towing capacity – 2019 Toyota Rav4

I have a 2019 Toyota Rav4 and I need to tow a trailer, according to my
Vehicle towing limit, it states it has a towing capacity of 1,500LB. However, I
recently purchased a tow hitch with a towing capacity of 4,500LB.

Does that change anything? is my towing Capacity now 4,500 or still 1,500?
I understand the hitch could pull up to 4,500 pounds, but my limit would still
be 1,500? or am I mistaken.