Restore Flawless Shifting to Your Suburban 1500
Is your 2007 or 2008 Chevrolet Suburban 1500 suffering from erratic shifting, getting stuck in gear, or displaying a check engine light related to the transmission? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change, managing torque converter lockup, and monitoring system health. When it fails, it can leave your reliable SUV feeling unpredictable and unsafe. This OEM-quality T42 TCM, part number 24241806, is the definitive solution to restore your vehicle’s factory performance and drivability.
From the Diagnostic Bay
We had a 2008 Suburban 1500 towed in last month. The owner was frustrated because it was stuck in what felt like third gear (limp mode) and had a persistent P0700 code. He’d already replaced a shift solenoid with no luck. After a quick scan, we confirmed communication with the TCM was intermittent. Instead of a costly diagnostic rabbit hole, we recommended this VIN-programmed module. The installation took less than 20 minutes right there in the engine bay. After reconnecting the battery and clearing the codes, the truck shifted perfectly on the test drive. The customer drove away with a smooth-running vehicle, saving hundreds compared to a dealership visit.
Diagnosing a Faulty 2007-2008 Suburban 1500 TCM
A failing TCM can manifest in various ways, often mimicking internal transmission problems. Before condemning expensive hard parts, it’s crucial to evaluate the module. The electronic components within the TCM can degrade over time due to heat and vibration, leading to faulty calculations and commands. This results in poor communication between the engine computer, the transmission sensors, and the hydraulic solenoids that physically change the gears. Our replacement 2007-2008 Suburban 1500 TCM is engineered to solve these communication breakdowns permanently.
Symptoms of a Failing Transmission Control Module
- ✔ Harsh Shifting: Abrupt, jerky, or slamming gear changes during acceleration or deceleration.
- ✔ Delayed Engagement: A noticeable pause when shifting from Park into Drive or Reverse.
- ✔ Limp Mode: The vehicle gets stuck in a single gear (usually 2nd or 3rd) to prevent further damage.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light illuminates on the dash.
- ✔ Diagnostic Trouble Codes (DTCs): Common codes include P0700 (Transmission Control System Malfunction) and various solenoid-specific codes (e.g., P0751, P0756).
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation can lead to a sudden drop in MPG.
- ✔ No Shifting: The transmission may refuse to upshift or downshift at all.
The Plug-and-Play Advantage: Pre-Programmed for Your VIN
The single biggest hurdle when replacing a modern vehicle module is programming. Dealerships charge significant fees to program a new module to your vehicle. We eliminate that step entirely. Simply provide your Vehicle Identification Number (VIN) at checkout, and we will program this module with the latest GM software specific to your 2007-2008 Suburban 1500. This ensures it works seamlessly with your engine, ABS, and other systems right out of the box. No trips to the dealer, no expensive scan tools required—just a straightforward installation.
This module is a direct replacement for a wide range of GM part numbers, including: 24252114, 24234503, 24230461, 24234274, 24235340, 24235754, 24238856, 24239224, 24239926, 24240400, 24241806, 24243901, and more. It is designed to meet or exceed original equipment standards, providing a reliable and lasting repair.
Frequently Asked Questions
What does a ‘VIN-programmed’ TCM mean?
It means we load the module with the specific software and calibration files from General Motors that match your vehicle’s exact build, including engine size, axle ratio, and tire size. This makes the module a true plug-and-play part, eliminating the need for dealership programming.
Do I need to visit a dealer after installing this part?
No. Because the module arrives pre-programmed to your VIN, no further programming or setup is required. The installation can be completed by a competent DIYer or any independent mechanic.
Where is the TCM located on a 2007-2008 Suburban 1500?
On the 2007-2008 Suburban 1500, the T42 Transmission Control Module is typically located in the engine compartment, mounted next to the battery. Always disconnect the battery’s negative terminal before starting the replacement.
Will this part fix a P0700 trouble code?
A P0700 code is a general fault code indicating that the TCM has detected a problem and has requested the check engine light be turned on. While this module can resolve the root cause, it’s essential to scan for other transmission-specific codes (P07xx) to confirm the TCM is the issue. In many cases, replacing a faulty TCM will clear the P0700 and related codes.
Is there a core charge for this module?
No, we do not require a core charge. You can keep your old part, eliminating the hassle and expense of shipping it back.