Just to cover the basics. Have you tried to jump start the vehicle?
As you know the battery can have enough power to turn on the lights and accessories, but not enough to start the engine.
So first try to jump start it.
If you are able to jump start it and the vehicle runs normal than it is a bad battery and needs to be replaced.
If it still just clicks, then the issue could be a bad starter or a bad connection to the starter.
Make sure the battery cable is secured both on the battery terminal and the starter and clear of any corrosions.
Here is a helpful guide:
I have attached diagrams for your reference.
Please let me know if you have any questions.
Images (Click to enlarge)
Saturday, December 4th, 2021 AT 5:49 PM