Code result

P2711

Unexpected Mechanical Gear Disengagement

High severity

What it means

The transmission disengaged mechanically without a corresponding command. The vehicle can free-wheel, which is a safety concern. Often a hydraulic or hardware fault inside the gearbox.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Clutch piston seal failure releases gear

    high

    One of the most commonly reported causes for this code — check this first.

  • Sudden hydraulic pressure loss

    medium

    A plausible cause — test and verify before replacing parts.

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