2006 Trailblazer EXT TCM Transmission Control Module 24230461

Restore Flawless Shifting Instantly

Fix harsh shifting and clear transmission codes with this VIN-programmed T42 Transmission Control Module for your 2006 Trailblazer EXT. Ready for plug-and-play installation right out of the box. Order today for a lasting repair!

$79.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 591-07270-36 Categories: ,
Guaranteed Safe Checkout

Restore Peak Performance to Your SUV’s Transmission

If your 2006 Chevrolet Trailblazer EXT is suffering from erratic shifting, getting stuck in gear, or displaying transmission-related warning lights, a failing Transmission Control Module (TCM) is the most likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change, managing torque converter lockup, and monitoring system health. When it fails, it can lead to poor performance, decreased fuel economy, and potentially catastrophic transmission damage. This genuine GM T42 TCM, part number 24230461, is the definitive solution to restore your vehicle’s factory-smooth operation.

From the Diagnostic Bay

We had a 2006 Trailblazer EXT come into the shop that had the owner completely stumped. It would shift hard from first to second, but only when warm. Other times, it would seem to slip out of gear entirely. The dash was lit up with a P0700 code, which is a generic transmission fault. After checking the fluid and solenoids, which all looked fine, we focused on the TCM. We swapped in a VIN-programmed module, and the difference was immediate. The hard shifts vanished, the codes cleared, and the vehicle drove like it just left the showroom. It’s a reminder that sometimes the most complex-seeming transmission issues trace back to a single electronic component.

Diagnosing a Faulty 2006 Trailblazer EXT TCM

The transmission control module is a critical component, and its failure can manifest in several ways. Recognizing these symptoms early can save you from more costly repairs down the road. If you are experiencing any of the issues below, it’s time to consider a replacement.

  • ✔ Harsh or Delayed Shifting: Your vehicle may slam into gear, hesitate before shifting, or feel like it’s slipping between gears.
  • ✔ Stuck in Limp Mode: The transmission may refuse to shift out of a single gear (often 2nd or 3rd) to prevent further damage.
  • ✔ Warning Lights: The Check Engine Light or a specific transmission warning light will illuminate on your dashboard.
  • ✔ Diagnostic Trouble Codes (DTCs): Common codes associated with a bad TCM include P0700, P0750, P0753, P0758, and other solenoid-related faults.
  • ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation can cause a noticeable drop in your MPG.
  • ✔ No Communication: In severe cases, a scan tool may be unable to communicate with the TCM, indicating a complete failure.

The Plug-and-Play Advantage: Pre-Programmed for Your VIN

Replacing a TCM isn’t just about swapping hardware. The module must be programmed with your vehicle’s specific Vehicle Identification Number (VIN) and the latest GM software to function correctly. Our service eliminates the need for an expensive trip to the dealership. We program this 2006 Trailblazer EXT TCM to your exact VIN before it ships. This ensures it communicates perfectly with your vehicle’s engine control module (ECM) and other systems right out of the box. Installation is straightforward, requires no special tools, and gets you back on the road faster.

This module is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E, and is interchangeable with numerous part numbers including 24252114, 24234503, and 24242391. Built to strict OEM standards and backed by a one-year warranty, it provides a reliable and lasting repair.

Frequently Asked Questions

Do I need to have this module programmed by a dealer?

No. This module comes fully programmed to your vehicle’s specific VIN. It is ready for installation upon arrival, saving you time and the cost of dealership programming.

Where is the TCM located on a 2006 Trailblazer EXT?

On the 2006 Trailblazer EXT with an 8-cylinder engine, the Transmission Control Module is typically located in the engine compartment on the left-hand (driver’s) side.

Is installation difficult for a DIY mechanic?

Installation is generally simple. It involves disconnecting the battery, locating the old module, unplugging the electrical connectors, unbolting it, and then installing the new one in reverse order. The entire process often takes less than 30 minutes.

Will this fix a P0700 check engine light code?

A P0700 code is a general fault code indicating the TCM has detected a problem. While a failing TCM is a very common cause, you should ensure other potential issues like low fluid or bad solenoids have been ruled out. In most cases where the module itself is the fault, this part will resolve the code.

Is there a core charge for this part?

No, we do not require a core charge. You can keep or dispose of your old module without the hassle of returning it.

Genuine OEM

Yes

Year

Brand

GM

MPN

24230461

Condition

Refurbished

Year

2006

Model

TRAILBLAZER EXT

Hardware Type

Interchange part number

Manufacturer Part Number

, , , , , , , , , , , , , , , , , ,

Scroll to Top