OBD-II code · Powertrain (generic)
P0780 Shift Malfunction
The TCM detects that a commanded shift between gears did not occur within the expected time and quality window. Slip rates or speed ratios remain implausible during shift.
Is it safe to drive with P0780?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyLow or degraded transmission fluid
- Most likelyShift solenoid stuck or worn
- PossibleClutch pack wear
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–12 h
- Emissions test
- Usually unaffected
- Parts involved
- Transmission Solenoid, Transmission Clutch Pack, Transmission Fluid, Valve Body
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.