What would cause the emissions light to be on in a Kia Sedona?

A bulb would cause it to illuminate!!

The airbag light would have nothing to do with emissions. If they are doing a safety inspection, it would fail.

Any fault that affects emissions will turn the light on. You need to have it checked for codes to know possible causes.

No. If your vehicle can pass an emissions test, chances are that it's just a bad sensor.

No. It would cause the check engine light to illuminate and fail an emissions test but it would start and run.

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions.

A blinking Check Engine light indicates a serious problem with the emissions system. Have this repaired immediately.

This would be indicated by a "blue shift" of spectral lines in its light emissions.

A problem with the emissions will sometimes shut off the traction control, thus illuminating the light.

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

It would cause light to refract differently because the angle at which the light hits the glass block would alter and there for the way the light refracts would also alter.

Yes, I blown head gasket will definitely effect the emissions.

bad heater core under dash

A dirty fuel filter could force a lean condition causing the check engine light to iluminate. In which case the vehicle would fail an emissions test.

I have a 2000 olds alero and the signal light only work sometimes, What would cause that?

The question should not be how do you turn the emissions light off....but rather what made my emissions light come on in the first place, if you would find a way to turn the light off and keep it off dont you think a bigger problem would happen while driving ? This light is there to warn you that a possible problem exists, to shut the light off without having someone read the code and try to fix the problem would be doing yourself and other passengers as well as the vehicle an injustice. Have someone scan the system with a code scanner and try to figure out what is happening in the system before attempting to shut off the light.

The check engine light will come on in a 2004 Kia Sedona 431 if a misfire is detected, the timing is wrong, or a weak spark is detected. There are many other possible causes which can be narrowed down by connecting an OBDII code reader to the vehicle.

No. The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

what would cause the ADVTRAC OFF light to remain on on my 2005 ford explorer

It could. The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area. It could. The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

The check engine light comes on when there is an emissions related failure. You need to have the system checked for trouble codes to know possible causes.

Torque Converter Clutch Solenoid is a possibility.