Restore Your Yukon’s Smooth, Reliable Performance
Is your 2007-2008 GMC Yukon XL 1500 suffering from harsh, unpredictable shifting, getting stuck in gear, or showing transmission warning lights on the dash? These are classic signs of a failing Transmission Control Module (TCM), a critical component that can sideline your family’s primary vehicle. Don’t let a faulty module compromise your safety and peace of mind. This genuine GM T42 TCM, service number 24252114, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a hassle-free, plug-and-play installation that gets you back on the road with confidence.
Common Symptoms & Your Solution
A failing TCM can manifest in several frustrating ways. If you’re experiencing any of the following, this module is designed to be the direct fix:
- Erratic and Harsh Shifting: Abrupt, jerky gear changes or a feeling of the transmission slipping between gears.
- Limp Mode Activation: The vehicle refuses to shift, often getting stuck in 2nd or 3rd gear, severely limiting speed and performance.
- Delayed Engagement: A noticeable pause when shifting from Park into Drive or Reverse.
- Warning Lights: A persistent Check Engine Light or dedicated transmission warning light, often accompanied by Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related codes.
- Poor Fuel Economy: Inefficient shifting patterns caused by the faulty module can lead to a sudden drop in your vehicle’s MPG.
Installing this professionally programmed 2007-2008 Yukon XL 1500 transmission control module directly addresses the electronic root cause of these issues, restoring the precise communication between your engine and transmission for optimal performance.
Features & Benefits
- ✔ VIN-Programmed for Your SUV: We program this module to your Yukon’s exact Vehicle Identification Number before shipping. This ensures perfect communication with your vehicle’s systems right out of the box, eliminating the need for an expensive programming appointment at a dealership.
- ✔ Restores Smooth Operation: By precisely managing shift points, torque converter lockup, and line pressure, this module restores the smooth, predictable driving experience you expect from your GMC.
- ✔ OEM-Quality and Durability: Built to meet or exceed strict General Motors standards, this T42 module is engineered for long-lasting reliability, ensuring it can handle everything from daily commutes to heavy towing.
- ✔ Direct-Fit Replacement: This unit is a direct replacement for a wide range of service numbers, including 24252114, 24242391, and 24234503, guaranteeing a perfect fit and function.
- ✔ 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: From Frustration to Fix
We recently heard from a customer, Mark, who was about to cancel a family camping trip. His ’08 Yukon XL started slamming into gear and then went into limp mode 100 miles from home. The local shop quoted him a massive bill for diagnostics and a new module, plus a two-day wait for programming. Frustrated, he found us online. We shipped him a pre-programmed 2007-2008 Yukon XL 1500 transmission control module overnight. He installed it himself in under 30 minutes in the campground parking lot. The truck started up, the warning lights were gone, and the transmission shifted perfectly. He saved his vacation and hundreds of dollars, reaffirming that the right part can make all the difference.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM is the electronic brain of your automatic transmission. It receives data from various sensors on the engine and vehicle, and uses that information to control exactly when and how the transmission shifts gears, ensuring smooth operation, optimal performance, and fuel efficiency.
Is this part really plug-and-play?
Yes. Because we program the module to your vehicle’s specific VIN before it ships, it is ready for installation as soon as you receive it. Simply disconnect the battery, swap the modules, reconnect the battery, and you’re ready to go. No additional programming is required.
How do I know if my TCM is the problem?
While the symptoms listed above are strong indicators, the most definitive way is through a professional diagnosis with a high-end scan tool. Common TCM-related trouble codes (DTCs) like P0700 are a clear sign. This 2007-2008 Yukon XL 1500 transmission control module is designed to resolve those electronic faults.
Where is the TCM located on my 2007-2008 Yukon XL 1500?
On the 2007-2008 GMC Yukon XL 1500, the Transmission Control Module is typically located in the engine compartment, mounted next to the battery. Always confirm the location before beginning the replacement.
Do I need to return my old part?
No. This part is sold without a core charge, which means you are not required to send your old, faulty module back to us. This saves you time and return shipping costs.
What if I install this and still have problems?
While this module fixes the most common electronic causes of transmission issues, problems can also be mechanical (e.g., worn clutches, bad solenoids). If issues persist after installation, we recommend a thorough inspection of the transmission’s internal components by a qualified technician.