Sony DualSense Wireless Controller
DROP ITby Sony
Last verified September 13, 2026
💬 — ask a question or share feedback →A 2021 class-action lawsuit alleges Sony's own pre-release testing found the DualSense's 'drift defect' before the controller launched, and that subsequent firmware updates failed to fix it, leaving owners to pay for their own warranty repair shipping.
Sony markets the DualSense as a precision controller built around advanced haptic feedback and adaptive triggers for the PS5, positioned as a genuine input-fidelity upgrade over the previous generation without acknowledging any thumbstick reliability defect.
A class action filed in February 2021 by Chimicles Schwartz Kriner & Donaldson-Smith on behalf of PS5 owners alleges the DualSense suffers from a 'drift defect' that moves on-screen action without any player input on the joystick. The complaint alleges Sony was aware of the defect through online consumer complaints, direct customer complaints, and its own pre-release testing, but failed to fix it. According to the filing, subsequent software and firmware updates did little to resolve the issue, and customers with in-warranty controllers still had to ship them to a repair center at their own expense.
The specific allegation here is more serious than 'some units break': the complaint says Sony's own pre-release testing surfaced the defect before the DualSense ever shipped. Whether that allegation is proven in court or not, it's a formal legal claim, filed under Sony's name, that the company knew and sold the controller anyway -- and owners are on the record saying firmware updates didn't fix it and warranty repairs still cost them out of pocket in return shipping.
- ClassAction.org — A February 2021 class action alleges Sony's own pre-release testing found the drift defect before launch, and that firmware updates since have failed to resolve it.
The Easiest Way To Fix Stick Drift On PS5 Controller! — Ben Rowlands
Does the PS5 DualSense controller really have a drift problem?
A February 2021 class-action lawsuit alleges a widespread 'drift defect' where on-screen action moves without player input, and that Sony was aware of it through consumer complaints and its own pre-release testing.
Did Sony fix DualSense drift with a software update?
According to the class-action complaint, no — plaintiffs say firmware and software updates did little to resolve the issue, and owners with in-warranty controllers still had to pay to ship them for repair.