service engine soon on 1999 Cadillac Seville STS

why does my cadillac only turn on when service engine soon light is on..?

by in New York, NY on October 14, 2009
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1 answer
ANSWER by , October 15, 2009
I'm not sure I understand this. The service engine soon light is the check engine light. You can read more about it here: It means that there is a problem with your car that could definitely be serious enough to affect starting.