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Engine-Codes – GMC – P0980 2018 GMC Sierra

P0980 2018 GMC Sierra Code - Shift Solenoid Valve 3 Control Circuit High Voltage

Quick Answer

The P0980 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Shift Solenoid Valve 3 Control Circuit High Voltage. Common causes include Damaged wiring in the shift solenoid circuit, Faulty shift solenoid valve, Malfunctioning transmission control module (TCM). 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
P0980 2018 GMC Sierra indicates Shift Solenoid Valve 3 Control Circuit High Voltage.
Common causes
Common causes include Damaged wiring in the shift solenoid circuit, Faulty shift solenoid valve, Malfunctioning transmission control module (TCM).
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 Sep 17, 2024
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Code P0980 2018 GMC Sierra Description

The P0980 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Shift Solenoid Valve 3 Control Circuit High Voltage. This code is specifically related to the transmission system of the vehicle. The shift solenoid valve is responsible for controlling the flow of transmission fluid to engage or disengage specific gears within the transmission. In this case, the high voltage in the control circuit of Shift Solenoid Valve 3 suggests an electrical issue that is preventing the proper operation of the solenoid.

OBDII Code P0980 2018 GMC Sierra - Shift Solenoid Valve 3 Control Circuit High Voltage
P0980 2018 GMC Sierra Code - Shift Solenoid Valve 3 Control Circuit High Voltage

Common Causes of P0980 2018 GMC Sierra

  1. Damaged wiring in the shift solenoid circuit
  2. Faulty shift solenoid valve
  3. Malfunctioning transmission control module (TCM)
  4. Poor connection within the circuit
  5. Electrical issues such as corrosion or short circuits

Symptoms of P0980 2018 GMC Sierra

  1. Harsh or delayed shifting
  2. Erratic shifting patterns
  3. Failure to shift gears
  4. Reduced fuel efficiency
  5. Poor acceleration

How to Fix P0980 2018 GMC Sierra

  1. Begin by conducting a thorough inspection of the shift solenoid valve 3 and its wiring harness to check for any visible damage or loose connections.
  2. Test the shift solenoid valve using a multimeter to determine if it is functioning properly.
  3. Check the transmission control module (TCM) for any signs of malfunction and perform diagnostic tests to identify any faults.
  4. Repair or replace any damaged wiring, faulty shift solenoid valve, or malfunctioning TCM as needed.
  5. Clear the DTC from the vehicle's memory using a scan tool and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0980 2018 GMC Sierra

The typical repair costs for addressing a P0980 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts such as a new shift solenoid valve or wiring harness can range from $100 to $300, while labor costs can add an additional $150 to $300. Overall, the total repair cost for this issue may fall within the range of $250 to $600. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the rates of the auto repair shop. It's recommended to obtain quotes from local shops to get a more accurate estimate for the repair.

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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 P0980 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P0980 in a 2018 GMC Sierra?

When experiencing Shift Solenoid Valve 3 Control Circuit High Voltage (P0980) in a 2018 GMC Sierra, common symptoms may include harsh shifting, gear slippage, and difficulty changing gears.

2. What could cause the Shift Solenoid Valve 3 Control Circuit High Voltage code in a 2018 GMC Sierra?

Potential causes of the P0980 code in a 2018 GMC Sierra include a faulty shift solenoid valve, damaged wiring or connectors in the circuit, low transmission fluid, or a malfunctioning transmission control module (TCM).

3. How can I diagnose the Shift Solenoid Valve 3 Control Circuit High Voltage issue in my 2018 GMC Sierra?

Diagnosing the P0980 code involves using an OBDII scanner to retrieve the code, inspecting the shift solenoid valve and its circuit for damage, checking transmission fluid levels, and ensuring proper TCM operation.

4. Is it safe to continue driving my 2018 GMC Sierra with OBDII code P0980?

It is not recommended to drive your 2018 GMC Sierra with the P0980 code as it can lead to further damage to the transmission system. It's best to address the issue promptly to prevent potential costly repairs.

5. Can I repair the Shift Solenoid Valve 3 Control Circuit High Voltage problem in my 2018 GMC Sierra myself?

While some DIY enthusiasts may attempt to address the P0980 code, it is recommended to consult a professional mechanic with experience in diagnosing and repairing transmission issues to ensure the problem is resolved correctly.

6. How much does it typically cost to repair OBDII code P0980 in a 2018 GMC Sierra?

The cost of repairing the Shift Solenoid Valve 3 Control Circuit High Voltage code can vary depending on the underlying cause. It may range from a simple fix like replacing a solenoid valve to more extensive repairs if there are additional transmission issues.

7. Can resetting the OBDII code P0980 in my 2018 GMC Sierra make it go away permanently?

Simply resetting the P0980 code without addressing the root cause will not make it disappear permanently. The issue triggering the code needs to be identified and fixed to prevent the code from reoccurring.

8. How long does it typically take to repair the Shift Solenoid Valve 3 Control Circuit High Voltage issue in a 2018 GMC Sierra?

The repair time for the P0980 code can vary depending on the exact cause and the complexity of the repair. It could range from a quick fix to a more involved repair requiring more time.

9. Will fixing OBDII code P0980 improve the performance of my 2018 GMC Sierra's transmission?

Addressing the Shift Solenoid Valve 3 Control Circuit High Voltage issue should help improve the performance of your 2018 GMC Sierra's transmission, resolving symptoms like harsh shifting and gear slippage.

10. Are there any preventive measures to avoid encountering OBDII code P0980 in a 2018 GMC Sierra?

Regular maintenance of your 2018 GMC Sierra, including checking transmission fluid levels, inspecting wiring connections, and promptly addressing any transmission issues, can help prevent the occurrence of the P0980 code.

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