Patrol car key in Arc Raiders: how to find it and where to use it
The patrol car key in Arc Raiders is tied to the late-game “Armored Transports” quest, but it’s easy to end up with one (or a couple) sitting in your stash long before that objective pops. The item description only says it’s “used to open the rear door of a patrol car,” which doesn’t help much with where to go. If you’re holding a key or you’re on the “Armored Transports” step, here’s the short version of what actually matters.
Patrol car location in Arc Raiders

Head to the Outer Gates area on Blue Gate. Inside the Traffic Tunnel there are a few possible armored patrol car spawns. You’ll see plenty with their rear doors already popped, but you specifically need one with the back door still locked.
Use the patrol car key on that door and you’re in. Loot the weapon crate inside to complete “Armored Transports.” You don’t need to have the quest active to claim the rewards, so if a key turns up in your stash, toss it in your safe pocket and make a quick detour here for some solid gear. Keep an eye out for heavy Arc units in the vicinity — Bastions can make this run messy if you’re not ready.
Patrol car key location in Arc Raiders

If the key hasn’t dropped for you yet and the quest is active, go southwest of Outer Gates to the Checkpoint. There’s a row of security booths there; search them for the key. The objective text calls it an “armored patrol key card,” but it’s the same patrol car key you need.
No luck at the Checkpoint? Check the booth just inside the main doors to the Outer Gates as a backup. Since some players report losing the item after dying with it in their inventory, it’s smart to put the key straight into your safe pocket the moment you pick it up.
