P0736 Code: Reverse Incorrect Ratio
🟠 Moderate severity · drivable
You can drive forward, but reverse may slip or not engage, so avoid relying on it until the transmission is repaired.
What P0736 means
The computer monitors gear ratios by comparing input and output shaft speeds. In Reverse, the ratio doesn't match what it should be, which usually means the reverse clutch or band is slipping. Low fluid or internal wear is often the cause.
Symptoms
- Check engine light is on
- Reverse slips or won't engage
- Delayed engagement when shifting into Reverse
- Transmission may go into fail-safe mode
Common causes
- most common: Low or dirty transmission fluid
- common: Worn reverse clutch or band
- common: Valve body or hydraulic circuit issue
- less common: Internal transmission damage
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check and top up transmission fluid | Yes | $20–60 |
| Have a shop test transmission line pressure | Mechanic | $100–200 |
| Rebuild or replace the transmission if the clutch is worn | Mechanic | $1500–3500 |
Frequently asked questions
Can I drive with a P0736 code?
You can drive forward, but reverse may slip or fail to engage. Avoid backing up more than necessary until the transmission is repaired.
What does reverse incorrect ratio mean?
It means the computer measured the gear ratio in Reverse and it doesn't match what Reverse should be. The usual cause is a slipping reverse clutch or band.
How much does it cost to fix a P0736?
If it's just low fluid, a top-up costs $20–$60. If the transmission needs a rebuild, expect $1,500–$3,500.
Related codes
P0730
P0730 Code: Incorrect Gear Ratio
P0745P0745 Code: Pressure Control Solenoid A
P0700P0700 Code: Transmission Control System Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.