Toyota Highlander Owners Manual: Theft deterrent system

Exhaust gas precautions

Harmful substance to the human body is included in exhaust gases if inhaled Warning Exhaust gases include harmful carbon monoxide (co), which is colorless and odorless. Observe the ...

Engine immobilizer system

The vehicle’s keys have built-in transponder chips that prevent the engine from starting if a key has not been previously registered in the vehicle’s on-board computer. Never leave the keys i ...

More about Toyota Highlander:

Inspection
1. INSPECT VENTILATION VALVE SUB-ASSY (a) Install a clean hose to the ventilation valve. (b) Check ventilation valve operation.  Blow air into the cylinder head side, and check that air passes through easily. CAUTION: Do not suck air through the valve. Petroleum substances insi ...