OEM Parking Assist Control Module for 2019-2025 Buick, Cadillac, & Chevrolet

Buying a replacement parking assist control module? Here's what to keep in mind.

What to Look For:

• Correct part: Make sure the module is designed for your specific vehicle year and model.
• Warranty: A warranty protects you if the module fails soon after you install it.
• Condition: Consider whether you want a used or new module.
• Reputation: Buy from a trusted source.

Quality Indicators:

• For used OEM parts: Look for modules that have been tested and inspected to ensure they're working properly.
• For new aftermarket parts: Choose a reputable brand known for producing high-quality parts.

What's Included:

Typically, you'll receive just the parking assist control module itself. You may need to reuse existing hardware or purchase new hardware separately.

Replacing the parking assist control module can be a DIY project, but it depends on your skill level.

Difficulty Level:

Intermediate. It involves some electrical knowledge and the ability to access the module.

Estimated Time:

1-2 hours.

Special Tools Needed:

• Socket set
• Screwdrivers
• Scan tool (to clear any error codes after installation)

Critical Steps and Tips:

1. Disconnect the battery: Always disconnect the negative battery terminal before working on electrical components.
2. Locate the module: The parking assist control module is usually located in the trunk or under the dashboard. Consult your vehicle's repair manual for the exact location.
3. Remove the old module: Disconnect the wiring harness and remove any mounting hardware.
4. Install the new module: Connect the wiring harness and secure the module with the mounting hardware.
5. Reconnect the battery: Reconnect the negative battery terminal.
6. Clear error codes: Use a scan tool to clear any error codes from the parking assist system.

DIY or Professional Installation?

If you're comfortable working on electrical systems and have some mechanical experience, you can probably handle this job yourself. If not, it's best to have a professional install the module.

Let's explore your options for buying a parking assist control module.

Used OEM:

Used OEM modules offer a great value. These are genuine factory parts that have been tested and inspected to ensure they're working properly. You can save a significant amount of money compared to buying a new part.

New Aftermarket:

New aftermarket modules are brand new parts made by third-party manufacturers. They are built to meet or exceed OE specifications. These can be a good option if you prefer a new part and want to save money compared to buying a new OEM module (if that option were available).

When replacing the parking assist control module, consider checking or replacing these related parts:

• Parking sensors: Faulty parking sensors can cause the control module to malfunction.
• Wiring harness: Damaged or corroded wiring can also cause problems.
• Bumper: Damage to the bumper can affect the sensor alignment.

Replacing these parts at the same time can help prevent repeat failures and ensure the parking assist system is working properly.

A parking assist control module typically lasts for 5-10 years.

Factors That Affect Longevity:

• Environmental conditions: Exposure to extreme temperatures, moisture, and vibration can shorten the module's lifespan.
• Driving habits: Rough driving can cause excessive vibration and stress on the module.
• Maintenance: Regular maintenance, such as keeping the parking sensors clean, can help extend the module's lifespan.

The price of a parking assist control module can vary depending on the source and condition.

• Used OEM: $50 - $200
• New Aftermarket: $75 - $300

Labor Cost Considerations:

If you choose to have a professional install the module, labor costs can range from $100 to $300, depending on the shop's hourly rate and the complexity of the job.

Total Job Cost Estimates:

• DIY (Used OEM): $50 - $200 (part only)
• DIY (New Aftermarket): $75 - $300 (part only)
• Professional Installation (Used OEM): $150 - $500 (part and labor)
• Professional Installation (New Aftermarket): $175 - $600 (part and labor)

Some 2019-2025 Buick, Cadillac, Chevrolet, and GMC vehicles have known issues with their parking assist systems.

• Some owners have reported false alarms or intermittent failures.
• Check for any Technical Service Bulletins (TSBs) related to the parking assist system on your specific vehicle. A TSB may provide updated diagnostic or repair procedures.
• Some complaints include the system not detecting objects properly in certain weather conditions.

After installing the new parking assist control module, it's important to verify that it's working properly.

How to Confirm Proper Operation:

1. Start the vehicle: Turn on the ignition and put the vehicle in reverse.
2. Listen for the beeps: The parking assist system should beep as you approach an object.
3. Check the display: The display should show the distance to the object.
4. Test in different conditions: Test the system in different lighting and weather conditions to ensure it's working reliably.

What to Look/Listen For:

• The parking sensors should detect objects accurately and consistently.
• The warning beeps should sound at the appropriate distance from the object.
• There should be no error messages on the dashboard.

Q: How do I know if my parking assist control module is bad?
A: Common signs include the system not working at all, false alarms, or intermittent failures. A scan tool can help diagnose the problem.

Q: Can I replace the parking assist control module myself?
A: If you have some mechanical experience and are comfortable working with electrical systems, you can probably replace it yourself. Otherwise, it's best to have a professional do it.

Q: Will a used OEM module work as well as a new one?
A: Used OEM modules are genuine factory parts that have been tested and inspected. They can be a reliable and cost-effective option.

Q: How long will a parking assist control module last?
A: A parking assist control module typically lasts for 5-10 years, depending on environmental conditions and driving habits.

Q: Do I need to program the new module after installation?
A: In some cases, the new module may need to be programmed to your vehicle. Consult your vehicle's repair manual or a professional mechanic for more information.

OEM Part Numbers:

• GM: 84421596, 84486242, 84699461

Fits Years: 2019 2020 2021 2022 2023 2024 2025