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:

Before refueling the vehicle
Close all the doors and windows, and turn the engine switch to the "lock" position (vehicles without a smart key system) or off (vehicles with a smart key system). Confirm the type of fuel. Fuel types Unleaded gasoline (octane rating 87 [research octane number 91] or higher) ...