AutoCodes – Buick – U0257 Buick

U0257 Buick Code - Lost Communication With Info Display Module/Infotainment Faceplate Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Info Display Module/Infotainment Faceplate Control Module, Info Display Module/Infotainment Faceplate Control Module harness is open or shorted, Info Display Module/Infotainment Faceplate Control Module 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: U0257 Buick indicates Lost Communication With Info Display Module/Infotainment Faceplate Control Module.
Common causes: Common causes include Faulty Info Display Module/Infotainment Faceplate Control Module, Info Display Module/Infotainment Faceplate Control Module harness is open or shorted, Info Display Module/Infotainment Faceplate Control Module 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 1,667

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 Apr 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0257 Buick Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Info Display Module/Infotainment Faceplate Control Module has not been received.

OBDII Code U0257 Buick - Lost Communication With Info Display Module/Infotainment Faceplate Control Module - AutoCodes.com — U0257 Buick Code - Lost Communication With Info Display Module/Infotainment Faceplate Control Module

What does this mean?

What are the Possible Causes of the DTC U0257 Buick?

Faulty Info Display Module/Infotainment Faceplate Control Module
Info Display Module/Infotainment Faceplate Control Module harness is open or shorted
Info Display Module/Infotainment Faceplate Control Module circuit poor electrical connection

How to Fix the DTC U0257 Buick?

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 U0257 Buick 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 U0257 Buick Code

1. What are common symptoms of the U0257 OBDII code in a Buick?

- Common symptoms include a loss of functionality in the infotainment system, blank display screens, unresponsive touch controls, and possible issues with the vehicle's audio system.

2. What can cause the U0257 OBDII code to appear in a Buick?

- The U0257 code typically indicates a communication error between the vehicle's main computer system and the info display module or infotainment faceplate control module. This can be caused by damaged wiring, loose connections, or a faulty module.

3. How can I diagnose the U0257 code in my Buick?

- Diagnosing the U0257 code usually involves using a diagnostic scanner to retrieve the trouble codes, checking the wiring connections to the info display module and infotainment control module, and testing the modules themselves for proper functionality.

4. What are some repair tips for fixing the U0257 OBDII code in a Buick?

- Repair tips may include checking and repairing any damaged wiring, ensuring all connections are secure, resetting the infotainment system, updating software if applicable, and replacing any faulty modules if necessary.

5. Can I still drive my Buick with the U0257 code present?

- While it may be possible to drive the vehicle with the U0257 code, it is not recommended as the infotainment system plays an important role in providing information and entertainment features. It is best to address the issue promptly to avoid any further complications.

6. Is the U0257 OBDII code specific to Buick vehicles only?

- The U0257 code is not specific to Buick vehicles and can appear in other makes and models as well. However, the specific module or system affected may vary depending on the vehicle manufacturer.

7. How much does it typically cost to repair the U0257 OBDII code in a Buick?

- The cost of repairing the U0257 code can vary depending on the underlying cause of the issue. Costs may include labor charges for diagnostics and repairs, as well as the price of any replacement parts needed.

8. Are there any preventive measures to avoid the U0257 OBDII code in a Buick?

- To help prevent the U0257 code from appearing, it is recommended to regularly check the condition of wiring and connections related to the infotainment system, and to address any issues promptly to avoid further complications.

9. Can a DIY enthusiast fix the U0257 OBDII code in a Buick?

- While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing the U0257 code may require specialized tools and expertise. It is recommended to seek professional help for proper diagnosis and repair.

10. How long does it take to repair the U0257 OBDII code in a Buick?

- The time required to repair the U0257 code can vary depending on the complexity of the issue and the availability of replacement parts. Simple fixes like checking connections may take less time, while replacing a faulty module could take longer.