Engine light amber turned, but not blinking

Honestly there are hundreds of things that could cause that. Anything from a simple loose gas cap to a bad sensor or even a serious internal engine problem (unlikely at 45,000 miles). What you need to do is get it scanned with an OBD2 scanner. The family or neighbor gearhead has one and will probably let you borrow it. Or you can go to the local parts store and get them to scan it. Write down the code numbers (yes, the numbers) and report them here. We'll help you troubleshoot it from there. Here's a link to our guide on scanning the car:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also, AllData does not show that there was a 2010 Nissan Juke. They do show a 2011 though. Please post your VIN number so I can look into this. It'll be in the driver's door jamb as well as under the windshield, driver's side, easily visible from the outside.

Let us know what you find.