My 2013 Sienna starts a little slower than usual, but the biggest issue is the engine will kill as I slow for a stop or turn. I shut it off, and start it right back up, but when I stop giving it gas or hit the brakes, it kills again. What could cause this?
Also, is there a way to read codes without a reader? In my old Chrysler Voyager, I could turn the key 3 times, and it would display the codes on the odometer display. Thanks for any help!

Have you done any service on it recently ? What's the mileage ? No, you'll need a obd2 scanner. Any basic one will give you code and definitely worth investing you planning to own any car nowaday

 

I replaced the battery. After the first time it killed on me, I took the battery in, and it tested bad. I thought that would fix the issue, but it was worse after that. It's driven daily for work - roughly 208k miles. I think I'll start by cleaning the throttle body and MAF sensor. Will pick up a scanner too. Thanks for the help!

 

If you are near an O'Reily's auto store, they will read the codes for you for free, or lend you the scanner for free.