Programmed 2006-2008 Grand Prix TCM 24238856 | Plug & Play

### Programmed 2006-2008 Grand Prix TCM 24238856 \| Plug & Play   ## End Transmission Frustration in Your Grand Prix Is your 2006-2008 Pontiac Grand Prix suffering from harsh, erratic shifting, getting stuck in gear, or flashing a check engine light? A failing Transmission Control Module (TCM) is a common cause, turning your reliable sedan into a source of constant worry. This expertly prepared T42 TCM is the definitive, plug-and-play solution designed to restore your car’s smooth performance and your peace of mind. By arriving pre-programmed to your vehicle’s specific VIN, it eliminates the need for an expensive and time-consuming trip to the dealership for programming. ### Common Symptoms & Your Solution If you’re experiencing any of the following issues, a faulty TCM is the likely culprit. This module is engineered to be the direct solution for: - Abrupt, harsh, or delayed gear shifts - The vehicle being stuck in “limp mode” (usually 2nd or 3rd gear) - Active Check Engine Light or Transmission Warning Light - Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults - Failure to upshift or downshift properly, leading to poor acceleration and fuel economy - Complete loss of communication with the transmission Installing this **Programmed 2006-2008 Grand Prix TCM** directly addresses the electronic source of these problems, restoring the precise communication needed for optimal transmission function. ### Features & Tangible Benefits - ✔ **100% VIN Programmed:** Arrives ready for installation with the latest GM software updates tailored to your specific vehicle. This ensures perfect compatibility and performance right out of the box, saving you hundreds in dealership programming fees. - ✔ **Restored Drivability:** By precisely managing shift points, torque converter lockup, and line pressure, this module ensures your transmission operates with the smoothness and efficiency you expect. - ✔ **A Lasting Solution:** Built to meet or exceed strict OEM quality standards, this module provides a dependable, long-term fix for common transmission electronic failures. - ✔ **Broad Compatibility:** A direct replacement for a wide range of part numbers, including **24252114**, **24234503**, **24230461**, and **24238856**, ensuring a perfect fit. - ✔ **Warranty Protection:** This unit is backed by our one-year replacement warranty. - ✔ **No Core Charge:** Keep your old part without the hassle or expense of returning a core, simplifying your repair process. #### Expert Insight: Why VIN Programming is Non-Negotiable On modern GM vehicles, the TCM isn’t just a generic computer; it’s the transmission’s brain, loaded with software specific to your car’s unique configuration—including its engine size, axle ratio, and even tire diameter. A non-programmed or incorrectly programmed module can lead to persistent shifting issues, incorrect speedometer readings, and even new error codes. Our process ensures your new **Programmed 2006-2008 Grand Prix TCM** has the exact software calibration from GM, making the installation as simple as swapping the part and clearing any old codes. ### Frequently Asked Questions **What exactly does a VIN-programmed TCM do?** VIN programming loads your vehicle’s specific factory software and calibrations onto the TCM before it ships. This ensures the module works perfectly with your Grand Prix’s engine, transmission, and other systems without needing any additional setup from a dealership, saving you time and money. **Is this a difficult part to install?** For most 2006-2008 Grand Prix models, the TCM is located in the engine bay under the air cleaner housing. The installation is straightforward for a DIYer with basic tools and typically takes under an hour. Simply disconnect the battery, unplug the old module, install the new one, and reconnect everything. **Will this fix a P0700 trouble code?** A P0700 code is a general transmission fault request from the TCM to the main engine computer to turn on the check engine light. While this module often resolves the underlying issue causing the P0700, it’s crucial to diagnose any other codes that are present. In many cases where the TCM is faulty, replacing it is the correct fix. **Do I need to send my old part back?** No. We do not require a core return for this part. You can keep or dispose of your old module without any additional charges or hassle. **How do I know this is the right TCM for my Grand Prix?** This T42 TCM is the correct module for 2006-2008 Pontiac Grand Prix models. By providing your VIN during checkout, we guarantee it will be programmed correctly for your specific vehicle, ensuring a perfect match and proper function. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it. ### Shipping - **Processing Time:** Reliably shipped within 2-3 business days. ### Warranty Enjoy peace of mind with a **one-year replacement warranty** on this part, effective from the date you receive it. Labor costs are not covered. If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience. **Return Address:** **Highway71autoparts** **9131 Highway 71 NE** **Spicer, MN, 56288**

• Country of Origin: United States
• Manufacturer Part Number: 24238856
• Superseded Part Number: 24230461, 24234274, 24235340, 24235732, 24235753, 24235754, 24238856, 24239224, 24239926, 24240400, 24240449, 24241806, 24243901, 24243921, 24252114, 24255280, 24256960, YNXS, 24234503
• Manufacturer Warranty: 1 Year
• Genuine OEM: Yes
• Brand: GM
• Year: 2008
• Model: Grand Prix
• Hardware Type: T42
• Interchange Part Number: 591-07270