Restore Peak Transmission Performance in Your GMC Savana
Is your 2006-2014 GMC Savana 1500 suffering from harsh shifting, delayed gear engagement, or a persistent check engine light? These are classic symptoms of a failing Transmission Control Module (TCM). As the electronic brain of your automatic transmission, a faulty TCM can cripple your vehicle’s performance, reliability, and fuel economy. This genuine GM T42 Transmission Control Module, service part number 24235340, is the definitive solution to get your work van or passenger van back on the road and operating flawlessly.
This isn’t just a replacement part; it’s a complete, plug-and-play solution. We pre-program each module to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This critical step ensures seamless communication with your van’s other computers, like the Engine Control Module (ECM), eliminating the need for an expensive trip to the dealership for programming. Simply install the module, and you’re ready to go.
From the Diagnostic Bay
We had a 2011 Savana 2500 work van come into the shop that was stuck in third gear—a classic ‘limp mode’ case. The driver was losing time and money on a job site because the van was practically undrivable. After a quick scan, we saw a cluster of solenoid communication codes pointing directly at the TCM. Instead of a costly transmission rebuild, we installed one of our VIN-programmed T42 modules. The installation took less than 30 minutes, right there in the engine bay. After clearing the codes, the van shifted perfectly through all gears. The customer was back on the job the same afternoon, saving hundreds over a dealership repair.
Symptoms of a Failing Savana 1500 Transmission Module
- ✔ Unpredictable or harsh shifting between gears.
- ✔ The vehicle gets stuck in a single gear (limp mode).
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ Illumination of the Check Engine Light or Transmission Warning Light.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults.
- ✔ Poor fuel efficiency and potential transmission overheating.
- ✔ Complete loss of communication with the transmission.
Why Choose Our Programmed Savana 1500 Transmission Module?
This module is engineered to meet and exceed original equipment standards for the 4L60E, 4L65E, and 4L70E transmissions commonly found in your Savana. By replacing your old, failing unit, you’re not just fixing a problem—you’re restoring the precise electronic control that ensures longevity and efficiency for your entire drivetrain. Our VIN programming service uses the latest GM software updates, which can often resolve issues that were present even in the original factory software.
Key Features:
- Plug & Play Installation: Arrives pre-programmed to your VIN. No dealership visit required.
- Restores Shift Quality: Eliminates hard shifts, slipping, and hesitation for a smooth driving experience.
- Clears Fault Codes: Corrects the root cause of common transmission-related DTCs.
- OEM Standard Quality: Built for durability and reliability, backed by our one-year warranty.
- Broad Compatibility: Interchangeable with numerous part numbers including 24252114, 24234503, 24242391, and more.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We handle all the programming for you. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for immediate installation. This saves you time and the typical programming fees charged by dealerships.
Where is the TCM located on my GMC Savana?
On most 2006-2014 GMC Savana and Chevrolet Express vans, the Transmission Control Module is located in the engine compartment on the right-hand (passenger) side. Always disconnect the battery before beginning removal and installation.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the ECM to turn on the check engine light. While a failing TCM is a very common cause, this code indicates another transmission-specific code is stored. This module will resolve the issue if the underlying cause is the TCM itself, which is often the case with solenoid communication errors or internal module failure.
Is there a core charge for my old part?
No, we do not require you to send back your old module. There is no core charge associated with this purchase, making the process faster and more convenient for you.
What if I have the wrong part number?
This T42 module is interchangeable with a wide range of GM service numbers. As long as your vehicle is listed in our compatibility chart, this module will function correctly once programmed to your VIN, even if the number on your old part is different.