Tired of a Jerky Ride? Restore Your G5’s Smooth Shifting
If your 2007-2010 Pontiac G5 is suffering from harsh shifting, getting stuck in gear, or has an illuminated check engine light, a failing Transmission Control Module (TCM) is the most likely culprit. As a mechanic with over two decades of experience, I’ve seen these T42 modules cause countless headaches for drivers. This isn’t just an annoyance; it’s a critical failure that affects your car’s safety, fuel economy, and long-term transmission health. This replacement T42 TCM, part number 24235732, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Case Study: The Ghost in the Transmission
A customer brought in a 2008 Chevy Cobalt—which shares its platform with the G5—with classic symptoms of a bad shift solenoid. The car would shift hard from 1st to 2nd and occasionally throw a P0752 code (Shift Solenoid ‘A’ Stuck On). The owner had already replaced the solenoid pack inside the transmission, but the problem persisted. After running a full diagnostic, we found the solenoid was receiving erratic voltage commands. The root cause wasn’t the solenoid at all; it was the TCM itself. The internal drivers were failing under load. We installed a VIN-programmed T42 module, and the car has been shifting perfectly ever since. This is a common scenario where chasing codes can be misleading; the problem is often the brain, not the muscle.
Is Your Pontiac G5 Showing These Symptoms?
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ Vehicle stuck in “limp mode,” often refusing to shift out of 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is on.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, P0752, or other solenoid-related faults.
- ✔ A complete loss of communication with the transmission module.
- ✔ Noticeably worse fuel efficiency due to improper gear selection.
Solving Problems with the 2007-2010 G5 Transmission Module
This isn’t just a replacement part; it’s a complete solution. The biggest challenge with replacing a modern TCM is the required programming. Without it, the module won’t communicate with your car’s other systems. We handle that for you. By programming the module to your VIN before it ships, we eliminate the need for an expensive trip to the dealership. You get a part that’s ready to install right out of the box, restoring the precise electronic control your transmission needs for optimal performance and longevity.
DIY Installation: Get Your G5 Shifting Smoothly in Minutes
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the Module: On the Pontiac G5, the TCM is typically found on the driver’s side, mounted to the strut tower in the engine bay.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. Use a socket wrench to remove the bolts or nuts holding the old module in place.
- ✔ Install the New Module: Mount the new, pre-programmed TCM in the same location and secure it with the original hardware. Reconnect the electrical connectors, ensuring they click into place securely.
- ✔ Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s always a good practice to use a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory.
Verified Vehicle Compatibility
While this listing is focused on the Pontiac G5, this T42 TCM is compatible with a wide range of General Motors vehicles. Please verify your part number and check the list below to ensure proper fitment.
This part will fit these makes and models with these options:
- ALLURE 06-09 Transmission; (lower air cleaner housing)
- AURA 07-09 Transmission; (LH frame rail front)
- AVALANCHE 1500 07-08 Transmission; (next to battery)
- CANYON 08-12 Transmission; (RH rear engine compartment)
- COBALT 06-10 Transmission; (LH strut tower)
- COLORADO 08-12 Transmission; (RH rear engine compartment)
- DTS 06-11 Transmission; (RH front engine compartment)
- ENVOY 06-07 Transmission; (LH engine compartment), (8 cylinder)
- ENVOY 08-09 Transmission; (LH engine compartment)
- ENVOY XL 06 Transmission; (LH engine compartment), (8 cylinder)
- EXPRESS 1500 VAN 06-14 Transmission; (RH engine compartment)
- EXPRESS 2500 VAN 06-14 Transmission; (RH engine compartment)
- EXPRESS 3500 VAN 06-14 Transmission; (RH engine compartment)
