2014 Prius hybrid with about 120k miles. When I go to start it, the car dash lights up fine but the engine doesn't start sometimes. You have to keep trying the start button and it eventually starts. I checked the 12v and it's performing fine. Not getting any dash lights, and nothing seems off under the hood. Just got the oil changed a couple of weeks ago. I thought it might be the key, so I changed the battery and it's still happening. I thought maybe the car wasn't detecting the key, so I tried using the spare key and still having issues. Any ideas on what it might be?
Of course the engine does not immediately start. You want a Ready. Are you saying the engine eventually turns over for ten seconds but does not run?
Two things: I have noticed with all of the Prii my family has owned, that I sometimes hit the start button without first looking for the "ready" symbol on the dash.......and sometimes that takes a few seconds. So, first just be sure that you aren't getting in too big of a hurry. Then, how exactly did you "check" the 12 V to know that it is "performing fine" ??