Restore Smooth, Reliable Shifting to Your Chevrolet Malibu
If you’re dealing with a 2006-2010 Chevrolet Malibu that’s shifting harshly, getting stuck in gear, or throwing transmission-related codes, the problem often points directly to a failing Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen countless drivers worry they need a costly transmission rebuild when the real culprit is this small electronic unit. This T42 TCM, part number 24240400, is the definitive, hassle-free solution to get your Malibu’s automatic transmission operating like new again.
The TCM is the brain of your transmission, responsible for managing every gear change, controlling torque converter lockup, and monitoring system pressures. When it fails, the symptoms can be alarming. This replacement module is built to OEM specifications and comes pre-programmed to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming—it’s a true plug-and-play fix that you can often do yourself in your own driveway.
Case Study: The Malibu That Didn’t Need a New Transmission
A customer brought in their 2009 Malibu, convinced the transmission was shot. It was stuck in 3rd gear (limp mode) and had a Check Engine light on with code P0700. Another shop had quoted them over $3,000 for a transmission replacement. After a quick scan and checking the basics, I suspected the TCM. We swapped in one of our VIN-programmed modules, cleared the codes, and took it for a test drive. The car shifted perfectly. The total repair cost them a fraction of the original quote. It’s a classic example of how correctly diagnosing a faulty 2006-2010 Malibu Transmission Module can save thousands.
Diagnosing a Faulty Malibu TCM
The T42 module in these GM vehicles is known to fail from years of heat cycles and vibration. If your Malibu is experiencing any of the issues below, a failing TCM is the most likely cause. This replacement is engineered to resolve these common problems and restore the communication between your engine and transmission.
Common Signs of a Failing TCM
- ✔️ Harsh, jerky, or delayed gear shifts.
- ✔️ Vehicle is stuck in one gear (often called “limp mode”).
- ✔️ Check Engine Light or Transmission Warning Light is illuminated.
- ✔️ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-specific codes.
- ✔️ Poor acceleration and decreased fuel economy.
- ✔️ The transmission seems to slip out of gear unexpectedly.
- ✔️ Complete loss of communication with the module, preventing shifting.
A Straightforward Guide to Installation
Replacing the 2006-2010 Malibu Transmission Module is a job most DIYers can handle in under an hour with basic hand tools. For the 2006-2010 Malibu, the TCM is typically located on the driver’s side, bolted to the LH frame rail. Follow these steps for a successful installation.
- Safety First: Disconnect the negative terminal from your car’s battery to prevent any electrical shorts and to help reset the system.
- Locate the Module: Find the TCM on the LH frame rail. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical harnesses.
- Reconnect and Verify: Reconnect the negative battery terminal. Start the vehicle and ensure the check engine light is off. A short drive will confirm that shifting has returned to normal. Use a scan tool to clear any lingering codes if necessary.
Verified Vehicle Compatibility
While this page is focused on the 2006-2010 Malibu Transmission Module, this T42 unit is compatible with a wide array of General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E and 4L65E. Please verify your part number (24240400 or an interchange) and vehicle below.
This part fits the following vehicles:
- Chevrolet Malibu (2006-2010) – Transmission; (LH frame rail)
- Chevrolet Cobalt (2006-2010) – Transmission; (LH strut tower)
- Chevrolet HHR (2006-2011) – Transmission; (LH engine compartment)
- Chevrolet Impala (2006-2011) – Transmission; (lower air cleaner housing)
- GMC Canyon (2008-2012) – Transmission; (RH rear engine compartment)
- Pontiac G6 (2006-2010) – Transmission; (LH strut tower)
- Saturn Aura (2007-2009) – Transmission; (LH frame rail front)
- …and many other GM models from 2006-2014. Please see the full fitment list.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. This module comes pre-programmed to your vehicle’s VIN. You provide us with your VIN during checkout, and we handle all the programming before it ships. It arrives ready for a plug-and-play installation, saving you time and money.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the main engine computer (ECM) to turn on the check engine light. While this module often resolves the underlying issue causing the P0700, it’s important to scan for other specific transmission codes (like P0753, P0758, etc.) to confirm the diagnosis.
Is this part difficult to install on a Chevy Malibu?
No, for the 2006-2010 Malibu, the installation is quite straightforward. The TCM is located on the LH frame rail, making it accessible with basic hand tools. Most DIY mechanics can complete the job in under 30-45 minutes.
What is the warranty on this part?
This transmission control module comes with a one-year warranty, giving you peace of mind and confidence in your repair.