Engine-CodesBuick – U2167 Buick

U2167 Buick Code - Lost Communication With Remote Control Door Lock Receiver

Quick Answer

The U2167 Buick code indicates that there is a communication issue with the remote control door lock receiver in the vehicle. Common causes include Faulty remote control door lock receiver module, Wiring issues or loose connections, Malfunctioning key fob. 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
U2167 Buick indicates Lost Communication With Remote Control Door Lock Receiver.
Common causes
Common causes include Faulty remote control door lock receiver module, Wiring issues or loose connections, Malfunctioning key fob.
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 17, 2024
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Code U2167 Buick Description

The U2167 Buick code indicates that there is a communication issue with the remote control door lock receiver in the vehicle. This means that the module responsible for receiving signals from the key fob to lock and unlock the doors is not able to communicate properly with the rest of the vehicle's systems. This can lead to issues with the keyless entry system, making it difficult or impossible to lock or unlock the doors remotely.

OBDII Code U2167 Buick - Lost Communication With Remote Control Door Lock Receiver
U2167 Buick Code - Lost Communication With Remote Control Door Lock Receiver

Common Causes of U2167 Buick

  1. Faulty remote control door lock receiver module.
  2. Wiring issues or loose connections.
  3. Malfunctioning key fob.
  4. Communication error within the vehicle's network.
  5. Water damage or corrosion affecting the keyless entry system components.

Symptoms of U2167 Buick

  1. Inability to lock or unlock the doors using the key fob.
  2. Intermittent operation of the keyless entry system.
  3. Warning light on the dashboard related to the keyless entry system.
  4. Doors locking or unlocking on their own without input from the key fob.

How to Fix U2167 Buick

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific trouble code and perform further testing to identify the root cause.
  2. Inspect the remote control door lock receiver module and wiring for any visible damage or loose connections. Repair or replace as needed.
  3. Test the key fob to ensure it is functioning correctly. Replace the key fob if necessary.
  4. Check for any communication errors within the vehicle's network and address them accordingly.
  5. Clear the trouble code from the vehicle's computer and test the keyless entry system to ensure proper operation.

Cost to Fix U2167 Buick

The typical repair costs for addressing a U2167 Buick code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of replacing a remote control door lock receiver module can range from $200 to $400, including parts and labor. However, additional costs may apply if wiring repairs or key fob replacement are necessary.

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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 U2167 Buick Code

1. What does the OBDII code U2167 mean on a Buick?

U2167 indicates that the vehicle's control modules have lost communication with the Remote Control Door Lock Receiver (RCDLR), which is responsible for keyless entry and remote locking functions.

2. What are the common symptoms of the U2167 code on a Buick?

Symptoms may include the key fob not working, inability to lock/unlock doors remotely, issues with remote start, or a warning light on the dashboard.

3. What causes the U2167 code to appear on a Buick?

Common causes include a faulty Remote Control Door Lock Receiver (RCDLR), wiring issues, poor electrical connections, software glitches, or a failing control module.

4. Can a weak key fob battery cause the U2167 code?

A weak key fob battery is unlikely to trigger the U2167 code directly but may cause similar symptoms, such as keyless entry failure. Replacing the key fob battery is a good first step.

5. How is the U2167 code diagnosed on a Buick?

Technicians diagnose this code by scanning the vehicle with an OBDII tool, inspecting the RCDLR and related wiring, checking for power/ground continuity, and testing module communication.

6. Can I drive my Buick with the U2167 code?

Yes, the vehicle is typically safe to drive, but features like remote locking, remote start, or keyless entry may not work until the issue is resolved.

7. How do I fix the U2167 code on my Buick?

Repairs may include checking and repairing wiring or connections, replacing a faulty RCDLR, updating module software, or reprogramming the RCDLR.

8. Does the U2167 code require reprogramming the key fob?

Not necessarily. The issue is generally with the RCDLR or its communication, but reprogramming the key fob may be required if the system has been reset.

9. How much does it cost to fix the U2167 code on a Buick?

Repair costs vary but may range from $100 to $500, depending on whether wiring repairs, module replacement, or reprogramming is needed.

10. Can disconnecting the battery clear the U2167 code?

Disconnecting the battery may clear the code temporarily, but if the underlying issue isn’t fixed, the code is likely to return.

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