OEM Telematics Control Module for 2006-2007 Buick, Cadillac, Chevrolet, GMC, Isuzu, Pontiac, Saab, & Saturn

What to look for when buying this part:

• Make sure the part is the correct type for your car's year, make, and model.
• Check the part's condition carefully, especially if buying a used one.
• Ask about the seller's return policy and warranty.
• Consider the price and compare it to other options.

Quality indicators for the available options:

What's typically included with the part:

• The Telematics Control Module itself.
• Sometimes, mounting hardware or connectors (check with the seller).
• Installation instructions may or may not be included.

Difficulty level and estimated time:

• Moderate. It could take 1-3 hours.

Special tools needed (if any):

• Socket set
• Screwdrivers
• Scan tool (for clearing codes after installation)
• Possibly a trim removal tool

Critical steps and tips:

1. Disconnect the car's battery before starting.
2. Locate the Telematics Control Module (usually under the dash or in the trunk).
3. Disconnect the wiring harness from the module.
4. Remove the old module and install the new one.
5. Reconnect the wiring harness and the car's battery.
6. Use a scan tool to clear any error codes.

Whether DIY is recommended or professional installation is better:

• DIY is possible if you have some mechanical experience.
• Professional installation is recommended if you're not comfortable working on cars.

Compare: Used OEM, New Aftermarket

Used OEM: Best value - genuine factory parts, tested and inspected, at significantly lower prices. These parts are original equipment from the vehicle manufacturer. They offer a cost-effective way to get a quality replacement.

New Aftermarket: Brand new third-party parts built to OE specs. These parts are made by companies other than the original manufacturer. They can be a good option if you want a new part and are willing to consider different brands.

Parts commonly replaced or checked at the same time:

• Car Battery
• Antenna
• Wiring Harness
• Radio or Navigation System

Why replacing related parts prevents repeat failures:

• A weak battery can cause electrical problems that damage the Telematics Control Module.
• A damaged antenna can prevent the module from communicating properly.
• Corroded wiring can cause shorts and other electrical issues.
• Replacing these parts can ensure the new Telematics Control Module works correctly and lasts longer.

How long this part normally lasts:

• 5-10 years or more.

Factors that affect longevity:

• Climate (extreme temperatures can shorten lifespan).
• Vehicle maintenance (keeping the car in good condition helps).
• Driving habits (rough driving can cause vibrations that damage the module).
• Water damage (leaks can cause corrosion).
• Electrical issues (surges or shorts can damage the module).

Budget vs mid-range vs premium options:

• Used OEM: $50 - $150
• New Aftermarket: $75 - $250

Labor cost considerations if applicable:

• Labor costs can range from $75 to $200, depending on the mechanic and the car.

Total job cost estimates:

• Used OEM + Labor: $125 - $350
• New Aftermarket + Labor: $150 - $450

Known issues for this vehicle's system related to this part:

• Some models have issues with water leaking into the trunk, which can damage the Telematics Control Module.
• Some owners have reported problems with the OnStar system not working correctly.
• Certain models are known to have issues with excessive battery drain caused by a faulty module.

Any TSBs or common complaints:

• Check online forums and databases for any Technical Service Bulletins (TSBs) or common complaints related to the Telematics Control Module in your specific vehicle.

How to confirm proper operation:

• Check that the OnStar or similar service is working correctly.
• Make sure there are no error messages on the dashboard.
• Test the car's navigation system.
• Monitor the car's battery to make sure it's not draining too quickly.

What to look/listen for to verify it's working correctly:

• The OnStar light should be green.
• You should be able to make calls through the OnStar system.
• The navigation system should be able to locate your car.
• The car should start normally and the battery should hold a charge.

Q: Will this part need to be programmed to my car?
A: It might. Some vehicles require the Telematics Control Module to be programmed to the car's computer. Check with a mechanic or dealer to see if programming is needed for your car.

Q: How do I know if this is the right part for my car?
A: Make sure to check the year, make, and model of your car to ensure the part is compatible.

Q: What if the part doesn't fix my problem?
A: Contact the seller to see if you can return the part. It's also a good idea to have a mechanic diagnose the problem to make sure you're replacing the correct part.

Q: What kind of warranty comes with a used OEM Telematics Control Module?
A: Warranty coverage varies by seller. Check the seller's warranty policy before you buy the part.

Q: Is it difficult to replace this part myself?
A: Replacing the Telematics Control Module can be tricky. If you're not comfortable working on cars, it's best to have a professional install it.

OEM Part Numbers:

• GM: 15270941, 15270943, 15921150

Fits Years: 2006 2007