OBD Codes List

Diagnostic reference · P0811

P0811

Excessive Clutch A Slippage

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P0811 means Excessive Clutch A Slippage.

Check these first

  • A worn clutch A disc or pressure plate
  • An incorrect clutch A adjustment
  • Fluid contamination on clutch A
  • Clutch A overheating from slipping
  • A faulty clutch A position sensor

What to do next

  1. Read clutch A slip data on a scan tool
  2. Check the clutch A adjustment
  3. Inspect the clutch A for wear or contamination
  4. Check the clutch A position sensor signal
  5. Replace the clutch A if it is worn
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.