2004 Lexus IS 300 Owners Manual - Page 367

03 07.09 CHASSIS CHECKING POWER STEERING FLUID SV63003 SV63002 " 1 If cold O.K. 2 If hot O.K. 3 Add fluid 1. Clean all dirt off the reservoir. Check the fluid level on the dipstick. If necessary, add automatic transmission fluid DEXRONRII or III. If the vehicle has been driven around 80 km/h (50 mph) for 20 minutes (a little more in frigid temperatures), the fluid is hot (60_C - 80_C or 140_F - 175_F). You may also check the level when the fluid is cold (about room temperature, 10_C - 30_C or 50_F - 85_F) if the engine has not been run for about five hours. 2. Remove the reservoir cap by turning it counterclockwise and wipe the dipstick clean. 3. Reinstall the reservoir cap. 4. Remove the reservoir cap again and look at the fluid level. If the fluid is cold, the level should be in the "COLD" range on the dipstick. Similarly, if it is hot, the fluid level should be in the "HOT" range. If the level is at the low side of either range, add automatic transmission fluid DEXRONRII or III to bring the level within the range. 5. After replacing the reservoir cap, visually check the steering box case, vane pump and hose connections for leaks or damage. 348