2000 Nissan maxima - Engine does not start

Hello everyone,

I am an owner of 2000 Nissan Maxima SE. The car has clocked around 176000 miles till date. I had the batteries changed 4 months back and oil change is done at regular intervals. Today i drove the car around 25 miles without a problem and parked for an hour. When i came back i couldn't start the car. The warning lights "service engine soon" , " battery " & "Oil service" are on. I am able to turn the headlights to on. So I guess, the battery is not having a problem. Please let me know what would possibly be the reason. Any help is really appreciated.

Regards,
JJ