Restore Your Monte Carlo’s Shifting Performance
Is your 2006-2007 Chevrolet Monte Carlo suffering from erratic shifting, getting stuck in gear, or displaying a check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating smooth gear changes, managing torque converter lockup, and ensuring overall powertrain efficiency. When it fails, it can mimic the symptoms of a major mechanical transmission problem, leading to frustrating and often incorrect diagnoses. This genuine quality GM T42 TCM, service number 24235753, is the definitive solution to restore your vehicle’s drivability and peace of mind.
The Critical Advantage: VIN-Programmed for Your Vehicle
Unlike generic modules that require expensive and time-consuming trips to a dealership for programming, this TCM arrives at your door fully programmed to your Monte Carlo’s specific Vehicle Identification Number (VIN). We load the latest GM software updates before shipping, ensuring that the module is a true plug-and-play component. This process synchronizes the TCM with your car’s engine control unit (ECU) and other systems, guaranteeing optimal shift points, fuel economy, and electronic communication right out of the box. Simply install the part, and you’re ready to drive.
We had a 2007 Monte Carlo SS come into the shop with the customer convinced his 4L65E transmission was shot. It was banging into gear and would intermittently get stuck in 3rd (limp mode). He had already gotten a quote for several thousand dollars for a transmission rebuild. We hooked up our scan tool and found a P0700 code along with several solenoid circuit faults. Instead of jumping to conclusions, we checked the TCM connectors and wiring first—all good. The symptoms pointed directly to an internal failure in the original module. We installed one of our VIN-programmed T42 TCMs. After a 20-minute installation and clearing the codes, the car shifted like it just rolled off the factory floor. The customer saved thousands and drove away with a perfectly functioning car, all thanks to correctly diagnosing the electronics first.
Symptoms of a Failing 2006-2007 Monte Carlo TCM
- ✔ Harsh Shifting: Abrupt, jerky, or banging sensations when the transmission shifts up or down.
- ✔ Delayed Engagement: A noticeable pause when shifting from Park into Drive or Reverse.
- ✔ Stuck in Limp Mode: The vehicle refuses to shift out of a single gear (often 2nd or 3rd) to protect the transmission from further damage.
- ✔ Warning Lights: Illumination of the Check Engine Light or a dedicated transmission warning light on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): Scan tools may show codes like P0700 (Transmission Control System Malfunction), P0750-P0774 (Shift Solenoid Errors), or other transmission-related faults.
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation can lead to a sudden drop in your MPG.
- ✔ No Communication: In severe cases, a scan tool may be unable to communicate with the TCM at all, indicating a complete failure.
Simple Installation, Lasting Results
This T42 TCM is designed for a straightforward installation. On the 2006-2007 Monte Carlo, it is typically located under the lower air cleaner housing, making it accessible in your own garage. The process generally takes less than 30 minutes. Always remember to disconnect the vehicle’s battery before beginning the replacement to ensure the system resets properly. After installing the new module and reconnecting the battery, use a standard OBD2 scan tool to clear any stored diagnostic trouble codes. With no core charge, you don’t have to worry about the hassle and expense of sending your old part back.
Built to meet and exceed original equipment specifications, this module is backed by a one-year warranty for your confidence. It is a direct interchange for a wide range of part numbers, including 24252114, 24234503, 24230461, and more, ensuring broad compatibility across the GM family of vehicles. Don’t let a faulty electronic module sideline your car. Restore its performance and reliability with this pre-programmed, ready-to-install solution.
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. We program the module to your vehicle’s VIN before it ships. This makes it a true plug-and-play installation, saving you the time, cost, and hassle of a dealership visit.
Where is the TCM located on my 2006-2007 Monte Carlo?
On this specific model, the Transmission Control Module is typically found attached to the lower air cleaner housing in the engine bay. Always consult a vehicle-specific repair manual if you are unsure.
Will this fix transmission codes like P0700?
Yes, a faulty TCM is a very common cause for a P0700 code, which is a general transmission fault code, as well as more specific solenoid and sensor codes. Replacing a failed module with this programmed unit will resolve these electronic faults.
Is this compatible with other GM vehicles?
Absolutely. While this listing is focused on the Monte Carlo, the T42 TCM was used in a vast number of GM vehicles from 2006-2014, including the Impala, Silverado, Tahoe, GMC Sierra, Buick LaCrosse, and many others with 4-speed automatic transmissions like the 4L60E and 4L65E.
What is a core charge? Do I need to send my old part back?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item, so you can keep your old module without any extra fees or hassle.