Honda CR-V: Emissions Controls

The burning of gasoline in your vehicle’s engine produces several byproducts.

Some of these are carbon monoxide (CO), oxides of nitrogen (NOx), and hydrocarbons (HC).

Gasoline evaporating from the tank also produces hydrocarbons. Controlling the production of NOx, CO, and HC is important to the environment.

Under certain conditions of sunlight and climate, NOx and HC react to form photochemical ‘‘smog.’’ Carbon monoxide does not contribute to smog creation, but it is a poisonous gas.

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 The Clean Air Act

The United States Clean Air Act* sets standards for automobile emissions. It also requires that automobile manufacturers explain to owners how their emissions controls work and what to do to

 Crankcase Emissions Control System

Your vehicle has a positive crankcase ventilation system. This keeps gasses that build up in the engine’s crankcase from going into the atmosphere. The positive crankcase ventilation valve

 Evaporative Emissions Control System

As gasoline evaporates in the fuel tank, an evaporative emissions control canister filled with charcoal adsorbs the vapor. It is stored in this canister while the engine is off. After the en

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 Playing an Optional Audio Unit

Your vehicle has the auxiliary input jack on the front panel, on the center table, or in the console compartment, depending on models. The system will accept auxiliary input from standard audio accessories. When a compatible audio unit is connected to the jack, press the AUX butto

 Dual Temperature Control

EX-L model only The temperatures of the driver’s side and the front passenger’s side can be controlled independently when the indicator in the DUAL button is on. To adjust the driver’s side, turn the driver’s side temperature control dial on the climate control panel. To ad

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