P0218 Code: Transmission Fluid Over Temperature Condition
🟠 Moderate severity · drivable
Drivable with caution, but an overheating transmission can be damaged, so avoid heavy loads and fix it soon.
What P0218 means
The transmission fluid is running too hot. Overheating breaks down the fluid and can cause internal damage, so the computer sets this code as a warning.
Symptoms
- Check engine light is on
- Harsh or slipping shifts
- Burning smell from the transmission
- Transmission may enter limp mode
Common causes
- most common: Low or old transmission fluid
- common: Heavy towing or stop-and-go driving overheating the fluid
- less common: Faulty transmission cooler or cooling system
- less common: Internal transmission slipping generating excess heat
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check the fluid level and condition, and top up or change it | Yes | $100–250 |
| Inspect the transmission cooler for blockage or damage | Mechanic | $100–300 |
| Repair internal transmission slipping | Mechanic | $800–3000 |
Frequently asked questions
Can I drive with a P0218 code?
With caution and light loads, yes, but an overheating transmission can be damaged quickly. Fix it soon.
What is the most common cause of P0218?
Low or old transmission fluid, often aggravated by towing or stop-and-go driving.
How much does it cost to fix a P0218?
A fluid change is $100–$250. Internal repairs run much higher if the transmission is already damaged.
Related codes
P0711
P0711 Code: Transmission Fluid Temperature Sensor A Circuit Range/Performance
P0713P0713 Code: Transmission Fluid Temperature Sensor A Circuit High
P0700P0700 Code: Transmission Control System Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.