Restore Your Vehicle’s Performance and Reliability
Is your 2007 Pontiac Grand Prix, or another compatible GM vehicle, suffering from frustrating and hard-to-diagnose issues? Symptoms like a persistent check engine light, erratic shifting, poor fuel economy, or even a no-start condition can often be traced back to a single, critical component: the Powertrain Control Module (PCM). As the central computer for your engine and transmission, a failing PCM can wreak havoc on your vehicle’s entire operation, leaving you stranded and facing costly dealership repairs.
This genuine used GM PCM, part number 19210736 (interchangeable with 12605843), is the definitive solution to get your car running right again. We take the guesswork and high cost out of the equation. Before this module ships, our technicians will program it with the latest official GM software updates, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This ensures seamless integration and restores the precise performance and efficiency your car had when it left the factory.
From the Diagnostic Bay
I once had a 2007 Impala with the 5.3L V8 come into the shop with a complaint of intermittent stalling and harsh shifting. The owner had already replaced the throttle body and two O2 sensors at another shop, spending over $600 with no improvement. After hooking up our professional scan tool, I noticed the data stream for the transmission solenoids was dropping out intermittently. It wasn’t a faulty solenoid; the PCM itself was failing and no longer providing a stable command signal. We installed a VIN-programmed PCM just like this one, performed a quick security relearn, and the car ran perfectly. It’s a classic case where chasing symptoms costs more than fixing the root cause—the faulty engine computer.
Common Symptoms of a Failing Engine Computer
- ✔ Persistent Check Engine Light (CEL) with communication-related trouble codes (e.g., U-codes).
- ✔ Unpredictable or harsh automatic transmission shifting.
- ✔ Engine misfires, stumbling, or rough idling.
- ✔ Complete no-start condition where the engine cranks but will not fire up.
- ✔ A sudden, unexplained drop in fuel mileage.
- ✔ Failure to pass state emissions tests.
- ✔ Intermittent electrical issues that seem to have no other cause.
- ✔ Loss of communication with diagnostic scan tools.
Your Direct-Fit Programmed 2007 Grand Prix PCM Solution
Don’t settle for a generic, unprogrammed module that requires an expensive trip to the dealership. This unit offers a complete, ready-to-install solution. By providing us with your VIN during checkout, you ensure that the module you receive is perfectly calibrated for your vehicle’s specific engine, transmission, and emissions equipment. This is a crucial step for modern vehicles, as an improperly programmed module can cause more problems than it solves. This unit, sourced from a functional, salvaged vehicle, provides OEM reliability without the OEM price tag.
Installation & Setup
For the 2007 Grand Prix, this module is typically located in the lower air cleaner box. While installation is a straightforward unbolt-and-replace process, please remember to disconnect the battery first. After installation, you may need to perform a simple security relearn procedure (often called a Passlock or anti-theft relearn) to allow the vehicle to start. This procedure syncs the new PCM with your vehicle’s anti-theft system and can usually be done without special tools. In some cases, a Crankshaft Position Sensor (CASE) relearn may be needed, which requires a capable bidirectional scan tool.
Extensive GM Vehicle Compatibility
While this is a perfect fit for the 2007 Grand Prix with the 5.3L engine, this versatile module also fits a wide range of other 2007 GM vehicles. Please verify your part number and specific vehicle options from the list below:
- Acadia: (behind fan shroud), ID 19210736 (PCM)
- Aura: (RH firewall), 2.4L & 3.6L
- Cobalt: (LH front engine compartment), 2.4L
- CTS: (RH engine compartment), V-Series
- DTS: Electronic Control Module
- G5: (LH front engine compartment), 2.4L
- G6: (LH front engine compartment), 2.4L & 3.6L (ID 19210736)
- HHR: (LH rear engine compartment), 2.4L
- Impala: (lower part of air cleaner box), 5.3L
- Ion: 2.2L & 2.4L
- Lucerne: (lower part of air cleaner box), 4.6L
- Montana: (LH engine compartment)
- Monte Carlo: (lower part of air cleaner box), 5.3L
- Outlook: (behind fan shroud)
- Relay: (LH engine compartment)
- Sky: (LH front frame rail), 2.4L
- Solstice: (LH front frame rail), 2.4L
- SRX: (LH engine compartment), 4.6L
- STS: (LH frame rail), 4.4L & 4.6L
- Terraza: (LH engine compartment), 3.9L
- Uplander: (LH engine compartment), 3.9L
- Vue: 2.4L
- XLR: (RH front engine compartment)
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to load the correct GM-certified software and calibrations for your specific engine, transmission, and options. This ensures the module works perfectly with your vehicle right out of the box.
Is this part truly plug-and-play?
For the most part, yes. It arrives programmed and ready for installation. However, due to GM’s anti-theft systems, you will likely need to perform a security relearn procedure after installation to allow your vehicle to start. This process can typically be done without special tools and instructions are widely available online.
What is a CASE relearn and will I need one?
A CASE (Crankshaft Angle Sensor Error) relearn synchronizes the new PCM with your engine’s crankshaft position sensor. This is sometimes required to clear certain check engine light codes after a PCM replacement. This procedure must be done with a bidirectional scan tool.
How can I be sure this used part is reliable?
This module is a genuine OEM part sourced from a functional, salvaged vehicle. Unlike many aftermarket parts, it’s built to GM’s original quality standards. We verify that each unit accepts programming before it is shipped to you, ensuring its core functions are operational.
What happens if I forget to provide my VIN?
We cannot ship the module without your VIN. Programming is a mandatory part of our service to ensure you receive a functional part. We will contact you after your purchase to remind you if the VIN is missing from your order details.