There is a short answer to what Jimmy is, and a longer one about why it matters — both are here.
Short answer
In practical terms: know what it does, know where it appears, and the rest is context.
Its role has changed across updates, so older discussion describes something slightly different. The game introduces it quickly and assumes you picked it up, which is where the confusion starts. A single check up front replaces a lot of guessing later.
What it is
It is more consequential in the late game than the early one, which is why first impressions mislead. Two similarly named things exist, and mixing them up explains a lot of contradictory advice. Most of the disagreement you will find online is two people describing different builds. The wiki entry is thorough and buries the actually useful part six paragraphs down.
Community shorthand around it has drifted far enough from the original meaning to cause arguments. None of this needs a paid tool, a third-party launcher or an account on a site you have never heard of. Knowing this does not make you better at GTA 5, but it does make the rest of it legible.
Common misunderstandings
There is a persistent myth attached to it that has never been true in any version. The developers have changed their mind about this at least once, which explains the older advice. It appears in supplementary material in more detail than it does in the game.
- It rewards attention rather than preparation.
- Ignore the myth attached to it; it has never held up.
- Region and platform change more than people expect, so confirm both.
- Check which version of GTA 5 any discussion of it is describing.
- Note where it first appears, so you can go back if you need to.
Why people keep asking about it
Whether it is worth going out of your way for depends entirely on how you are playing. Where something depends on your platform or region, that is called out rather than glossed over. If your result differs from what is described here, note what is different first rather than starting over. The short version is near the top on purpose; the reasoning is there if you want to know why.
There is no hidden trick here that the game is keeping from you. It helps to understand why a step exists, because then you can adapt it when your situation is slightly different. The awkward part is rarely the step itself, it is knowing which step comes first.
Where you encounter it
Anything that behaves differently on console than on PC is flagged where it matters. Everything below is framed around the current state of GTA 5 rather than a launch-week impression. If a step reads as obvious, do it anyway — the obvious ones are the ones people skip and then wonder about.
There is usually a fast way and a reliable way, and it is worth knowing which one you are choosing. GTA 5 is not shy about hiding useful information two menus deep, so some of this is simply knowing where to look. What follows assumes you are on a current install and have not modified it.
What it changes in practice
The community wisdom on this is roughly half right, and the half that is wrong costs the most time. Patch notes move numbers around constantly; the shape of the answer holds even when a specific value shifts. Screenshots age faster than text, which is why this describes rather than shows.
Where people go wrong
- Downloading a helper tool for something the game already does in its own menu.
- Rushing the last step, which is usually the one with the actual requirement in it.
- Trusting a video thumbnail that promises a result the video never actually shows.
GTA V FAQ
How long does this take?
Minutes if it goes cleanly, an evening if you hit the edge case in the caveats list. Neither is unusual.
Where can I read more?
The official material covers it in more depth than the game does, and considerably more reliably than aggregated fan pages.
Is it important?
More than its screen time implies, less than the discussion around it implies. Somewhere in the middle.
Can I miss it?
Where it is missable, that is noted above. Most players encounter it without going looking for it.
Bookmark it if you like, but honestly, once you have done it once you will not need to come back.