Restore Smooth Shifting to Your Pontiac G6
Is your 2006-2010 Pontiac G6 suffering from erratic shifting, getting stuck in gear, or displaying a check engine light with transmission-related codes? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for managing gear changes, fluid pressure, and overall performance. When it fails, it can make your car unreliable and frustrating to drive. This genuine GM T42 TCM, part number 24243921, is the definitive solution, delivered pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
From the Diagnostic Bay
We recently had a 2008 Pontiac G6 come into the shop with a classic complaint: it was stuck in 3rd gear, a condition known as “limp mode,” and the check engine light was on. The owner had already replaced a shift solenoid based on a generic code, but the problem persisted. Our scan tool pulled a P0700 (Transmission Control System Malfunction) code. Instead of chasing more individual parts, we went straight to the source. A quick check of the TCM’s data stream showed erratic readings. We replaced the old unit with one of our VIN-programmed T42 modules. The installation took less than 30 minutes. After clearing the codes, the G6 shifted perfectly on the test drive. The customer was thrilled to have their car back on the road without an expensive trip to the dealership for programming.
Common Symptoms of a Failing G6 TCM
- ✔️ Harsh, delayed, or unpredictable gear shifts.
- ✔️ The vehicle gets stuck in a single gear (limp mode) and will not shift up or down.
- ✔️ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔️ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0753, or other solenoid-related faults are present.
- ✔️ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔️ The transmission seems to slip out of gear or struggles to engage from Park.
- ✔️ Complete loss of communication with the transmission module, preventing diagnostics.
Why Choose Our 2006-2010 G6 Transmission Module?
This isn’t just a replacement part; it’s a complete solution designed to get your vehicle running correctly without hassle. Our commitment to quality and convenience sets us apart. When you order this 2006-2010 G6 Transmission Module, you’re getting a component that has been meticulously prepared to meet and exceed original factory specifications. We handle the complex programming so you don’t have to.
Key Benefits:
- VIN Programmed for Your Car: We program the module with the latest GM software updates using your vehicle’s VIN. This ensures perfect communication between the TCM, engine, and other vehicle systems, eliminating the need for a costly dealership visit.
- Direct-Fit OEM Quality: Built to stringent OEM standards, this T42 module guarantees the same fit, form, and function as the original part. It directly replaces service numbers 24243921, 24242391, 24234503, and 24252114.
- Restored Performance and Reliability: A new TCM restores crisp, accurate shifting, improves fuel efficiency, and resolves frustrating electrical and diagnostic issues. Drive with confidence knowing your transmission is operating as it should.
- No Core Charge: Keep your old part. We don’t require a core return, saving you time, money, and the hassle of shipping your old module back.
Simple Installation Process
For the Pontiac G6 (2006-2010), the TCM is conveniently located at the driver’s side (LH) strut tower in the engine compartment. The installation is straightforward for a DIY mechanic or any professional technician.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the TCM: Find the module at the LH strut tower.
- Disconnect and Remove: Carefully unplug the electrical connectors and unbolt the old module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed TCM, reconnect the electrical harnesses, and re-attach the battery terminal.
- Final Steps: Use a standard OBD2 scan tool to clear any stored diagnostic trouble codes from the vehicle’s computer system. Start the car and take it for a test drive to confirm smooth operation.
By purchasing this pre-programmed 2006-2010 G6 Transmission Module, you are choosing a reliable, cost-effective repair that will restore your vehicle’s drivability and peace of mind. End the shifting problems and get back on the road today.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This module comes fully pre-programmed to your vehicle’s specific VIN. It is ready for installation right out of the box, saving you the time and expense of a dealership visit.
Where is the TCM located on my 2007 Pontiac G6?
For the 2006-2010 Pontiac G6, the Transmission Control Module is located in the engine bay, typically mounted to the driver’s side (LH) strut tower.
Is this part compatible with other GM vehicles?
Yes, this T42 TCM is compatible with a wide range of 2006-2014 GM vehicles that use 4-speed automatic transmissions like the 4L60E and 4L65E. While this listing is for the G6, it also fits models like the Chevy Cobalt, HHR, Impala, and Saturn Aura, among others. We program it specifically for the vehicle you provide.
What is a core charge? Do I have to send my old part back?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item, so you can keep your old module without any extra fees or hassle.
What kind of warranty is included?
This transmission control module is backed by a one-year warranty, giving you confidence and protection against any potential defects.