P2711
Unexpected Mechanical Gear Disengagement
P2711 is an OBD-II diagnostic trouble code meaning: Unexpected Mechanical Gear Disengagement. Common causes: low or contaminated transmission fluid, wear of automatic transmission friction discs. Estimated repair cost: $56–278.
Symptoms
- Jerks when shifting gears
- Loss of power when driving
- Automatic transmission goes into emergency mode
- Check Engine Light Illuminates
- Unexpected gear shift while driving
Causes
- Low or contaminated transmission fluid
- Wear of automatic transmission friction discs
- Shift solenoids malfunction
- Problems with the automatic transmission hydraulic system
- Mechanical damage inside the gearbox
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the gearshift solenoids
- Check the hydraulic pressure in the automatic transmission system
- Perform computer diagnostics of automatic transmission
- If necessary, repair or replace automatic transmission components
Related codes
Error P2711 by Vehicle Brand
FAQ
What does the P2711 code mean?
P2711 is an OBD-II diagnostic trouble code that indicates: Unexpected Mechanical Gear Disengagement
What causes a P2711 error code?
The most common causes of P2711 include: Low or contaminated transmission fluid; Wear of automatic transmission friction discs; Shift solenoids malfunction; Problems with the automatic transmission hydraulic system.
How do I fix a P2711 diagnostic trouble code?
To fix P2711: Check the level and condition of the transmission fluid. Diagnose the gearshift solenoids. Check the hydraulic pressure in the automatic transmission system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2711?
Do not drive — repair immediately
How much does it cost to fix P2711?
The estimated repair cost for P2711 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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