Forum Discussion

AlexanderPD's avatar
AlexanderPD
Rising Scout
2 days ago

Fanatec GT DD Pro – How to Fix Severe FFB oscillation after second session

Hi everyone! Since my english is very bad i made the AI wrote this post for me, but those are my real findings after hours of trials and errors, hope this helps!

I wanted to report an issue I was experiencing with my Fanatec Gran Turismo DD Pro in F1 25, which I have now been able to reproduce and solve.

After updating the GT DD Pro to the latest firmware with FullForce support, I started experiencing extremely violent left/right oscillations of the wheel at higher speeds when driving.

The strange part was that the problem was session-dependent:

  • The first session after starting F1 25 was completely normal.
  • When starting a second race/session, the FFB would suddenly become unstable.
  • At higher speeds, the wheel would violently oscillate left and right on its own, making the car practically undriveable and causing crashes under braking.
  • Pausing the game and power-cycling the DD Pro (OFF → ON) would immediately fix the problem.
  • However, the problem would return again when starting another session.

I initially suspected an F1 25 issue, especially because this started around the time of the latest game update.

I tried several settings on both fanatec app and F1 game, but none of these provided a satisfactory solution.

The important finding

I downgraded the DD Pro firmware to the last pre-FullForce firmware, available in the v1.4.2.3 Fanatec app Installer:

  • GT DD Pro Base: 1.8.0.6
  • GT DD Pro Motor: 1.0.3.2

I then tested F1 25 again under the same conditions.

The problem is completely gone.

I tested multiple consecutive sessions without power-cycling the wheelbase, and the violent oscillation did not return.

This makes me strongly suspect that there is a firmware/FFB state-management issue affecting the GT DD Pro with the newer FullForce firmware, rather than this being purely an F1 25 setup issue.

For anyone experiencing the same problem, the pre-FullForce firmware is therefore worth testing.

Obviously, downgrading means losing FullForce functionality, but in my case the difference is dramatic: the DD Pro is completely stable again in F1 25.

I hope this helps other GT DD Pro users who are experiencing the same issue, and hopefully Fanatec can investigate what changed between the pre-FullForce firmware and the current firmware.

System:

  • Fanatec GT DD Pro
  • F1 25 (PC, using EA App)
  • Latest F1 25 update
  • RTX 5080 / Ryzen 9 9950X3D

If anyone from Fanatec needs additional information or testing, I would be happy to provide it.

2026 season pack
guides

2 Replies

  • SilverOmega_88it's avatar
    SilverOmega_88it
    Seasoned Newcomer
    1 day ago

    Hi everyone! Joining the thread because I am experiencing exactly the same issue on PC after installing the latest F1 patch. My setup is a Fanatec GT DD Pro (8 Nm).

    The issue is completely systematic and reproduces only during session transitions:

    • When it happens: At the beginning of any new session (e.g., entering Qualifying for the first time, or transitioning from Qualifying to the Race right when the lights appear).
    • The symptoms: The moment I exit the pit lane or the race starts, there is an immediate and drastic drop in FFB strength. Immediately after, the Force Feedback suddenly kicks back in full force, triggering violent oscillations. The wheel shakes so heavily that I cannot stop it even by holding the rim firmly with both hands.
    • The workaround: The only way to fix it is to pause the game, turn the wheel base off, and turn it back on.
    • The weird part: If I am within the same session (like Qualifying) and select "Restart Session" from the menu, the bug does not happen. It only triggers when loading a session for the very first time (from the Hub to Qualy, and from Qualy to the Race grid).

    It is incredibly frustrating, especially for online races where you obviously cannot pause the game to power cycle the base.

    I have already updated to the latest Fanatec App version (1.5.4.2) and latest firmware, but the issue completely persists.

    Has anyone found a workaround or know if Codemasters/EA is aware of this FFB bug introduced in the latest patch? Are you guys running specific Fanatec driver/firmware versions that bypass this? 

Recent Discussions