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Body Control Module
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2007 Chevrolet Trailblazer Telematics Control Module (OEM)

✓ IN STOCK
$59.95

ℹ️ Product Notes

This is a used part. This is the control module for the car's chassis. It handles communication, like the OnStar system. This part matches GM option code UE1.

This module may need to be programmed by a dealer to work with your car. Check your old part for a matching ID number before buying.

Original Part #(s): 15270941, 15270943, 15921150
Condition: Excellent (A)
Like new, minimal to no wear
50,454 miles
Odometer reading when part was removed
SKU #
259538-61210-195

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

Chevrolet
Trailblazer 2007 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
A SUV 2007 L6 4.2L RWD | Automatic
B SUV 2007 L6 4.2L RWD | Automatic
Base SUV 2007 L6 4.2L RWD | Automatic
LS SUV 2007 L6 4.2L RWD/4WD | Automatic
LS SUV 2007 V8 5.3L RWD/4WD | Automatic
LT SUV 2007 L6 4.2L RWD/4WD | Automatic
LT SUV 2007 V8 5.3L RWD/4WD | Automatic
SS SUV 2007 V8 6.0L AWD/RWD | Automatic

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning signs the Telematics Control Module is failing:

  • Your car's OnStar or similar service stops working.
  • You get error messages on your dashboard related to communication or navigation.
  • The car battery drains faster than normal.
  • The car won't start or has trouble starting.
  • The radio or other electronic systems act strangely.

How to test if this part is the problem:

  • Have a mechanic use a scan tool to check for error codes related to the telematics system.
  • Check the wiring and connections to the module for damage or corrosion.
  • Rule out other possible causes, like a bad antenna or a problem with the car's computer.
  • Swap the module with a known good one to see if the problem goes away (this should be done by a professional).

Common failure causes for this part:

  • Water damage or corrosion due to leaks in the car.
  • Electrical surges or shorts in the car's wiring.
  • Normal wear and tear over time.
  • Problems with the car's battery or charging system.
  • Physical damage from an accident.

Buyer's Checklist

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:

FeatureUsed OEMNew Aftermarket
OriginOriginal manufacturer partThird-party manufacturer
TestingTypically tested and inspectedNew, but may have varying quality control
PriceGenerally lower than new aftermarketCan be competitive with used OEM
ReliabilityProven track record, but may show wearReliability varies by brand

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.

Installation Overview

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.

Buying Options

Compare: Used OEM, New Aftermarket

FeatureUsed OEMNew Aftermarket
PriceGenerally lowerCan be competitive
QualityOriginal manufacturer qualityQuality varies by brand
AvailabilityMay be limitedGenerally readily available
WarrantyVaries by sellerTypically offered by manufacturer

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.

Typical Lifespan

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).

Price Ranges

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

Vehicle-Specific Notes

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.

Verification After Install

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.

FAQ

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.

Part Specifications

OEM Part Numbers:

  • GM: 15270941, 15270943, 15921150

Fits Years: 2007

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