Restore Smooth Shifting to Your Saturn Vue
If you’re dealing with the headaches of a faulty transmission control module in your 2007-2010 Saturn Vue, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing TCM can make a reliable vehicle feel unpredictable and unsafe. This T42 Transmission Control Module, part number 24256960, is the definitive solution to get your vehicle’s automatic transmission operating like new again. It’s the brain behind your transmission, responsible for managing shift points, torque converter clutch engagement, and line pressure. When it fails, you get the kind of problems that can ruin your day—harsh bangs into gear, getting stuck in limp mode, or a persistent check engine light.
We take the guesswork and extra cost out of the repair. Each module is expertly programmed to your vehicle’s specific VIN before it ships. This means you can skip the expensive trip to the dealership for programming. For a DIY mechanic, this is a straightforward, plug-and-play fix. For a professional shop, it’s a time-saver that gets your customer’s car back on the road faster. This isn’t just a replacement part; it’s a restoration of your vehicle’s performance and your peace of mind. By addressing the core electronic failure, this 2007-2010 Vue TCM helps prevent further mechanical wear and tear on your transmission, potentially saving you from a much costlier repair down the line.
From the Diagnostic Bay
I remember a 2009 Saturn Aura that came into the shop a few years back. The owner was frustrated because the car would intermittently refuse to shift out of 2nd gear, especially after driving for a while on a hot day. Two other shops had quoted her for a full transmission rebuild, suspecting internal damage. After hooking up my scan tool, I noticed communication with the TCM would drop out precisely when the fault occurred. It wasn’t a mechanical failure; the module was failing under heat. We installed a VIN-programmed T42 TCM, just like this one. The total repair time was under 45 minutes. The customer drove away with a perfectly shifting car, having saved thousands of dollars. That’s the power of accurate diagnosis and a quality, pre-programmed part.
Is Your Saturn Vue Showing These Telltale Signs?
A failing TCM often gives clear warnings. If you’re experiencing any of the following, it’s a strong indicator that your module needs attention. Addressing it early with a new 2007-2010 Vue TCM can prevent more severe transmission damage.
- ✔ Sudden, harsh shifting or a noticeable bang when the transmission changes gears.
- ✔ The vehicle enters “limp mode,” often stuck in 2nd or 3rd gear, with limited power.
- ✔ The Check Engine Light or a dedicated transmission warning light is illuminated on your dash.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as the general code P0700, or specific solenoid codes like P0750, P0751, P0752, etc.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ A significant drop in fuel economy as the transmission isn’t shifting efficiently.
DIY-Friendly Installation: A Step-by-Step Guide
Replacing the TCM is a manageable job for most home mechanics. With basic hand tools, you can have this installed in under 30 minutes. The location varies slightly by model, but it’s typically easy to access in the engine bay.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s computer systems.
- Locate the Module: On the Saturn Vue, the TCM is typically found in the LH front of the engine compartment. On other GM models, it might be near the battery, under the air cleaner box, or on the LH strut tower.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely plug in the electrical connectors, making sure they click to confirm a solid connection.
- Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and check for any warning lights. It’s a good practice to use a basic OBD2 scan tool to clear any stored fault codes after the installation is complete.
Confirmed Vehicle Compatibility List
This T42 TCM is a direct-fit replacement for a wide range of General Motors vehicles. While this listing is focused on the 2007-2010 Vue TCM, please verify your model and year in the list below. This module is interchangeable with part numbers 24252114, 24234503, 24256960, and others.
- Saturn Vue: 2007-2008 (2.4L), 2009 (2.4L), 2010
- Chevrolet: Cobalt (06-10), HHR (06-11), Impala (06-11), Malibu (06-10), Monte Carlo (06-07), Silverado (07-13), Tahoe (07-09), Express Van (06-14), and more.
- GMC: Sierra (07-13), Yukon (07-09), Savana Van (06-14), Envoy (06-09), Canyon (08-12).
- Pontiac: G5 (07-10), G6 (06-10), Grand Prix (06-08), Pursuit (06), Montana (06-09).
- Buick: LaCrosse (06-09), Lucerne (06-11), Allure (06-09), Rainier (06-07).
- Cadillac: DTS (06-11)
- Hummer: H3 (08-10)
- Saab: 9-7X (06-09)
Frequently Asked Questions
What does a VIN-programmed TCM mean for me?
It means the module arrives ready for installation with no extra steps. We load your vehicle’s specific software onto the module using your VIN before shipping. This ensures perfect communication with your engine computer and other systems, avoiding the need for an expensive programming service at a dealership.
Is this a difficult part to install myself?
Not at all for most DIYers. The TCM is usually located in an accessible spot in the engine bay and is held on by a few bolts. The most important part is carefully releasing the locking tabs on the electrical connectors. With basic tools, it’s typically a job that takes less than half an hour.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem and has requested the check engine light be turned on. While this module often resolves the root cause (like internal failure or solenoid driver faults), P0700 can also be triggered by wiring or sensor issues. However, if you have P0700 combined with shifting problems, a faulty TCM is the most common culprit.
Do I need to send my old module back?
No, there is no core charge for this part. You can keep your old module or dispose of it, making the transaction simple and hassle-free.
How do I know this is the right part for my vehicle?
The best way is to match the part number from your original module to one of the interchangeable numbers listed (e.g., 24256960, 24252114). You can also use our vehicle fitment list or contact our expert support team with your VIN, and we’ll be happy to confirm compatibility for you.