PRECAUTION PRECAUTIONS FOR VEHICLE PROXIMITY NOTIFICATION SYSTEM (a) In the following cases, the volume or tone of the sound might change: (1) If the vehicle is parked in a very hot or cold environmen
DESCRIPTION When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. Extremely high hydrocarbon concentration levels can cause an increase in exhaust emission levels. Extremely high concentrations of hydrocarbons can also cause increases in the three-way catalytic co