Engine-Codes.com
Engine-Codes – GMC – P0776 2017 GMC Sierra

P0776 2017 GMC Sierra Code - Clutch Pressure Control Solenoid 2 Stuck Off

Quick Answer

The P0776 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Clutch Pressure Control Solenoid 2 being stuck off. Common causes include Faulty clutch pressure control solenoid, Wiring or electrical issues, Low transmission fluid levels. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0776 2017 GMC Sierra indicates Clutch Pressure Control Solenoid 2 Stuck Off.
Common causes
Common causes include Faulty clutch pressure control solenoid, Wiring or electrical issues, Low transmission fluid levels.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0776 2017 GMC Sierra Description

The P0776 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Clutch Pressure Control Solenoid 2 being stuck off. This solenoid is responsible for regulating the hydraulic pressure in the transmission's clutch pack, which is crucial for smooth shifting and overall transmission performance. When the solenoid is stuck off, it means that it is not functioning properly, leading to potential transmission problems.

OBDII Code P0776 2017 GMC Sierra - Clutch Pressure Control Solenoid 2 Stuck Off
P0776 2017 GMC Sierra Code - Clutch Pressure Control Solenoid 2 Stuck Off

Common Causes of P0776 2017 GMC Sierra

  1. Faulty clutch pressure control solenoid
  2. Wiring or electrical issues
  3. Low transmission fluid levels
  4. Internal transmission problems
  5. Software or calibration issues

Symptoms of P0776 2017 GMC Sierra

  1. Harsh or delayed shifting
  2. Slipping gears
  3. Transmission overheating
  4. Reduced fuel efficiency
  5. Illumination of the check engine light

How to Fix P0776 2017 GMC Sierra

  1. Diagnose the issue by using a scan tool to confirm the P0776 code and inspecting the solenoid and related components.
  2. Check the transmission fluid level and condition to ensure it is at the proper level and not contaminated.
  3. Test the wiring and electrical connections to the clutch pressure control solenoid for any faults or damage.
  4. Replace the clutch pressure control solenoid if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0776 2017 GMC Sierra

The typical repair costs for addressing a P0776 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing a clutch pressure control solenoid can range from $150 to $300, including parts and labor. However, additional costs may apply if there are other underlying issues that need to be addressed. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on the specific circumstances of the vehicle.

What does this mean?

Tech Notes for P0776 2017 GMC Sierra

When a transmission solenoid has malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure, and that the transmission will need to be rebuilt or replaced.

Need more information about the P0776 2017 GMC Sierra code?

Need more information on how to fix the P0776 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0776 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0776 2017 GMC Sierra Code

1. What does the OBDII code P0776 mean on a 2017 GMC Sierra?

P0776 indicates that the Powertrain Control Module (PCM) has detected an issue with Clutch Pressure Control Solenoid 2, specifically that it is stuck in the "off" position.

2. What are common symptoms of the P0776 code in a 2017 GMC Sierra?

Common symptoms include transmission slipping, harsh or delayed shifting, reduced fuel efficiency, and the vehicle entering limp mode. The check engine light may also be illuminated.

3. What causes the P0776 code in a 2017 GMC Sierra?

Possible causes include a faulty clutch pressure control solenoid, low or dirty transmission fluid, a clogged transmission fluid filter, internal transmission issues, or damaged wiring to the solenoid.

4. Can I drive my 2017 GMC Sierra with the P0776 code?

It’s not recommended, as driving with this code can cause further damage to the transmission. Address the issue as soon as possible to avoid costly repairs.

5. How do I diagnose the P0776 code on a 2017 GMC Sierra?

Diagnosis typically involves scanning for additional codes, inspecting the transmission fluid condition, checking the solenoid wiring and connectors, and testing the functionality of the clutch pressure control solenoid using a multimeter or specialized diagnostic tools.

6. How do I fix the P0776 code on a 2017 GMC Sierra?

Repairs may include replacing the clutch pressure control solenoid, flushing and replacing the transmission fluid, cleaning or replacing the transmission fluid filter, or repairing damaged wiring or connectors.

7. How much does it cost to repair the P0776 code on a 2017 GMC Sierra?

The repair cost can range from $150 to $400 for replacing the solenoid, while more extensive transmission repairs could exceed $1,000 depending on the extent of the damage.

8. Can low transmission fluid cause the P0776 code?

Yes, low or dirty transmission fluid can cause the solenoid to malfunction, leading to the P0776 code. Always check and maintain proper fluid levels.

9. How do I prevent the P0776 code from occurring again?

Regularly check and change the transmission fluid, replace the fluid filter as recommended, and address any transmission issues promptly to prevent solenoid damage.

10. Does the P0776 code always mean the solenoid is bad?

Not necessarily. The issue could also stem from wiring problems, transmission fluid issues, or internal transmission damage, so proper diagnosis is essential.

Discuss the causes and fixes for P0776 2017 GMC Sierra OBDII Code

Submit a New Comment

Code P0776 2017 GMC Sierra comments

No comments found for this page.