Saturn 2010 AURA User Manual download pdf (Page 188)

Light On Steady: An emission control system

malfunction has been detected on the vehicle. Diagnosis

and service might be required.

An emission system malfunction might be corrected by

doing the following:

• Make sure the fuel cap is fully installed. See Filling

the Tank on page 6-10. The diagnostic system can

determine if the fuel cap has been left off or

improperly installed. A loose or missing fuel cap

allows fuel to evaporate into the atmosphere. A few

driving trips with the cap properly installed should

turn the light off.

• If the vehicle has been driven through a deep

puddle of water, the vehicle’s electrical system

might be wet. The condition is usually corrected

when the electrical system dries out. A few driving

trips should turn the light off.

• Make sure to fuel the vehicle with quality fuel. Poor

fuel quality causes the engine not to run as

efficiently as designed and can cause: stalling after

start-up, stalling when the vehicle is changed

into gear, misﬁring, hesitation on acceleration, or

stumbling on acceleration. These conditions

might go away once the engine is warmed up.

If one or more of these conditions occurs, change

the fuel brand used. It will require at least one

full tank of the proper fuel to turn the light off.

See Gasoline Octane on page 6-6.

If none of the above have made the light turn off, your

dealer/retailer can check the vehicle. The dealer/retailer

has the proper test equipment and diagnostic tools to

ﬁx any mechanical or electrical problems that might have

developed.

Emissions Inspection and Maintenance

Programs

Some state/provincial and local governments have or

might begin programs to inspect the emission control

equipment on the vehicle. Failure to pass this inspection

could prevent getting a vehicle registration.

Here are some things to know to help the vehicle pass

an inspection:

• The vehicle will not pass this inspection if the check

engine light is on with the engine running, or if the

key is in ON/RUN and the light is not on.

• The vehicle will not pass this inspection if the

OBD II (on-board diagnostic) system determines

that critical emission control systems have not been

completely diagnosed by the system. The vehicle

would be considered not ready for inspection.

This can happen if the battery has recently been

replaced or if the battery has run down. The

diagnostic system is designed to evaluate critical

emission control systems during normal driving.

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