P0736: Reverse Incorrect Ratio
What Does P0736 Mean?
P0736 is a diagnostic trouble code indicating: Reverse Incorrect Ratio. This code relates to the transmission system. It has been reported in NHTSA complaints across 4 different vehicle models.
The automatic transmission is controlled by the TCM using input from speed sensors, temperature sensors, and pressure sensors. When the TCM detects a fault, it may activate limp mode (2nd or 3rd gear only). Shift solenoids are electromagnetic valves inside the valve body controlling hydraulic fluid flow. Modern transmissions use 4-8 solenoids in combination for each gear. Solenoid failures are often caused by contaminated fluid — worn clutch material and degraded fluid create varnish that sticks solenoids. Always check transmission fluid first: level, color (red/pink good, brown/black bad), and smell (burnt = internal damage). Transmission DTCs escalate fast — a $200 solenoid fix can become a $3000-$5000 rebuild if ignored.
Symptoms of P0736
- ⚠️ Check engine/transmission warning light on
- ⚠️ Harsh, delayed, or erratic shifting
- ⚠️ Transmission stuck in one gear (limp mode)
- ⚠️ No upshift or no downshift
- ⚠️ Transmission slipping
- ⚠️ RPM flares between shifts
Common Causes
- 🔍 Faulty shift solenoid
- 🔍 Contaminated transmission fluid
- 🔍 Wiring issue between TCM and solenoid
- 🔍 Valve body wear
- 🔍 TCM internal failure
P0736 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"Bought vehicle new at Millennium Honda, Hempstead New York.Vehicle is not going into reverse when vehicle gets hot. My mileage is 40,512 took it Millennium Honda on October 4, 2025, for diagnostic testing error code P0736 was diagnosed and that my transmission would need’s replacing at a cost of $11"
— Honda Odyssey owner, 12/31/1969
"After Ford Recall 24E13 (Powertrain Control Module reprogramming) was completed on my 2019 Ford Expedition Max, the vehicle immediately developed transmission problems. It began hesitating to go into reverse and then produced DTC P0736 (reverse gear ratio incorrect). Within days, it failed to shift "
— Ford Expedition owner, 10/07/2025
"I JUST WANT TO VOICE MY FEELINGS ON THIS COMPANY (CHRYSLER) CONCERNING THE CHRYSLER PACIFICA 2005 AWD WHY WASN'T THIS CAR RECALLED AS A WHOLE. IT IS A PIECE OF CRAP I BOUGHT THIS CAR AS A RELIABLE FAMILY CAR BEING THAT I AM A SINGLE MOTHER OF 5. I RESEARCHED THIS CAR TO MAKE SURE THAT IT WAS GOING T"
— Chrysler Pacifica owner, 02/17/2009
Source: NHTSA Complaints Database
Most Reported Vehicles for P0736
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | HONDA ODYSSEY | |
| 2 | FORD EXPEDITION | |
| 3 | CHRYSLER PACIFICA | |
| 4 | CHRYSLER 200 |
P0736 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Diagnostic Tips
- Check fluid level and condition FIRST
- Multiple codes suggest valve body or internal damage
- Monitor solenoid duty cycle with scan tool
- Solenoids often accessible by removing pan
Common Mistakes to Avoid
- ❌ Replacing solenoid without flushing contaminated fluid
- ❌ Using aftermarket fluid instead of manufacturer-specified
- ❌ Driving in limp mode for extended periods
Frequently Asked Questions
What is a shift solenoid?
Can I drive in limp mode?
How much for solenoid replacement?
Can fluid change fix it?
What To Do Next
Possible Fixes
- 🔧 Replace shift solenoid or pack
- 🔧 Transmission fluid flush with manufacturer fluid
- 🔧 Repair wiring to transmission
- 🔧 Replace valve body
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.