Acura Error Code P0780: How to Fix It

Hard 2-4 hours High Severity Verified June 2026
Error Code
P0780
Brand
Acura
Product Type
automotive
Severity
High
DIY Difficulty
Hard
Estimated Fix Time
2-4 hours
Error code P0780 in your Acura indicates a shift malfunction, meaning the transmission is not shifting properly between gears. This can cause rough shifting, delayed engagement, or complete transmission failure if not addressed promptly.
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Tools You'll Need

How to Fix Error Code P0780

  1. Check Transmission Fluid

    Engine must be running and transmission warm for accurate reading. Use caution around moving parts.
  2. Scan for Additional Codes

  3. Inspect Wiring and Connectors

    Disconnect battery negative terminal before handling electrical connections.
  4. Test Transmission Control Solenoids

    Ensure vehicle is properly supported if accessing solenoids from underneath.
  5. Check Transmission Control Module

    Do not attempt TCM removal without proper ESD protection and service procedures.
  6. Perform Transmission Adaptation Reset

    This procedure requires specific Honda/Acura diagnostic software and should be performed by qualified technician.

Parts You May Need

Transmission fluid
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Transmission filter
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Transmission control module
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Wiring harness connector
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Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission control module
Check Price on Amazon
Wiring harness connector
Check Price on Amazon
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When to Call a Professional

Call a qualified transmission specialist if fluid and basic electrical checks don't resolve the issue, if multiple transmission codes are present, or if you lack access to Honda/Acura diagnostic software. Internal transmission problems require specialized tools and expertise.

Frequently Asked Questions

What causes Acura P0780 error code?
P0780 is typically caused by low or contaminated transmission fluid, faulty shift solenoids, damaged wiring, or internal transmission wear. It can also result from a malfunctioning transmission control module.
Can I drive my Acura with P0780 code?
Driving with P0780 is not recommended as it indicates serious transmission problems. Continued driving may cause complete transmission failure and expensive repairs. Seek immediate professional diagnosis.
How much does it cost to fix P0780 in an Acura?
Repair costs vary from $150-300 for fluid service and solenoid replacement to $2000-4000 for major internal transmission repairs or rebuild. Diagnosis typically costs $100-150.
Is P0780 covered under Acura warranty?
P0780 may be covered under powertrain warranty if the vehicle is within warranty period and the issue is due to manufacturing defects. Check with your Acura dealer for specific coverage details.
How can I prevent P0780 code from returning?
Prevent P0780 by maintaining regular transmission fluid changes every 30,000 miles, avoiding aggressive driving habits, and addressing transmission warning signs early before they become major problems.