P0756 Code: Shift Solenoid B Performance or Stuck Off
🟠 Moderate severity · drivable
Drivable, but the transmission may miss 3rd gear or fall back to limp mode.
What P0756 means
Shift solenoid B directs fluid to engage the 2-3 shift in most transmissions. This code means the solenoid isn't performing as commanded and is likely stuck off. The transmission may not shift into 3rd gear, or the computer may limit the car to a safe mode.
Symptoms
- Check engine light is on
- No 3rd gear or missed shifts
- Transmission stuck in one gear or limp mode
- Harsh shifts or transmission slipping
Common causes
- most common: Faulty or stuck shift solenoid B
- common: Low or dirty transmission fluid
- common: Clogged valve body or hydraulic passage
- less common: Damaged wiring or connector in the solenoid circuit
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check and top up the transmission fluid level and condition | Yes | $20–60 |
| Replace shift solenoid B | Mechanic | $100–400 |
| Rebuild or replace the valve body if passages are clogged | Mechanic | $400–1200 |
Frequently asked questions
Can I drive with a P0756 code?
Yes, but the car may stay in limp mode or miss 3rd gear. Keep trips short until it's repaired.
What is the most common cause of P0756?
A faulty or stuck shift solenoid B. Low or dirty transmission fluid is also very common.
How much does it cost to fix a P0756?
A shift solenoid replacement is usually $100–$400, plus a fluid service if the fluid is dirty.
Related codes
P0757
P0757 Code: Shift Solenoid B Stuck On
P0751P0751 Code: Shift Solenoid A Performance or Stuck Off
P0700P0700 Code: Transmission Control System Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.