Quick overview of changing the automatic transmission fluid in a 2015 Acura RDX. Procedure is the same for many Honda and Acura cars and suv's.

Honda DW1 ATF (4 quart pack)
https://amzn.to/2IQAqu5

2 Pack of Funnels
https://amzn.to/2U7aEqS

Underhood light (corded) not the exact one I have but similar
https://amzn.to/2Wr9cm7

GearWrench 18" extension (3/8" drive)
https://amzn.to/39Zeeu0

GearWrench 3/8" flex head ratchet
https://amzn.to/2QiYPg7

GearWrench 18" breaker bar (3/8" drive)

Drain Pan
https://amzn.to/2TPuisu