2006 Toyota Land Cruiser Owners Manual - Page 345

Checking suspension fluid AHC NOTICE Only use the Suspension fluid AHC for the active height control suspension. If you fill other fluids such as brake fluid, automatic transmission fluid, power steering fluid, engine oil, etc., the active height control suspension could be damaged. Checking brake fluid Under the unloaded condition, check the suspension fluid AHC in the following way. 1. Start the engine and put the vehicle height in the "LO" (Low) mode and then "N" (Normal) mode. 2. Turn off the ignition switch about 30 seconds after the "N" (Normal) mode indicator light comes on. 3. Make sure the fluid level is between "MAX" and "MIN". If the fluid level is lower than "MIN", have suspension fluid AHC filled by your Toyota dealer. To check the fluid level, simply look at the see- through reservoir. The level should be between the "MAX" and "MIN" lines on the reservoir. It is normal for the brake fluid level to go down slightly as the brake pads wear or when the fluid level in the accumulator is high. If the reservoir needs frequent refueling, it may indicate a serious mechanical problem. 318