- G5 07-10 Transmission; (LH strut tower)
- G6 06-10 Transmission; (LH strut tower)
- GRAND PRIX 06-08 Transmission; (lower air cleaner housing)
- HHR 06-11 Transmission; (LH engine compartment)
- HUMMER H3 08-10 Transmission; (RH rear engine compartment)
- IMPALA 06-11 Transmission; (lower air cleaner housing)
- ION 06-07 Transmission; (behind LH strut tower)
- LACROSSE 06-09 Transmission; (lower air cleaner housing)
- LUCERNE 06-07 Transmission; (4.6L), (LH engine compartment)
- LUCERNE 08-11 Transmission; (LH engine compartment)
- MALIBU 06-10 Transmission; (LH frame rail)
- MONTE CARLO 06-07 Transmission; (lower air cleaner housing)
- MONTANA 06-09 Transmission; (LH strut tower)
- PURSUIT 06 Transmission; (LH strut tower)
- RAINIER 06-07 Transmission
- RENDEZVOUS 06-07 Transmission; (air cleaner box)
- SAAB 9-7X 06-09 Transmission; (LH engine compartment)
- SAVANA 1500 VAN 06-14 Transmission; (RH engine compartment)
- SAVANA 2500 VAN 06-14 Transmission; (RH engine compartment)
- SAVANA 3500 VAN 06-14 Transmission; (RH engine compartment)
- SIERRA 1500 PICKUP 07 Transmission; (new style, smooth door skin), (next to battery)
- SIERRA 1500 PICKUP 08 Transmission; (next to battery)
- SIERRA 1500 PICKUP 09-13 Transmission; (next to battery), w/o hybrid option
- SIERRA 2500 PICKUP 07 Transmission; new style (smooth door skin), 6.0L, (next to battery)
- SILVERADO 1500 PICKUP 07 Transmission; (new style, smooth door skin), (next to battery)
- SILVERADO 1500 PICKUP 08 Transmission; (next to battery)
- SILVERADO 1500 PICKUP 09-13 Transmission; (next to battery), w/o hybrid option
- SILVERADO 2500 PICKUP 07 Transmission; new style (smooth door skin), 6.0L, (next to battery)
- SSR 05-06 Transmission; (front LH frame)
- SUBURBAN 1500 07-08 Transmission; (next to battery)
- TAHOE 07 Transmission; (next to battery)
- TAHOE 08-09 Transmission; (next to battery), w/o auxiliary oil cooler pump
- TERRAZA 06-07 Transmission; (LH strut tower)
- TRAILBLAZER 06-07 Transmission; (LH engine compartment), (8 cylinder)
- TRAILBLAZER 08-09 Transmission; (LH engine compartment)
- TRAILBLAZER EXT 06 Transmission; (LH engine compartment), (8 cylinder)
- UPLANDER 06-09 Transmission; (LH strut tower)
- VUE 07-08 Transmission; 2.4L, (LH front engine compartment)
- VUE 09 Transmission; 2.4L, w/hybrid, LH side front engine compartment, (shift control)
- VUE 09 Transmission; 2.4L, w/o hybrid; (LH front engine compartment)
- VUE 10 Transmission
- YUKON 07 Transmission; (next to battery)
- YUKON 08 Transmission; (next to battery), w/o auxiliary oil cooler control
- YUKON 09 Transmission; (next to battery), w/o auxiliary oil cooler pump
- YUKON XL 1500 07-08 Transmission; (next to battery)
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
It means we flash the module with your car’s specific Vehicle Identification Number (VIN) and the latest GM software before we ship it. This makes the module recognize your vehicle’s systems, allowing it to work immediately upon installation without any extra steps or expensive programming tools. It’s a true plug-and-play solution.
Do I need to send my old TCM back?
No, there is no core charge or need to return your old part. You can keep it or dispose of it, making the repair process simpler and faster for you.
Will this fix a P0700 trouble code?
A P0700 code is a general fault request from the TCM to the main engine computer (ECM) to turn on the check engine light. It means the TCM has detected a problem. Often, replacing a faulty TCM will resolve the underlying issue causing the P0700 and any other transmission-specific codes.
Is this a difficult part for a DIYer to install?
Not at all. For the Pontiac G5, the TCM is easily accessible in the engine bay. With basic hand tools like a socket set, the physical swap typically takes less than 30 minutes. Since our module is pre-programmed, you skip the most difficult part of the job.
What if my part number is slightly different?
This T42 module is interchangeable with many other GM service numbers, including 24252114, 24234503, and 24242391. As long as your vehicle is on our compatibility list, this module will function as a direct replacement, loaded with the correct software for your VIN.