AutoCodes – GMC – U010E 2017 GMC Sierra

U010E 2017 GMC Sierra Code - Lost Communication With Reductant Sensor Module

Quick Answer

Devices connected to the Powertrain High-Speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant 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: U010E 2017 GMC Sierra indicates Lost Communication With Reductant Sensor Module.
Common causes: Common causes include Faulty Reductant Control Module, Reductant Control Module harness is open or shorted, Reductant 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 179

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 Oct 18, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U010E 2017 GMC Sierra Description

Devices connected to the Powertrain 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 devices. The devices 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 device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored DTC. The DTC will be set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U010E 2017 GMC Sierra - Lost Communication With Reductant Sensor Module - AutoCodes.com — U010E 2017 GMC Sierra Code - Lost Communication With Reductant Sensor Module

What does this mean?

What are the Possible Causes of the DTC U010E 2017 GMC Sierra?

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

How to Fix the DTC U010E 2017 GMC Sierra?

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 U010E 2017 GMC Sierra 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 U010E 2017 GMC Sierra 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 U010E 2017 GMC Sierra Code

1. What does the OBDII code U010E mean on a 2017 GMC Sierra?

U010E indicates a loss of communication between the vehicle's main control modules and the Reductant Sensor Module, which monitors the diesel exhaust fluid (DEF) system.

2. What are common symptoms of U010E on a 2017 GMC Sierra?

Symptoms may include the check engine light turning on, DEF warning messages, possible limp mode activation, or reduced engine performance.

3. What causes the U010E code to appear on a 2017 GMC Sierra?

Common causes include faulty wiring or connectors in the DEF system, a malfunctioning Reductant Sensor Module, or issues with the CAN (Controller Area Network) communication circuit.

4. How do I fix the U010E code on my 2017 GMC Sierra?

Start by checking and repairing any damaged or corroded wiring or connectors in the DEF system. If the issue persists, test the Reductant Sensor Module and replace it if necessary.

5. Can driving with the U010E code damage my 2017 GMC Sierra?

While it may not cause immediate damage, ignoring the issue can lead to reduced engine performance or emissions compliance problems, which may worsen over time.

6. How do I diagnose the U010E code on a 2017 GMC Sierra?

Use a scan tool to check for related codes, inspect the wiring and connectors for damage, and test the Reductant Sensor Module and CAN network for proper communication.

7. Is the U010E code covered under warranty for a 2017 GMC Sierra?

It may be covered if your vehicle is still under the emissions or powertrain warranty. Check with your dealership for details.

8. Can a weak battery cause the U010E code on a 2017 GMC Sierra?

Yes, low voltage from a weak or failing battery can disrupt communication between modules and trigger the U010E code.

9. How much does it cost to repair the U010E code on a 2017 GMC Sierra?

Repair costs vary, but fixing damaged wiring or connectors may cost $100-$300, while replacing the Reductant Sensor Module can cost $500-$1,000, including labor.

10. Can I clear the U010E code without fixing it on my 2017 GMC Sierra?

You can clear the code with a scan tool, but it will likely return if the underlying issue is not resolved.