AutoCodes – GMC – U2145 GMC

U2145 GMC Code - Lost Communication With Parking Assistance System

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Parking Assistance System (PAS), Parking Assistance System harness is open or shorted, Parking Assistance System 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: U2145 GMC indicates Lost Communication With Parking Assistance System.
Common causes: Common causes include Faulty Parking Assistance System (PAS), Parking Assistance System harness is open or shorted, Parking Assistance System 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 581

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 Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2145 GMC Description

Devices connected to the 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 code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U2145 GMC - Lost Communication With Parking Assistance System - AutoCodes.com — U2145 GMC Code - Lost Communication With Parking Assistance System

What does this mean?

What are the Possible Causes of the DTC U2145 GMC?

Faulty Parking Assistance System (PAS)
Parking Assistance System harness is open or shorted
Parking Assistance System circuit poor electrical connection

How to Fix the DTC U2145 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 U2145 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 U2145 GMC Code

1. What are the common symptoms of OBDII code U2145 GMC?

When this code is present, you may experience issues with the parking assistance system, such as sensors not working properly or the system failing to detect obstacles.

2. What are the potential causes of OBDII code U2145 GMC?

The code U2145 indicates a communication problem with the parking assistance system, which can be caused by wiring issues, faulty sensors, a malfunctioning control module, or a software glitch.

3. How can I diagnose the cause of OBDII code U2145 GMC?

Diagnosing this code typically involves checking the wiring connections, inspecting the parking sensors for damage, and using a diagnostic tool to communicate with the control module and identify any faults.

4. Can I still drive my vehicle with OBDII code U2145 GMC?

While the vehicle may still be operational with this code present, it is recommended to address the issue promptly to ensure the proper functioning of the parking assistance system.

5. How do I repair OBDII code U2145 GMC?

Repairing this code may involve repairing or replacing damaged wiring, replacing faulty sensors, reprogramming the control module, or addressing any underlying issues causing the communication failure.

6. Can a DIY enthusiast fix OBDII code U2145 GMC?

Some aspects of diagnosing and repairing this code may be within reach of a DIY enthusiast with the right tools and knowledge, but complex issues may require professional assistance.

7. How much does it cost to fix OBDII code U2145 GMC?

The cost of fixing this code can vary depending on the underlying cause, parts needed for repair, and labor costs. It is advisable to consult with a mechanic for an accurate estimate.

8. Will resetting the OBDII code U2145 GMC make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the problem again.

9. Is OBDII code U2145 GMC a serious problem?

While the vehicle may still be drivable with this code, it is important to address it promptly to ensure the proper functioning of the parking assistance system and avoid potential safety hazards.

10. Can extreme weather conditions affect OBDII code U2145 GMC?

Extreme weather conditions, such as heavy rain or snow, can potentially impact the performance of the parking assistance system and contribute to communication errors triggering the U2145 code.