AutoCodesGMC – B2485 2017 GMC Sierra

B2485 2017 GMC Sierra Code - Wireless Communication Antenna Circuit

Quick Answer

Bluetooth® wireless technology is a short-range communications technology intended to replace the cables connecting portable and/or fixed devices while maintaining high levels of security. Common causes include Faulty Bluetooth® Wireless Communication Antenna, Bluetooth® Wireless Communication Antenna harness is open or shorted, Bluetooth® Wireless Communication Antenna 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
B2485 2017 GMC Sierra indicates Wireless Communication Antenna Circuit.
Common causes
Common causes include Faulty Bluetooth® Wireless Communication Antenna, Bluetooth® Wireless Communication Antenna harness is open or shorted, Bluetooth® Wireless Communication Antenna 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 238
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 24, 2023
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Code B2485 2017 GMC Sierra Description

Bluetooth® wireless technology is a short-range communications technology intended to replace the cables connecting portable and/or fixed devices while maintaining high levels of security. The operating range of the signal is approximately 30 feet. The Bluetooth® antenna is a small, fixed antenna connected directly to the telematics communication interface control module and is used to send and receive signals from a Bluetooth® enabled cellular phone. The Diagnostic Trouble Code (DTC) will be set if the signal voltage is less than 1 V or greater than 2 V for 500 ms.
OBDII Code B2485 2017 GMC Sierra - Wireless Communication Antenna Circuit - AutoCodes.com
B2485 2017 GMC Sierra Code - Wireless Communication Antenna Circuit

What are the Possible Causes of the DTC B2485 2017 GMC Sierra?

  • Faulty Bluetooth® Wireless Communication Antenna
  • Bluetooth® Wireless Communication Antenna harness is open or shorted
  • Bluetooth® Wireless Communication Antenna circuit poor electrical connection

How to Fix the DTC B2485 2017 GMC Sierra?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2485 2017 GMC Sierra 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.

Need more information about the B2485 2017 GMC Sierra code?

Need more information on how to fix the B2485 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B2485 2017 GMC Sierra Code

What does the OBDII code B2485 mean for a 2017 GMC Sierra?

Code B2485 indicates an issue with the Wireless Communication Antenna Circuit, which may affect features like Bluetooth, remote keyless entry, or cellular connectivity.

What are common symptoms of code B2485 in a 2017 GMC Sierra?

Symptoms may include malfunctioning Bluetooth, poor cellular signal, issues with OnStar functionality, or problems with remote keyless entry.

What causes the B2485 code in a 2017 GMC Sierra?

This code can be caused by a damaged antenna, loose or corroded wiring, a faulty antenna module, or software issues within the communication system.

Can a damaged antenna trigger code B2485?

Yes, a damaged or disconnected wireless communication antenna is a common cause of this code.

How can I diagnose the B2485 code in a 2017 GMC Sierra?

Start by inspecting the antenna, wiring, and connectors for damage or corrosion. Use a scan tool to verify the code and check for related codes.

Can code B2485 affect the vehicle’s remote keyless entry system?

Yes, since the wireless communication antenna is used for remote keyless entry, issues with the antenna circuit can cause problems with this feature.

Is code B2485 in a 2017 GMC Sierra related to Bluetooth issues?

Yes, a malfunctioning wireless communication antenna can disrupt Bluetooth connectivity and paired device functionality.

How do you fix code B2485 in a 2017 GMC Sierra?

Repairs may involve replacing the wireless antenna, repairing damaged wiring, cleaning corroded connectors, or updating the vehicle’s software.

Can a software update resolve code B2485?

In some cases, a software update to the communication module may fix the issue if the problem is software-related.

Should I consult a professional for the B2485 code on my 2017 GMC Sierra?

If basic inspections don’t resolve the issue, it’s recommended to consult a professional to avoid further damage to the communication system.

Discuss the causes and fixes for B2485 2017 GMC Sierra OBDII Code

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