If the Light Is On Steady

You may be able to correct the emission system malfunction by considering the following:

Did you recently put fuel into your vehicle? If so, reinstall the fuel cap, making sure to fully install the cap.

The diagnostic system can determine if the fuel cap has been left off or improperly installed.

A loose or missing fuel cap will allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off.

Did you just drive through a deep puddle of water? If so, your electrical system may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off.

Have you recently changed brands of fuel? If so, be sure to fuel your vehicle with quality fuel.

Poor fuel quality will cause your engine not to run as efficiently as designed. You may notice this as stalling after start-up, stalling when you put the vehicle into gear, misfiring, hesitation on acceleration, or stumbling on acceleration.

(These conditions may go away once the engine is warmed up.) This will be detected by the system and cause the light to turn on.

If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off.

If none of the above steps have made the light turn off, your dealer can check the vehicle.

Your dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that may have developed.

    See also:

    Power Seats
    The power seat controls are located on the outboard side of the seat cushions. • Move the seat forward or rearward by sliding the horizontal control forward or rearward. • Raise or lower ...

    Driving at Night
    Night driving is more dangerous than day driving. One reason is that some drivers are likely to be impaired — by alcohol or drugs, with night vision problems, or by fatigue. Here are some ti ...

    Introduction
    The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, BUICK, the BUICK Emblem, and LACR ...