Matt B posted an answer for this 2004 Cadillac Deville:
"Its possible that a bulb for a warning light such as CHECK/SERVICE ENGINE or ABS may be..."
Matt B posted an answer for this 2002 Volkswagen Jetta TDI:
"02 VW Jetta GL TDI WON'T start or HARD start as in takes alot of cranking over to finally..."