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C0381 2017 GMC Sierra Code - Range Actuator System Performance High Temperature

Quick Answer

The C0381 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Range Actuator System Performance being at a high temperature. Common causes include Low transmission fluid levels, Faulty temperature sensor in the Range Actuator System, Clogged transmission fluid filter. 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
C0381 2017 GMC Sierra indicates Range Actuator System Performance High Temperature.
Common causes
Common causes include Low transmission fluid levels, Faulty temperature sensor in the Range Actuator System, Clogged transmission fluid filter.
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 16, 2024
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Code C0381 2017 GMC Sierra Description

The C0381 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Range Actuator System Performance being at a high temperature. This code is typically related to the transmission system of the vehicle. The Range Actuator System is responsible for controlling the gear selection in the transmission, ensuring that the vehicle shifts smoothly and efficiently. When the system detects that the temperature is too high, it can lead to performance issues and potential long-term damage if not addressed promptly.

OBDII Code C0381 2017 GMC Sierra - Range Actuator System Performance High Temperature
C0381 2017 GMC Sierra Code - Range Actuator System Performance High Temperature

Common Causes of C0381 2017 GMC Sierra

  1. Low transmission fluid levels
  2. Faulty temperature sensor in the Range Actuator System
  3. Clogged transmission fluid filter
  4. Overheating of the engine leading to increased temperatures in the transmission
  5. Electrical issues within the transmission control module

Symptoms of C0381 2017 GMC Sierra

  1. Rough shifting between gears
  2. Delayed or hesitant acceleration
  3. Transmission slipping
  4. Illumination of the Check Engine Light
  5. Overheating of the transmission fluid

How to Fix C0381 2017 GMC Sierra

  1. Begin by checking the transmission fluid level and condition. Top off or replace the fluid if necessary.
  2. Inspect the temperature sensor in the Range Actuator System and replace if faulty.
  3. Check and replace the transmission fluid filter if clogged.
  4. Address any overheating issues in the engine that may be affecting the transmission temperature.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C0381 2017 GMC Sierra

The cost of repairing a Range Actuator System Performance High Temperature issue can vary depending on the specific cause of the problem. On average, the repair costs for this type of issue can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Additional diagnostic time may also be required to pinpoint the exact cause of the high temperature issue. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model.

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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 C0381 2017 GMC Sierra Code

1. What does OBDII code C0381 mean on a 2017 GMC Sierra?

C0381 indicates a problem with the range actuator system, specifically related to performance issues caused by high temperature.

2. What are the common symptoms of code C0381 in a 2017 GMC Sierra?

Symptoms may include the "Service 4WD" message on the dashboard, difficulty shifting between drive modes, or the vehicle being stuck in a specific range or drive mode.

3. What causes the C0381 code to appear on a GMC Sierra?

Common causes include overheating of the transfer case range actuator, wiring or connector issues, a faulty actuator motor, or software-related problems with the transfer case control module.

4. Can I continue driving with code C0381 active?

While the vehicle may still be drivable, operating it with this code active can lead to further damage to the transfer case or drivetrain. It’s best to address the issue promptly.

5. How do I diagnose the C0381 code on my 2017 GMC Sierra?

Diagnosis involves scanning for additional codes, inspecting the range actuator and its wiring, checking the transfer case fluid level and condition, and testing the actuator motor for proper operation.

6. How can high temperatures cause the C0381 code?

High temperatures can affect the range actuator’s performance, potentially leading to internal component failure, electrical issues, or reduced efficiency in the transfer case system.

7. What is the range actuator in a GMC Sierra?

The range actuator is an electronic component that helps shift the transfer case between drive modes, such as 2WD, 4WD, or low-range modes.

8. What repairs are typically needed to fix code C0381?

Repairs may include replacing the range actuator, repairing damaged wiring or connectors, updating the transfer case control module software, or servicing the transfer case.

9. How much does it cost to repair code C0381 on a 2017 GMC Sierra?

The cost can vary but typically ranges from $300 to $800, depending on whether the range actuator needs replacement or if additional repairs are required.

10. Can a software update fix code C0381 on a GMC Sierra?

In some cases, a software update for the transfer case control module can resolve the issue, particularly if it’s caused by a programming glitch.

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