Is your 2008 GMC Yukon leaving you stranded or guessing what that glowing check engine light means? A failing Engine Control Module (ECM) can turn a reliable truck into a source of constant frustration, causing everything from rough idling and poor fuel economy to unpredictable stalling. It’s the brain of your vehicle, and when it’s not functioning correctly, nothing else will. Put an end to the guesswork and expensive dealership diagnostics with our professionally programmed ECM, designed to restore your Yukon’s performance and your peace of mind.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take your vehicle’s unique Vehicle Identification Number (VIN) and flash this module with the latest, most stable software updates directly from GM. This critical step ensures that the ECM communicates perfectly with your truck’s specific systems—the engine, transmission, anti-lock brakes, and more—right out of the box. You get a component that is precisely matched to your vehicle’s factory settings, restoring the smooth, efficient operation you depend on.
Warning Signs and How to Overcome Them
If you’re experiencing any of the following, a faulty ECM is a likely culprit. Replacing it can resolve these frustrating issues:
- ✔ Check Engine Light: Persistent illumination, often with codes like P0601, P0606, or other communication errors.
- ✔ Poor Performance: Noticeable loss of power, hesitation during acceleration, or a significant drop in fuel efficiency.
- ✔ Erratic Shifting: The transmission may shift harshly, late, or seem to hunt for the right gear.
- ✔ Stalling or No-Start: The engine may stall unexpectedly while driving or fail to start at all, even with a good battery and starter.
- ✔ Communication Issues: Your scan tool may be unable to communicate with the module, indicating a total failure.
Guided Installation to Restore Peace of Mind
You don’t need to be a master mechanic to complete this job. Our pre-programmed module makes the process straightforward. Follow these steps for a confident fix:
- Safety First: Begin by disconnecting the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Old Module: On your 2008 Yukon, the ECM is typically found in the engine compartment, on the driver’s side, under the battery tray.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old ECM. Then, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New ECM: Mount your new, pre-programmed module in the same location. Secure the bolts and firmly reconnect the electrical harnesses. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Perform Security Relearn: Your vehicle’s anti-theft system will need to sync with the new ECM. This simple procedure, often called a ‘key-cycle relearn,’ typically takes about 30 minutes and can be done without any special tools. Instructions are widely available online or in your owner’s manual.
A Mechanic’s Note
Before you install your new 2008 Yukon ECM, take a moment to inspect the electrical connectors for any signs of corrosion, moisture, or bent pins. A poor connection is a common cause of ECM failure. Cleaning the harness terminals with a quality electronics cleaner can prevent future issues and ensure your new module has a perfect connection from the start. A little prep work goes a long way in guaranteeing a successful, long-lasting repair.
Tailored Fit for Your Ride
This module is a direct replacement for part number 12617568 and is also compatible with 12612384 and 12622141. It is guaranteed to fit the following models and options:
AURA 08 Electronic Control Module; (RH firewall), 3.5L
CAPRICE 11 Electronic Control Module; ID 12612384
CORVETTE 08-09 Electronic Control Module; (RH engine compartment)
CTS 08 Electronic Control Module; (RH front engine compartment), (3.6L), VIN 7 (8th digit), ID 12612384
EQUINOX 08-09 Electronic Control Module; (LH engine compartment), 3.4L
ESCALADE 08 Electronic Control Module; (LH front under battery)
ESCALADE ESV 08 Electronic Control Module; (LH front under battery)
ESCALADE EXT 08 Electronic Control Module; (LH front under battery)
EXPRESS 1500 VAN 08 Electronic Control Module; (LH rear engine compartment), 5.3L
EXPRESS 2500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
EXPRESS 3500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
G6 08 Electronic Control Module; (LH front engine compartment), 3.5L or 3.9L
HUMMER H2 08 Electronic Control Module; (LH front under battery)
IMPALA 08 Electronic Control Module; (lower part of air cleaner box), 3.5L or 3.9L
MALIBU 08 Electronic Control Module; classic or new style, 3.5L
SAVANA 1500 VAN 08 Electronic Control Module; (LH rear engine compartment), 5.3L
SAVANA 2500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
SAVANA 3500 VAN 08 Electronic Control Module; (LH rear engine compartment), gasoline
SIERRA 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/o 4.3L
SIERRA 2500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
SIERRA 3500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
SIERRA DENALI 08 Electronic Control Module; (LH front engine compartment)
SILVERADO 1500 PICKUP 08 Electronic Control Module; (LH front under battery), w/o 4.3L
SILVERADO 2500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
SILVERADO 3500 PICKUP 08 Electronic Control Module; (LH front under battery), 6.0L
SUBURBAN 1500 08 Electronic Control Module; (LH front under battery)
SUBURBAN 2500 08 Electronic Control Module; (LH front under battery)
TAHOE 08 Electronic Control Module; (LH front under battery), w/o hybrid option
TORRENT 08-09 Electronic Control Module; (LH engine compartment), 3.4L
VUE 08-09 Electronic Control Module; 3.5L
YUKON 08 Electronic Control Module; (LH front under battery), w/o hybrid option
YUKON XL 1500 08 Electronic Control Module; (LH front under battery)
YUKON XL 2500 08 Electronic Control Module; (LH front under battery)
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit VIN, or include it in the ‘notes’ section at checkout. We cannot program and ship your module without it.
Will I need to do anything after installing this module?
Yes. While the main programming is done for you, you will need to perform a simple ‘Security Relearn Procedure’ so the module can sync with your vehicle’s anti-theft system. This process requires no special tools and typically involves a series of key turns. Instructions are readily available online for your specific model.
Is this a brand new part?
This is a high-quality, genuine OEM component that has been meticulously inspected, tested, and prepared to meet or exceed original factory specifications. It is programmed with the latest software for optimal performance.
What if my original part number doesn’t match exactly?
This module, part #12617568, is a direct replacement for several part numbers, including 12612384 and 12622141. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.
What is the primary benefit of getting a pre-programmed ECM?
The main benefit is saving time and money. A pre-programmed 2008 Yukon ECM allows you to avoid a costly trip to the dealership for programming, which often involves towing fees and high labor rates. It turns a complex electronic repair into a much simpler, direct-replacement job you can do yourself.