OBD
P0868
Transmission Fluid Pressure Low
What it means
P0868 means Transmission Fluid Pressure Low.
Check these first
- Low transmission fluid level
- A worn transmission pump
- A clogged transmission filter
- A stuck line pressure regulator valve
- A leak in the pressure circuit
What to do next
- Check the transmission fluid level and condition
- Read line pressure on a scan tool
- Check the transmission filter for a clog
- Test the line pressure regulator valve
- Check for leaks in the pressure circuit
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.