AutoCodes – Chevrolet – U0265 Chevrolet

U0265 Chevrolet Code - Lost Communication With Left 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 Left Front Short Range Radar Sensor Module, Left Front Short Range Radar Sensor Module harness is open or shorted, Left 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: U0265 Chevrolet indicates Lost Communication With Left Front Short Range Radar Sensor Module.
Common causes: Common causes include Faulty Left Front Short Range Radar Sensor Module, Left Front Short Range Radar Sensor Module harness is open or shorted, Left 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 3,903

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 U0265 Chevrolet 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 Left Front Short Range Radar Sensor Module has not been received.

OBDII Code U0265 Chevrolet - Lost Communication With Left Front Short Range Radar Sensor Module - AutoCodes.com — U0265 Chevrolet Code - Lost Communication With Left Front Short Range Radar Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0265 Chevrolet?

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

How to Fix the DTC U0265 Chevrolet?

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 U0265 Chevrolet 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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Need more information on how to fix the U0265 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 U0265 Chevrolet Code

1. What does the OBDII code U0265 mean on a Chevrolet?

The U0265 code indicates a loss of communication with the left front short-range radar sensor module, which is part of the advanced driver-assistance system (ADAS).

2. What are the symptoms of the U0265 code in a Chevrolet?

Symptoms may include a malfunctioning adaptive cruise control, forward collision warning system errors, or a warning light on the dashboard.

3. What causes the U0265 code to appear in a Chevrolet?

Common causes include a faulty radar sensor module, damaged wiring or connectors, a blown fuse, or a software malfunction in the control module.

4. Can I still drive my Chevrolet with the U0265 code?

Yes, you can drive the vehicle, but features like adaptive cruise control and collision avoidance may not function properly, potentially increasing safety risks.

5. How can I diagnose the U0265 code on my Chevrolet?

Start by inspecting the wiring and connectors to the left front radar module for damage or corrosion, and check fuses associated with the ADAS system.

6. How do I fix the U0265 code in my Chevrolet?

Repairs may include replacing a damaged radar sensor module, repairing or replacing wiring/connectors, or updating/reprogramming the control module.

7. How much does it cost to fix the U0265 code on a Chevrolet?

Repair costs can range from $100 to $1,000 depending on whether itâ€™s a simple wiring repair or a full radar sensor module replacement.

8. Can a software issue cause the U0265 code in a Chevrolet?

Yes, outdated or corrupted software in the control module may lead to communication errors with the radar sensor.

9. Does the U0265 code require professional repair?

While basic inspections can be done by a vehicle owner, diagnosing and repairing radar sensor or module issues typically requires professional tools and expertise.

10. Can weather conditions cause the U0265 code in a Chevrolet?

Extreme weather, such as heavy rain or snow, can occasionally interfere with the radar sensor's performance, but persistent issues likely indicate a hardware or wiring problem.