AutoCodes – GMC – U0268 GMC

U0268 GMC 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 GMC 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 634

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

What does this mean?

What are the Possible Causes of the DTC U0268 GMC?

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 GMC?

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 GMC 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 U0268 GMC Code

1. What are the common symptoms of OBDII code U0268 GMC?

The common symptoms of OBDII code U0268 GMC, which indicates a lost communication with the right front short range radar sensor module, include issues with the vehicle's blind spot monitoring system, lane departure warning system, and/or forward collision alert system.

2. What are the possible causes of OBDII code U0268 GMC?

Possible causes of OBDII code U0268 GMC include a faulty right front short range radar sensor module, damaged wiring or connectors in the radar sensor system, software issues, or a communication network problem within the vehicle.

3. How can I diagnose the issue related to OBDII code U0268 GMC?

Diagnosing the issue related to OBDII code U0268 GMC typically involves using a diagnostic scan tool to retrieve the specific fault codes, checking the wiring and connections related to the right front short range radar sensor module, and performing a visual inspection of the sensor module for any physical damage.

4. Can I still drive my vehicle with OBDII code U0268 GMC present?

It is usually safe to drive your vehicle with OBDII code U0268 GMC present, but it is recommended to have the issue diagnosed and repaired as soon as possible to ensure the proper functioning of your vehicle's safety systems.

5. How can I repair OBDII code U0268 GMC?

Repairing OBDII code U0268 GMC may involve replacing the right front short range radar sensor module if it is found to be faulty, repairing any damaged wiring or connectors, updating the software related to the radar sensor system, or addressing any communication network issues within the vehicle.

6. Is it possible to reset OBDII code U0268 GMC without repairs?

Resetting OBDII code U0268 GMC without addressing the underlying issue may temporarily clear the code, but it is likely to reappear if the root cause of the communication error with the right front short range radar sensor module is not resolved.

7. Can extreme weather conditions cause OBDII code U0268 GMC to trigger?

Extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially affect the operation of the right front short range radar sensor module and lead to the triggering of OBDII code U0268 GMC due to communication disruptions.

8. How much does it typically cost to repair OBDII code U0268 GMC?

The cost to repair OBDII code U0268 GMC can vary depending on the specific cause of the communication error with the right front short range radar sensor module, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Will OBDII code U0268 GMC cause my vehicle to fail an emissions test?

OBDII code U0268 GMC is not directly related to emissions, so it should not cause your vehicle to fail an emissions test. However, it is still important to address the issue to ensure the proper functioning of your vehicle's safety systems.

10. How can I prevent OBDII code U0268 GMC from occurring in the future?

To prevent OBDII code U0268 GMC from occurring in the future, it is recommended to regularly inspect and maintain the radar sensor system, keep the connections and wiring in good condition, and address any issues promptly to avoid communication errors with the right front short range radar sensor module.