P0780: Shift Error
What Does P0780 Mean?
P0780 is a diagnostic trouble code indicating: Shift Error. This code relates to the transmission system. It has been reported in NHTSA complaints across 5 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 P0780
- ⚠️ 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
P0780 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"Case #16014967 Topic: Recalls/Campaigns VIN: [XXX] Vehicle Mileage: 64,935 Description: Subject: Transmission Recall Concern – 2015 Honda CR-V CVT Dear American Honda Customer Service / NHTSA, I am reporting transmission problems with my 2015 Honda CR-V that appear directly related to the CVT trans"
— Honda Cr-V owner, 12/01/2025
"WHEN IN LOW GEARS 1-2, 2-3 GEARS JERKS. HIGH REV THEN STRONG JERK. FELT LIKE GEARS SLIPPED. CAR THEN BECAME SLUGGISH AND WOULD NOT POWER OF 5MPH. CHECK ENGINE LIGHT CAME ON. HAD CAR CHECKED CODE P0780 SHOWED. SHIFT MALFUNCTION. THIS SEEMS TO BE ON GOING WITH MAXIMA 04-06. RECALL MUST BE CALLED!!!! *"
— Nissan Maxima owner, 03/16/2013
"I WOULD LIKE TO ADD TO THE GROWING NUMBER OF CONCERNED CONSUMERS THAT ARE EXPERIENCING THE SAME PROBLEM THAT I'M HAVING WITH MY 2006 NISSAN MAXIMA SL TRANSMISSION. I PURCHASED THIS VEHICLE IN AUGUST 09. I CURRENTLY HAVE 64,000 MILES AND HAD THE VEHICLE LESS THAN 2YRS. AND NOW THE TRANSMISSION HAS GO"
— Nissan Maxima owner, 05/31/2011
Source: NHTSA Complaints Database
Most Reported Vehicles for P0780
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | NISSAN MAXIMA | |
| 2 | HONDA ACCORD | |
| 3 | HONDA CR-V | |
| 4 | NISSAN TITAN | |
| 5 | KIA SORENTO |
P0780 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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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.