Batman™: Arkham Knight

Batman™: Arkham Knight

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acecrisp Jul 19, 2015 @ 3:18pm
Anyone else had problems getting Sonar to activate?
I am trying to do the sonar challenges and ive done the Arkaim Knight searc where i got it but now that i need it again it wont activate.

by keyboard its F key
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Showing 1-9 of 9 comments
APi Jul 19, 2015 @ 3:25pm 
It's not sonar, while in battle mode you need to scan, on a controller its the same key as detective mode, I assume it will be the equivalent on keyboard too
Moon Rabbit Jul 19, 2015 @ 3:43pm 
Originally posted by acecrisp:
I am trying to do the sonar challenges and ive done the Arkaim Knight searc where i got it but now that i need it again it wont activate.

by keyboard its F key

You mean the forensic scanner to follow tire tracks?
For that you need to use it at the last place the tracks are visible (I know it's stupid), you need to find the end the glowing tracks and scan where they end to get the tracks to continue to appear. You can't just scan anywhere you know the tracks are, you need to follow the tracks while scannning to get them to fill out until you reach the destination.

Or are you talking about the seismic pulse used later in the game? Because sometimes it doesn't work depending on where you are, and if you're not currently doing the mission chain in which it is required. I don't think it activates at all unless the mission is actually active.
Last edited by Moon Rabbit; Jul 19, 2015 @ 3:44pm
I Love Emma Stone Jul 19, 2015 @ 9:02pm 
You mean to free the plant for, Poison Ivy? If so it took me forever to realize that I have to hold in the F key in order for it to work.

Before that, I had spent hours and hours and hours on end just tapping the F key and not a damn thing happened.
MR Legendary Dec 5, 2016 @ 1:55am 
im on the cloudburst tank mission and im in battle mode holding f and litteraly nothing is happening
James Bong Jun 10, 2017 @ 11:21pm 
Originally posted by Based Assad:
im on the cloudburst tank mission and im in battle mode holding f and litteraly nothing is happening

Did you ever figure this out?
IRWorm Jun 11, 2017 @ 7:18am 
Had the same problem. F didn't do anything UNTIL I tried using it without turning on the Batmobile's detective scanner first. Turned it off, held down F. Works like it should.
Muleta Nov 15, 2023 @ 12:16pm 
Go to founders island first, after press and hold F
theicewind Apr 29, 2024 @ 10:25pm 
wait how was I supposed to know to press F? The game doesn't tell this. Not even a hint. When you open objectives and select this mission it doesn't mention F in any way.
Muleta May 4, 2024 @ 3:48am 
Originally posted by theicewind:
wait how was I supposed to know to press F? The game doesn't tell this. Not even a hint. When you open objectives and select this mission it doesn't mention F in any way.
sim, o jogo tem alguns erros como este mas pelo menos agora você sabe. Lembre-se vá a ilha correta e pressione F


Yes, the game has some bugs like this but at least now you know. Remember go to the correct island and press and hold F

Last edited by Muleta; May 4, 2024 @ 3:49am
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Date Posted: Jul 19, 2015 @ 3:18pm
Posts: 9