AutoCodes – Generic – U0268

U0268 Code - Lost Communication With Right Front Short Range Radar Sensor 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 Right Front Short Range Radar Sensor Module, Right Front Short Range Radar Sensor Module harness is open or shorted, Right Front Short Range Radar Sensor 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: U0268 indicates Lost Communication With Right Front Short Range Radar Sensor Module.
Common causes: Common causes include Faulty Right Front Short Range Radar Sensor Module, Right Front Short Range Radar Sensor Module harness is open or shorted, Right Front Short Range Radar Sensor 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 3,437

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 U0268 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 Right Front Short Range Radar Sensor Module has not been received.

OBDII Code U0268 - Lost Communication With Right Front Short Range Radar Sensor Module - AutoCodes.com — U0268 Code - Lost Communication With Right Front Short Range Radar Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0268?

Faulty Right Front Short Range Radar Sensor Module
Right Front Short Range Radar Sensor Module harness is open or shorted
Right Front Short Range Radar Sensor Module circuit poor electrical connection

How to Fix the DTC U0268?

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 U0268 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 U0268 code?

Need more information on how to fix the U0268 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0268 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U0268 Buick — Lost Communication With Right Front Short Range Radar Sensor Module
U0268 Cadillac — Lost Communication With Right Front Short Range Radar Sensor Module
U0268 Chevrolet — Lost Communication With Right Front Short Range Radar Sensor Module
U0268 GMC — Lost Communication With Right Front Short Range Radar Sensor Module

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 U0268 Code

1. What does the OBDII code U0268 mean?

U0268 indicates that the vehicle's communication system has lost contact with the right front short-range radar sensor module.

2. What are the common symptoms of the U0268 code?

Symptoms may include a malfunctioning adaptive cruise control, lane-keeping assist issues, or warning lights on the dashboard, such as the check engine light or advanced driver-assistance system (ADAS) alerts.

3. What causes the U0268 code to appear?

Common causes include wiring or connector issues, a failed right front radar sensor module, software glitches, or a problem with the vehicle's communication network.

4. How can I diagnose the U0268 code?

Start by checking the wiring and connectors near the right front radar sensor for damage or corrosion. Use a diagnostic scanner to confirm module communication and inspect relevant control modules for related faults.

5. Can a software update fix the U0268 code?

Yes, in some cases, a software update from the manufacturer may resolve communication issues if the problem is related to firmware bugs.

6. Is it safe to drive with the U0268 code active?

While the vehicle may still be drivable, safety features like adaptive cruise control or lane-keeping assist may not function properly, which could pose a risk in certain situations.

7. How much does it cost to fix the U0268 code?

Repair costs vary depending on the issue. Wiring repairs may cost $100-$300, while replacing the radar sensor module could range from $500-$1,500, including parts and labor.

8. Can a dead battery cause the U0268 code?

Yes, a low or dead battery can disrupt the communication network and trigger the U0268 code. Ensure the battery and charging system are functioning properly.

9. How do I reset the U0268 code?

After repairing the underlying issue, use an OBDII scanner to clear the code. If the problem persists, further diagnosis is needed.

10. What tools are needed to diagnose the U0268 code?

Youâ€™ll need an OBDII scanner with advanced diagnostic capabilities, a multimeter to test wiring and connectors, and possibly manufacturer-specific diagnostic software for deeper troubleshooting.