OBD-II code · Powertrain (generic)
P0766 Shift Solenoid D Performance
Shift Solenoid D Performance: the component is electrically intact but its response does not match the command. Shift solenoids route transmission hydraulic pressure to engage the gears; faults cause harsh, delayed, or missed shifts.
Is it safe to drive with P0766?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySolenoid sticking mechanically
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
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Shift Solenoid, Valve Body
Related codes
- P0751Shift Solenoid A Performance
- P0756Shift Solenoid B Performance
- P0761Shift Solenoid C Performance
- P0765Shift Solenoid "D" Malfunction
- P0763Shift Solenoid "C" Electrical
- P0764Shift Solenoid C Intermittent
- P0767Shift Solenoid D Stuck On
- P0768Shift Solenoid "D" Electrical
- P0769Shift Solenoid D Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.