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Engine-Codes – GMC – B3596 2014 GMC Sierra

B3596 2014 GMC Sierra Code - Hazard Lamps Request Circuit Malfunction

Quick Answer

The B3596 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to a Hazard Lamps Request Circuit Malfunction. Common causes include Faulty hazard lamp switch, Wiring issues such as a short circuit or open circuit in the hazard lamps circuit, Faulty hazard lamp 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
B3596 2014 GMC Sierra indicates Hazard Lamps Request Circuit Malfunction.
Common causes
Common causes include Faulty hazard lamp switch, Wiring issues such as a short circuit or open circuit in the hazard lamps circuit, Faulty hazard lamp 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 Aug 18, 2024
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Code B3596 2014 GMC Sierra Description

The B3596 diagnostic trouble code (DTC) for a 2014 GMC Sierra refers to a Hazard Lamps Request Circuit Malfunction. This code indicates that there is an issue with the circuit that controls the activation of the hazard lamps on the vehicle. The hazard lamps, also known as the emergency flashers, are vital for warning other drivers of potential hazards or emergencies on the road. When this circuit malfunctions, it can impact the vehicle's safety by hindering the proper operation of the hazard lamps.

OBDII Code B3596 2014 GMC Sierra - Hazard Lamps Request Circuit Malfunction
B3596 2014 GMC Sierra Code - Hazard Lamps Request Circuit Malfunction

Common Causes of B3596 2014 GMC Sierra

  1. Faulty hazard lamp switch.
  2. Wiring issues such as a short circuit or open circuit in the hazard lamps circuit.
  3. Faulty hazard lamp control module.
  4. Blown fuse related to the hazard lamps circuit.
  5. Corrosion or damage to the connectors in the hazard lamps circuit.

Symptoms of B3596 2014 GMC Sierra

  1. Hazard lamps not turning on when the switch is activated.
  2. Hazard lamps flickering or flashing intermittently.
  3. Hazard lamps staying on continuously without being turned off.
  4. Dashboard warning light indicating a fault with the hazard lamps system.

How to Fix B3596 2014 GMC Sierra

  1. Begin by diagnosing the issue using a diagnostic scanner to retrieve the specific trouble code and pinpoint the exact cause of the malfunction.
  2. Inspect the hazard lamp switch to ensure it is functioning properly, replace if necessary.
  3. Check the wiring in the hazard lamps circuit for any damage or corrosion, repair or replace as needed.
  4. Inspect the hazard lamp control module for faults and replace if necessary.
  5. Test the hazard lamps system after repairs have been made to ensure proper functionality.

Cost to Fix B3596 2014 GMC Sierra

The cost of repairing a Hazard Lamps Request Circuit Malfunction can vary depending on the specific cause of the issue. In general, the cost can range from $100 to $300 for parts and labor. However, it is important to note that labor rates at auto repair shops can vary widely, so it is advisable to check with local shops for more accurate pricing information. Additionally, if the issue requires more extensive repairs or replacement of major components, the cost may be higher.

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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 B3596 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B3596 in a 2014 GMC Sierra?

The common symptoms include non-functioning hazard lamps or erratic behavior of the hazard light system.

2. What can cause the Hazard Lamps Request Circuit Malfunction in a 2014 GMC Sierra?

Potential causes of this issue can range from a faulty hazard lamp switch to a malfunctioning body control module.

3. How can I diagnose the Hazard Lamps Request Circuit Malfunction in my 2014 GMC Sierra?

You can diagnose this issue by checking the wiring connections, inspecting the hazard lamp switch, and using an OBDII scanner to read the trouble code.

4. Can I still drive my 2014 GMC Sierra with OBDII code B3596?

While the vehicle may still be operational, it is recommended to address the issue promptly to ensure the hazard lamps function correctly for safety reasons.

5. What are the repair options for fixing the Hazard Lamps Request Circuit Malfunction in a 2014 GMC Sierra?

Repair options include replacing the hazard lamp switch, repairing any damaged wiring, or reprogramming the body control module if necessary.

6. Are there any DIY tips for troubleshooting OBDII code B3596 in a 2014 GMC Sierra?

You can start by checking the fuse related to the hazard lamps, inspecting the hazard lamp switch for any visible damage, and ensuring all connections are secure.

7. How critical is it to address the Hazard Lamps Request Circuit Malfunction in a 2014 GMC Sierra?

While it may not affect the drivability of the vehicle, addressing this issue is important for the proper functioning of the hazard light system, which is crucial for safety on the road.

8. Can extreme weather conditions impact the occurrence of OBDII code B3596 in a 2014 GMC Sierra?

Extreme weather conditions, such as moisture or temperature fluctuations, can potentially exacerbate issues with the hazard lamp circuit, leading to the malfunction.

9. Is resetting the OBDII code B3596 in a 2014 GMC Sierra a temporary solution?

Resetting the code without addressing the root cause may temporarily clear the error code, but it is not a permanent solution and the issue may recur.

10. How much does it typically cost to repair the Hazard Lamps Request Circuit Malfunction in a 2014 GMC Sierra?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred dollars for parts and labor to over a thousand for more extensive repairs involving the body control module.

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