Is your 2006-2014 GMC Savana 1500 experiencing frustrating and unreliable transmission performance?
Harsh shifting, delayed gear engagement, or a persistent check engine light can sideline your work van or passenger vehicle, pointing directly to a failing Transmission Control Module (TCM). As the central computer for your automatic transmission, the TCM dictates every shift, manages torque converter lockup, and monitors system health. When it fails, your Savana’s drivability and reliability are severely compromised. This VIN-programmed GM T42 TCM, part number 24252114, is the definitive, plug-and-play solution to restore your transmission’s precise, factory-spec operation and get you back on the road with confidence.
From the Diagnostic Bay
We recently had a 2011 Savana 2500 work van towed in, stuck in third gear—a classic case of ‘limp mode.’ The owner had already spent money replacing two shift solenoids based on generic trouble codes, but the problem persisted. A quick scan with our professional equipment showed intermittent communication errors with the TCM. Instead of continuing to guess and replace parts, we identified the root cause: the original T42 module had an internal electronic failure. Installing one of our pre-programmed modules had the van shifting perfectly on the test drive, all in under an hour. It saved the client from a potentially massive bill for an unnecessary transmission rebuild.
Is Your Savana 1500 Showing These Signs of a Bad TCM?
- ✔ Abrupt, jerky, or unpredictable gear changes during acceleration.
- ✔ The vehicle gets stuck in a single gear (often 2nd or 3rd) and will not shift up or down.
- ✔ Your dashboard displays a transmission warning light or a check engine light.
- ✔ A scan tool reveals Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0755, or other solenoid-related faults.
- ✔ A noticeable decrease in fuel efficiency accompanied by poor shifting performance.
- ✔ The transmission seems to slip out of gear or delays engaging when shifting from Park to Drive or Reverse.
- ✔ No communication with the TCM when using a diagnostic scan tool.
The Direct Solution: A Programmed Savana 1500 T42 TCM
Don’t let a faulty module dictate your vehicle’s performance. This T42 TCM is the superior fix for your 2006-2014 Savana 1500. The most significant benefit is our complimentary VIN programming service. We flash the module with your vehicle’s specific identification number and the latest GM software updates before it ships. This ensures complete compatibility with your van’s powertrain and electronics, eliminating the need for expensive and time-consuming dealership programming. It arrives at your door ready for a straightforward, plug-and-play installation.
Built to strict OEM standards, this module ensures dependable, long-term performance. It correctly manages hydraulic pressures and solenoid commands, restoring the smooth, efficient shifting you expect. By replacing your failing unit, you not only fix the immediate symptoms but also prevent potential long-term damage to your transmission’s mechanical components caused by incorrect fluid pressures and shifting patterns.
Simple Installation to Get You Back to Work
Installation is simple and can typically be completed in under 30 minutes with basic hand tools. On the GMC Savana and Chevrolet Express vans, the TCM is conveniently located in the engine compartment on the right-hand (passenger) side.
- Safety First: Disconnect the negative terminal of your vehicle’s battery.
- Locate and Remove: Unplug the electrical connectors from the old TCM and unbolt it from its mounting bracket.
- Install New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses.
- Final Steps: Reconnect the battery. While the module is plug-and-play, it’s always best practice to use a scan tool to clear any stored diagnostic trouble codes from the system.
This module fits a wide range of General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is a direct replacement for multiple part numbers, including: 24234503, 24230461, 24242391, 24256960, and more, ensuring a perfect fit for your specific application.
Frequently Asked Questions
What does “VIN Programmed” mean for my Savana?
It means we load the module with your specific van’s Vehicle Identification Number (VIN) and the latest GM-certified software before shipping. This makes the unit fully compatible with your vehicle’s systems right out of the box, so you don’t need to pay a dealership for additional programming.
Do I need to take my van to a dealer after installing this part?
No. Because the module is pre-programmed to your VIN, it is a true plug-and-play installation. You can install it yourself or have your local mechanic do it without the need for specialized dealer equipment.
Where is the TCM located on my 2006-2014 Savana 1500?
On the Savana and Express vans, the Transmission Control Module is typically found in the engine bay, mounted on the right-hand (passenger) side.
Will this TCM fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem and requested the check engine light. While a faulty TCM can cause this code, it’s important to scan for other transmission-specific codes (e.g., P07xx series) to confirm the diagnosis. In many cases where the TCM itself has failed, replacing it will resolve the P0700 and related codes.
Is there a core charge for this part?
No, there is no core charge for this transmission control module. You can keep your old part without needing to send it back, saving you time and hassle.