
Transfer Case (1)
Normal Service (2) (2)
Severe Service 24 30,000
Differential Fluid (1)
LX470
With Limited Slip Differential
Normal Service 24 30,000
Severe Service 12 15,000
Without Limited Slip Differential
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
Repack Front Wheel Bearings
LX470 24 30,000
Active Height Control (AHC) Suspension Fluid
LX470 48 60,000
(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) 48 60,000
(1) Manufacturer recommends listening for valve noise from excessive valve clearance. Adjust valve clearance if valve noise exists.
BELT ADJUSTMENT OR Tension In Lbs. (kg) Using Burroughs Tension Gauge

Application New Belt (1) Used Belt
ES300
A/C 139-191 (63-87) 99-121 (44-55)
Generator 170-180 (77-82) 95-135 (43-61)
Power Steering 150-185 (68-84) 95-135 (43-61)
GS300, GS400, LS400 & LX470 (2) (2)
RX300
A/C 139-191 (63-87) 66-110 (30-50)
Generator 170-180 (77-82) 70-110 (32-50)
Power Steering 150-185 (68-84) 95-135 (43-61)
SC300 & SC400 (2) (2)
(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-Fig 3 .
Fig 1: Locating Arrow Mark On Automatic Belt Tensioner (GS300 & SC300)
G99A50401Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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