Restore Peak Transmission Performance to Your Savana Van
Is your 2006-2014 GMC Savana 1500 experiencing delayed shifts, getting stuck in gear, or showing transmission-related error codes? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating gear changes, managing torque converter clutch 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 series TCM, part number 24235753, is the definitive solution to get your workhorse van back on the road and running smoothly.
From the Diagnostic Bay
We had a 2011 Savana 2500 cargo van come into the shop with a complaint of harsh shifting and the check engine light on. The driver mentioned it felt like it was being “slammed” into gear. The scanner pulled a P0752 code for “Shift Solenoid ‘A’ Stuck On.” The initial thought was a bad solenoid pack inside the transmission pan. However, after checking the wiring and finding no issues, we inspected the TCM. A quick swap with a known-good test unit immediately solved the problem. The original TCM had an internal fault that was incorrectly commanding the solenoid, causing the harsh shifts. Replacing the module saved the customer from an unnecessary and costly internal transmission repair.
Diagnosing a Faulty 2006-2014 Savana TCM
A failing transmission module can manifest in various ways, often mimicking internal transmission problems. Before condemning your transmission, it’s crucial to consider the TCM as a primary suspect, especially if you experience any of the following issues. Our 2006-2014 Savana TCM is engineered to resolve these exact problems, restoring the precise electronic control your transmission needs.
Common Symptoms of TCM Failure
- ✔ Harsh, erratic, or delayed gear shifting.
- ✔ Vehicle enters “limp mode,” often stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0755, or other solenoid-related codes are present.
- ✔ Inability to upshift or downshift properly.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ Intermittent loss of communication with the TCM on a scan tool.
The Plug-and-Play Advantage: VIN Programming Included
One of the biggest hurdles in replacing modern electronic modules is the need for expensive dealership programming. We eliminate that step entirely. Each module is expertly programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that the TCM has the correct software and calibration for your Savana’s specific transmission (4L60E, 4L65E, 4L80E) and engine combination. The result is a true plug-and-play installation—no extra tools or trips to the dealer required. This process not only saves you time and money but also guarantees optimal performance and resolves common software-related DTCs right out of the box.
This module is a direct replacement for a wide range of GM part numbers, including 24242391, 24234503, 24252114, 24230461, and many others, making it a versatile solution for numerous GM trucks, vans, and SUVs from this era. Installation is straightforward for any DIYer or professional technician, typically located in the engine bay for easy access. Simply disconnect the battery, unbolt the old module, disconnect the electrical connectors, and install the new one in its place.
Frequently Asked Questions
Does this module require additional programming after installation?
No. This Transmission Control Module is pre-programmed to your vehicle’s VIN before shipping. It is ready for installation right out of the box, requiring no further dealership programming or flashing.
Where is the TCM located on a GMC Savana?
On most 2006-2014 GMC Savana and Chevrolet Express vans, the TCM is located in the engine compartment on the right-hand (passenger) side. Always confirm the location on your specific vehicle before beginning the replacement.
What is the difference between a TCM and an ECM?
The TCM (Transmission Control Module) specifically controls the functions of the automatic transmission. The ECM (Engine Control Module), also known as the ECU, manages the engine’s performance. They are separate computers but work together to ensure the vehicle operates efficiently.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault code, indicating that the TCM has detected a problem and requested the check engine light be turned on. While a faulty TCM can cause a P0700, it’s important to scan for more specific codes (like P07xx) to pinpoint the issue. This module often resolves the root electronic cause of many of these codes.
Is there a core charge for this part?
No, there is no core charge for this module. You can keep your old part without the hassle of returning it, saving you time and money.