Engine-CodesGMC – P0513 2015 GMC Sierra

P0513 2015 GMC Sierra Code - Immobilizer Key Incorrect

Quick Answer

The P0513 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that there is an issue with the immobilizer key being incorrect. Common causes include Incorrectly programmed key, Damaged or faulty key fob, Faulty immobilizer system 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
P0513 2015 GMC Sierra indicates Immobilizer Key Incorrect.
Common causes
Common causes include Incorrectly programmed key, Damaged or faulty key fob, Faulty immobilizer system 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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P0513 2015 GMC Sierra Description

The P0513 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that there is an issue with the immobilizer key being incorrect. The immobilizer system is a security feature in modern vehicles that prevents the engine from starting unless the correct key is used. When the vehicle's computer detects that the key being used is not programmed or recognized, it triggers the P0513 code.

OBDII Code P0513 2015 GMC Sierra - Immobilizer Key Incorrect
P0513 2015 GMC Sierra Code - Immobilizer Key Incorrect

Common Causes of P0513 2015 GMC Sierra

  1. Incorrectly programmed key.
  2. Damaged or faulty key fob.
  3. Faulty immobilizer system module.
  4. Wiring issues between the key transponder and the immobilizer system.
  5. Low battery in the key fob.

Symptoms of P0513 2015 GMC Sierra

  1. Engine cranks but does not start.
  2. Security light on the dashboard stays illuminated.
  3. Key fob does not unlock or lock the doors.
  4. Engine starts and then immediately shuts off.
  5. Vehicle goes into "security" mode, preventing it from starting.

How to Fix P0513 2015 GMC Sierra

  1. Verify the issue by attempting to start the vehicle with a spare key or key fob.
  2. If the spare key works, the original key may need to be reprogrammed or replaced.
  3. Check the battery in the key fob and replace if necessary.
  4. Inspect the wiring between the key transponder and the immobilizer system for any damage or loose connections.
  5. If the issue persists, the immobilizer system module may need to be replaced.

Cost to Fix P0513 2015 GMC Sierra

The cost of repairing a P0513 code can vary depending on the specific cause of the issue. In general, reprogramming a key or replacing a key fob can cost anywhere from $50 to $200. If the immobilizer system module needs to be replaced, the cost can range from $200 to $600 or more. Labor costs at auto repair shops typically range from $80 to $150 per hour, so the total repair bill can add up quickly. It's recommended to get a detailed estimate from a qualified mechanic to determine the exact cost for your specific vehicle.

Tech Notes for P0513 2015 GMC Sierra

DTC P0513 may be caused by a loose connection or intermittent poor continuity on the ECM ground or at the negative battery cable. Be sure to check the ECM ground(s) and negative battery cable if the normal system diagnosis does not correct the concern.



There is a Factory Service Bulletin for the following Chevrolet models:

2010 Chevrolet Express

2011 Chevrolet Express

2011 Chevrolet Silverado

Chevrolet Factory Service Bulletin OBDII Code P0513

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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.

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