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P182A 2016 GMC Sierra Code - Internal Mode Switch 'A' Circuit Low Voltage

Quick Answer

The P182A code for a 2016 GMC Sierra indicates an issue with the Internal Mode Switch 'A' Circuit Low Voltage. Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors in the circuit, Malfunctioning Transmission Control Module. 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
P182A 2016 GMC Sierra indicates Internal Mode Switch 'A' Circuit Low Voltage.
Common causes
Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors in the circuit, Malfunctioning Transmission Control Module.
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 11, 2024
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Code P182A 2016 GMC Sierra Description

The P182A code for a 2016 GMC Sierra indicates an issue with the Internal Mode Switch 'A' Circuit Low Voltage. This code is related to the transmission control system of the vehicle. The Internal Mode Switch (IMS) is responsible for providing feedback to the transmission control module (TCM) about the position of the gear selector. In this case, the low voltage in the circuit indicates a potential electrical problem that is causing a discrepancy in the signal being sent to the TCM.

OBDII Code P182A 2016 GMC Sierra - Internal Mode Switch 'A' Circuit Low Voltage
P182A 2016 GMC Sierra Code - Internal Mode Switch 'A' Circuit Low Voltage

Common Causes of P182A 2016 GMC Sierra

  1. Faulty Internal Mode Switch.
  2. Damaged wiring or connectors in the circuit.
  3. Malfunctioning Transmission Control Module.
  4. Low voltage supply to the circuit.
  5. Corrosion or moisture in the electrical connections.

Symptoms of P182A 2016 GMC Sierra

  1. Erratic shifting or difficulty changing gears.
  2. Transmission slipping or hesitation.
  3. Check Engine Light illuminated on the dashboard.
  4. Reduced fuel efficiency.
  5. Vehicle stuck in one gear.

How to Fix P182A 2016 GMC Sierra

  1. Diagnose the issue using a scan tool to retrieve the fault codes and perform a visual inspection of the wiring and connectors.
  2. Test the voltage supply to the Internal Mode Switch and ensure it is within the manufacturer's specifications.
  3. Replace the Internal Mode Switch if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the circuit.
  5. Clear the fault codes and perform a test drive to confirm that the issue has been resolved.

Cost to Fix P182A 2016 GMC Sierra

The typical repair costs for addressing the Internal Mode Switch 'A' Circuit Low Voltage code can vary depending on the exact cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing the Internal Mode Switch itself can range from $150 to $300, while the labor costs can add another $100 to $200. Overall, the total repair cost for this issue could be between $250 and $500. It's important to note that these are rough estimates, and actual costs may vary based on the specific circumstances of the vehicle and the repair shop's rates.

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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 P182A 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P182A in a 2016 GMC Sierra?

The common symptoms of OBDII code P182A, Internal Mode Switch 'A' Circuit Low Voltage, in a 2016 GMC Sierra may include issues with shifting gears, the transmission not engaging properly, and the vehicle going into "limp mode."

2. What are the potential causes of OBDII code P182A in a 2016 GMC Sierra?

The potential causes of OBDII code P182A in a 2016 GMC Sierra include a faulty internal mode switch, damaged wiring or connectors in the circuit, or a malfunctioning transmission control module (TCM).

3. How can I diagnose OBDII code P182A in my 2016 GMC Sierra?

Diagnosing OBDII code P182A in a 2016 GMC Sierra typically involves using a diagnostic scanner to retrieve the specific fault code, inspecting the internal mode switch and its circuit for any visible damage, and testing the TCM for proper functioning.

4. Can I still drive my 2016 GMC Sierra with OBDII code P182A present?

It is not recommended to drive your 2016 GMC Sierra with OBDII code P182A present, as it can lead to transmission issues and potential safety hazards. It is best to address the underlying problem promptly.

5. How can I repair OBDII code P182A in my 2016 GMC Sierra?

Repairing OBDII code P182A in a 2016 GMC Sierra may involve replacing the internal mode switch, repairing any damaged wiring or connectors, or reprogramming the TCM. It is advisable to consult a professional mechanic for accurate diagnosis and repair.

6. Is OBDII code P182A a serious issue in a 2016 GMC Sierra?

OBDII code P182A can be a serious issue in a 2016 GMC Sierra as it affects the proper functioning of the transmission. Ignoring this code can lead to further damage and costly repairs down the line.

7. Can a DIY enthusiast fix OBDII code P182A in a 2016 GMC Sierra?

While some DIY enthusiasts may be able to address OBDII code P182A by replacing the internal mode switch or checking for wiring issues, it is recommended to seek professional help for accurate diagnosis and repair to ensure the problem is resolved effectively.

8. How much does it cost to repair OBDII code P182A in a 2016 GMC Sierra?

The cost to repair OBDII code P182A in a 2016 GMC Sierra can vary depending on the underlying cause, parts needed for replacement, and labor costs. It is advisable to obtain quotes from different mechanics or service centers for an accurate estimate.

9. Will resetting the OBDII system clear code P182A in a 2016 GMC Sierra?

Resetting the OBDII system may temporarily clear the code P182A in a 2016 GMC Sierra, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.

10. How often does OBDII code P182A occur in a 2016 GMC Sierra?

OBDII code P182A, Internal Mode Switch 'A' Circuit Low Voltage, can occur in a 2016 GMC Sierra due to various factors such as wear and tear, electrical issues, or component failure. The frequency may vary depending on the vehicle's usage and maintenance history.

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