Lexus 2003 LS Owner's Manual page 362

INTRODUCTION
Checking brake fluid
Parts (if level is low):
A FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
A Funnel (only for adding fluid)
Checking power steering fluid
Parts (if level is low):
A Automatic transmission fluid DEXRON
Tools:
A Rag or paper towel
A Funnel (only for adding fluid)
Checking battery condition
Tools:
A Warm water
A Baking soda
A Grease
A Conventional wrench (for terminal clamp bolts)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):
A Fuse with same amperage rating as original
348
Checking the cartridge type fuses
Parts (if replacement is necessary):
A Genuine Lexus fuse or equivalent with same amperage
rating as original
Adding washer fluid
Parts:
A Water
A Washer fluid containing antifreeze (for winter use)
B
II or III
Tools:
A Funnel