AutoCodes – GMC – B361B GMC

B361B GMC Code - Head-Up Display Switch

Quick Answer

The head-up display switch is a multiplexed switch that controls the head-up display based on driver inputs. Common causes include Faulty Head-Up Display Switch, Head-Up Display Switch harness is open or shorted, Head-Up Display Switch circuit poor electrical connection. 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: B361B GMC indicates Head-Up Display Switch.
Common causes: Common causes include Faulty Head-Up Display Switch, Head-Up Display Switch harness is open or shorted, Head-Up Display Switch circuit poor electrical connection.
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.

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Code Popularity 784

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 09, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B361B GMC Description

The head-up display switch is a multiplexed switch that controls the head-up display based on driver inputs. The head-up display provides the switch with a low reference and monitors a signal circuit. The head-up display switch is made up of a resistor ladder and three switches: Dim +/-, Up/Down, and Page. When a switch is pressed, the signal voltage is pulled low through the resistor ladder. When pressed, each of the switches will result in a different signal voltage seen by the head-up display, depending on the switch's location on the resistor ladder. The Diagnostic Trouble Code (DTC) sets if the head-up display no longer detects a malfunction.

OBDII Code B361B GMC - Head-Up Display Switch - AutoCodes.com — B361B GMC Code - Head-Up Display Switch

What does this mean?

What are the Possible Causes of the DTC B361B GMC?

Faulty Head-Up Display Switch
Head-Up Display Switch harness is open or shorted
Head-Up Display Switch circuit poor electrical connection

How to Fix the DTC B361B GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

B361B 02 Head-Up Display Switch Short to Ground
B361B 05 Head-Up Display Switch High Voltage/Open
B361B 59 Head-Up Display Switch Protection Time-Out

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B361B GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 B361B GMC Code

1. What does OBDII code B361B GMC indicate?

The code B361B GMC refers to a fault in the Head-Up Display switch.

2. What are common symptoms of a B361B GMC code?

Common symptoms include malfunctioning or inoperative Head-Up Display functions.

3. What can cause the B361B GMC code to trigger?

The B361B code is typically triggered by a problem in the Head-Up Display switch circuit.

4. How can I diagnose the cause of a B361B GMC code?

Diagnosing the B361B code involves inspecting the Head-Up Display switch for any visible damage or loose connections.

5. Can a DIYer repair a B361B GMC code?

Repairing a B361B code may require replacing the faulty Head-Up Display switch, which can be done by a knowledgeable DIYer with the right tools.

6. Are there any common mistakes to avoid when dealing with a B361B GMC code?

Avoid overlooking simple issues like loose wiring connections or blown fuses when troubleshooting a B361B GMC code.

7. Is it safe to continue driving with a B361B GMC code?

It is generally safe to drive with a B361B code, but it's recommended to address the issue promptly to ensure proper functioning of the Head-Up Display.

8. How much does it cost to repair a B361B GMC code at a dealership?

The cost of repairing a B361B GMC code at a dealership can vary depending on the specific diagnosis and labor rates.

9. Can a B361B GMC code be cleared/reset without fixing the underlying issue?

Clearing or resetting the B361B code without addressing the root cause will likely result in the code reappearing once the issue is detected again.

10. Is the B361B GMC code a common problem in GMC vehicles?

The B361B code may occur in GMC vehicles equipped with a Head-Up Display system, but it is not as common as other OBDII codes.

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