AutoCodes – Buick – U0499 Buick

U0499 Buick Code - Invalid Data Received From Telematic Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Telematic Control Module, Telematic Control Module harness is open or shorted, Telematic 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: U0499 Buick indicates Invalid Data Received From Telematic Control Module.
Common causes: Common causes include Faulty Telematic Control Module, Telematic Control Module harness is open or shorted, Telematic 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 488

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 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0499 Buick Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Telematic Control Module causing its integrity to be questioned.

OBDII Code U0499 Buick - Invalid Data Received From Telematic Control Module - AutoCodes.com — U0499 Buick Code - Invalid Data Received From Telematic Control Module

What does this mean?

What are the Possible Causes of the DTC U0499 Buick?

Faulty Telematic Control Module
Telematic Control Module harness is open or shorted
Telematic Control Module circuit poor electrical connection

How to Fix the DTC U0499 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 U0499 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 U0499 Buick Code

1. What does the OBDII code U0499 mean on a Buick?

U0499 indicates "Invalid Data Received From Telematic Control Module," meaning the vehicle's communication system has detected corrupted or incorrect data from the telematics module.

2. What are the common symptoms of the U0499 code in a Buick?

Symptoms may include the check engine light or other warning lights, issues with OnStar or telematics services, and potentially reduced functionality of infotainment or navigation systems.

3. What causes the U0499 code to appear in a Buick?

Common causes include software glitches in the telematics module, faulty wiring or connections, a malfunctioning telematics control module, or communication errors between modules.

4. Can I continue driving my Buick with the U0499 code?

While the U0499 code may not immediately affect drivability, it can compromise telematics functions and should be addressed to ensure proper functionality of connected systems.

5. How do I diagnose the U0499 code on a Buick?

Start by using an OBDII scanner to confirm the code and check for other related codes. Inspect the telematics module, wiring, and connectors for damage or loose connections, and ensure the software is up to date.

6. How can I fix the U0499 code on my Buick?

Repairs may include updating the telematics module software, repairing or replacing damaged wiring or connectors, or replacing the telematics control module if it is defective.

7. Is a U0499 code specific to Buicks with OnStar?

Yes, Buicks equipped with OnStar or similar telematics systems are more likely to experience this code, as it relates to the telematics control module.

8. Can a weak battery cause the U0499 code on a Buick?

Yes, a weak or failing battery can cause communication errors between modules, potentially triggering the U0499 code.

9. How much does it cost to repair the U0499 code on a Buick?

Repair costs vary based on the issue. Software updates may cost $100-$200, while replacing the telematics module could cost $500-$1,000 or more, depending on labor and parts.

10. Do I need a professional to fix the U0499 code on my Buick?

While basic diagnostics like checking wiring can be done at home, resolving module or software issues often requires specialized tools and expertise, so consulting a professional is recommended.