Toyota Yaris Weird Start Noise

My 2008 yaris sounds weird when it starts. Any ideas? Check engine light has been on for a little more than a month, haven't had time to go to the shop yet. Dad thinks it may be serpentine belt.

[@winachance4315]

faq you dont make any sense

[@hitamkid3351]

Hi Kevin, did you find out what was causing this? I have had the same on my yaris for the past three mornings.

[@kecleonboi]

if i remember correctly it was a battery issue. had to buy a new one

[@Normand1833]

probleme whit your alternator.

[@lov3y_dov3y44]

ok and?