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It is possible to turn off the check engine light on a vehicle, including a Grand Am, by disconnecting the battery. It must remain disconnected for at least five minutes. In some cases, this won't remove the trouble code... More »

The recommended way to reset the service light in a vehicle is to repair the part that is causing the service light to be active. Short-term fixes include disconnecting the battery of the vehicle and draining the remaini... More »

To disable the service engine light in a vehicle, use a scan tool, or disconnect the car's battery. It is easier and safer to use a scan tool, though without one, the process generally takes 20 to 30 minutes. More »

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According to The Family Handyman, a common reason a car does not start is a dead or discharged battery. The vehicle's lights may provide an indicator of the battery condition. If they dim when the ignition switch is turn... More »

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To reset a check engine light yourself, disconnect the car battery, then turn on the headlights for a few minutes to drain the remaining energy and cause a hard reset. Finally, reconnect the battery. More »

The only ways to reset the check engine light on a Dodge Neon are to use an onboard diagnostics tool or to disconnect the battery. Although disconnecting the battery resets the check engine light in most cases, most mech... More »

If the problem has been diagnosed and fixed but the check engine light is still on, either use an auto scan tool or simply disconnect and reconnect the battery. If there is still a problem with the engine, disconnecting ... More »