Shift Solenoid G Stuck On
Shift solenoid G remains hydraulically active even when the TCM commands it off. The corresponding clutch or band stays applied, blocking shifts that need it released — typical symptoms are harsh engagement, stuck in a single gear, or refusal to shift cleanly.
Affected components
- Shift solenoid g
- Valve body
Common causes
- High likelihood: Solenoid stuck open by debris
- Medium likelihood: Stuck valve spool in the valve body
- Low likelihood: Carbon or debris buildup preventing free movement
Possible 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
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.