So this is how I replaced the height beams on a 2015 Nissan Altima this should work on a 2014-2018 Nissan Altima. I didn’t use any tools except to remove the clip but anything flat will take the clip out it might have been easier with tools but I was figuring it out while I was going and didn’t use any and I don’t have small hands but was able to do it so if your hands are larger you might want to remove or at least move the battery.

Link to lights since people keep asking they will fit both high and low beams: SEALIGHT H11 H8 H9 H16 LED Bulbs,... https://www.amazon.com/dp/B0CLCZMJDJ?...