P0736
Reverse Incorrect Ratio
Transmission
Generic OBD-II
High
What it means
P0736 means the transmission computer detected an incorrect gear ratio in reverse — the input-to-output speed relationship doesn't match what's expected. This usually points to slipping, a shift-solenoid problem, or internal wear affecting reverse. Forward gears may be fine, but reverse can slip or engage poorly.
High
Can I keep driving? Drivable forward, but reverse may slip or engage harshly; have the transmission checked before it worsens.
Common symptoms
What you'll notice
- Slipping or hesitation when in reverse
- Harsh or delayed reverse engagement
- Check-engine light on, sometimes with limp mode
- Reduced power backing up
Common causes
Most likely first
- Low or contaminated transmission fluidLikely
- Faulty reverse shift or pressure-control solenoidCommon
- Worn clutches or bands serving reverseCommon
- Valve-body or torque-converter faultLess often
- Internal mechanical wear in the transmissionLess often
How to diagnose & fix
Work through it in order
- Scan and confirm the code applies to reverse; note the fluid condition.
- Check transmission fluid level and quality; correct if low or burnt.
- Test the shift and pressure-control solenoids.
- Inspect the valve body; if slipping persists, have the transmission inspected professionally. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0736?+
You can usually drive forward normally, but reverse slipping tends to worsen and can lead to bigger transmission damage. Get it looked at soon.
Can I just clear P0736?+
It returns once reverse is used again if the slip or solenoid fault remains; clearing doesn't repair the ratio problem.
Related codes
Often seen with P0736
Read & clear P0736 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX