2006 Envoy XL TCM Transmission Control Module 24234503

Restore Smooth Shifting Performance

Fix harsh shifting and clear transmission codes in your 2006 Envoy XL with this VIN-programmed T42 TCM. This OEM-quality module is a direct-fit, plug-and-play solution that requires no dealer visit. Get back on the road with confidence. Order today!

$79.95

+11.99 USPS Priority Shipping

Availability: In stock



SKU: 591-07270-117 Categories: ,
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Is Your 2006 Envoy XL Shifting Erratically?

If you’re dealing with harsh shifts, delayed gear engagement, or a check engine light pointing to transmission codes like P0700, a faulty Transmission Control Module (TCM) is the likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change and ensuring smooth, efficient operation. When it fails, it can leave your vehicle stuck in limp mode, diminish fuel economy, and make driving a frustrating and unpredictable experience. This replacement GM T42 TCM, service number 24234503, is the definitive solution to restore your vehicle’s transmission performance.

From the Diagnostic Bay

We had a 2006 GMC Envoy XL come into the shop with classic symptoms of a failing transmission—slamming into gear and refusing to shift past 2nd. The owner had already spent money replacing a couple of shift solenoids based on a forum suggestion, but the problem persisted. After a quick scan, we saw communication errors with the TCM. Instead of continuing to throw parts at it, we installed one of our VIN-programmed T42 modules. The installation took less than 30 minutes. After clearing the codes, the Envoy shifted perfectly on the test drive. It’s a common story: diagnosing the root cause saves time, money, and a lot of headaches.

Signs Your Transmission Control Module is Failing

  • ✔ Harsh, erratic, or delayed shifting that makes driving uncomfortable.
  • ✔ Vehicle is stuck in a single gear (limp mode), usually 2nd or 3rd, as a protective measure.
  • ✔ The check engine light or transmission warning light is illuminated on your dashboard.
  • ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are present.
  • ✔ Inability to upshift or downshift, leading to poor acceleration and performance.
  • ✔ A noticeable decrease in fuel efficiency as the transmission operates incorrectly.
  • ✔ Complete loss of communication with the module, resulting in transmission failure.

Why Our Programmed 2006 Envoy XL TCM is the Superior Choice

Don’t settle for a generic module that requires an expensive trip to the dealership for programming. Our T42 TCM comes pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). This critical step ensures that the module has the latest GM software updates and is perfectly calibrated for your Envoy XL’s engine, transmission, and tire size. The result is a true plug-and-play installation that restores factory performance right out of the box. This module is built to meet or exceed original equipment standards, providing a reliable, long-term fix for your transmission woes.

Simple Installation for a Fast Repair

Replacing the TCM is a straightforward job that can be done with basic hand tools in under an hour. On the 2006 Envoy XL, the module is typically located in the engine compartment on the driver’s side. Simply disconnect the negative battery terminal, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Reconnect everything, clear any stored diagnostic codes with a scan tool, and you’re ready to go. There’s no core charge, so you can keep your old part without the hassle of returning it.

This module is also a direct replacement for a wide range of other GM vehicles and interchanges with numerous part numbers, including 24252114, 24230461, 24234274, 24256960, and more, making it a versatile solution for many popular cars, trucks, and SUVs.

What is VIN programming and why is it important?

VIN programming involves loading your vehicle’s specific software and calibrations onto the module before it ships. This ensures the TCM communicates perfectly with your vehicle’s other computers, managing shift points, torque converter lockup, and line pressure according to factory specifications for your exact model. It eliminates the need for dealer programming and guarantees optimal performance.

Do I need to take this module to a dealer after installation?

No. Because this module arrives pre-programmed to your VIN, no further programming or setup is required. It is designed for a plug-and-play installation, saving you the time and expense of a dealership visit.

Is this a difficult part to install myself?

For most individuals with basic mechanical skills, this is a very manageable DIY repair. The module is easily accessible in the engine bay on most compatible vehicles. The process involves disconnecting the battery, swapping the modules, and reconnecting everything. The entire job typically takes under 30 minutes.

How do I know if my TCM is failing and not a transmission solenoid?

While a bad solenoid can cause shifting issues in a single gear, a failing TCM often affects multiple gears and can cause erratic behavior, communication error codes (like P0700), or cause the vehicle to enter limp mode. If you are experiencing multiple, inconsistent transmission problems, the TCM is a more likely culprit than a single solenoid.

What is the warranty on this part?

This transmission control module is backed by a one-year warranty, giving you peace of mind and confidence in the quality and durability of your repair.

Genuine OEM

Yes

Year

Brand

GM

MPN

24234503

Condition

Refurbished

Year

2006

Model

ENVOY XL

Hardware Type

Interchange part number

Manufacturer Part Number

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