AutoCodes - Gmc - U0302 GMC

U0302 GMC Code - Software Incompatibility With Transmission Control Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U0302 GMC code possible causes

  • Transmission Control Module Programmed With Incorrect Software
  • Faulty Transmission Control Module

|How do I fix the U0302 GMC code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the U0302 GMC code

Labor: 1.0

The cost of diagnosing the U0302 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U0302 GMC code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|U0302 GMC code description

Some devices must be configured with specific software, serial numbers, vehicle options, or other information. If a device was not properly configured after installation that the device may set the appropriate communication Diagnostic Trouble Code (DTC)s. No external circuit diagnosis is involved. The DTC sets when the Transmission Control Module is not configured properly.
OBDII Code U0302 Gmc - Software Incompatibility With Transmission Control Module -

|Need more information with the U0302 GMC code?

Need more information on how to fix the U0302 GMC code? Get Access to Factory Service Manuals

|Need help with a U0302 GMC code?

Get the U0302 Gmc code diagnosed by a professional: Find a repair shop in your area

|U0302 GMC code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U0302 Gmc code? Have you replaced any parts?
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Repair Importance Level: 3
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