Restore Peak Performance to Your GMC Acadia
Is your 2007-2008 GMC Acadia suffering from frustrating and unpredictable issues? A flashing Check Engine Light, rough idling, stalling, or a complete no-start condition can often be traced back to a failing Engine Control Module (ECM). As the central computer of your vehicle, a faulty ECM can disrupt everything from fuel delivery and ignition timing to transmission shifting. This isn’t just an inconvenience; it affects your vehicle’s reliability, fuel economy, and safety. I’ve seen countless vehicles in my bay with these exact symptoms, and a correctly programmed ECM is the definitive solution.
This isn’t a generic, one-size-fits-all part. We provide a fully programmed 2007-2008 Acadia Engine Module specifically for your vehicle. Simply provide your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest GM-certified software. This critical step ensures seamless communication with your vehicle’s other systems, eliminating the need for an expensive trip to the dealership for programming. You get a part that’s ready to install right out of the box, saving you time, money, and diagnostic headaches.
Case Study: The Intermittent Acadia
A customer brought in a 2008 Acadia that would randomly lose power and display a ‘Service StabiliTrak’ message. Two other shops had replaced sensors without success. My scan tool showed intermittent communication loss codes (U0100) with the ECM. After confirming power and ground to the module were solid, I suspected an internal ECM failure, common when exposed to heat cycles. We installed a VIN-programmed module, performed the security relearn, and the problem was solved permanently. The customer was thrilled to have their reliable family vehicle back.
Common Signs of a Failing ECM
- ✔ Check Engine Light is illuminated with communication codes (e.g., U0100) or internal processor codes (P0601, P0606).
- ✔ The engine cranks but will not start.
- ✔ Noticeable drop in fuel efficiency.
- ✔ Rough or inconsistent engine idling and stalling.
- ✔ Transmission shifting problems or harsh engagement.
- ✔ Failure to pass state emissions testing.
- ✔ Seemingly unrelated warning lights appearing on the dash.
A Straightforward Guide to Installation
Replacing the ECM on your Acadia is a manageable job for a confident DIYer. The module is typically located behind the cooling fan shroud.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On the 2007-2008 Acadia, you’ll find the ECM mounted behind the engine cooling fan shroud. You may need to remove a few clips or bolts to access it.
- Disconnect Connectors: Carefully unlatch and remove the electrical connectors from the old module. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure the bolts.
- Reconnect Everything: Plug the electrical connectors firmly into the new module. Reconnect the negative battery terminal.
- Perform Security Relearn: You may need to perform a simple security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Consult your owner’s manual or a reliable online resource for the specific steps for your vehicle.
Verified Vehicle Compatibility
This ECM, part number 12590032, is a direct replacement for a wide range of GM vehicles. It is interchangeable with service numbers 12602044, 12603530, 12605843, 12607096, 12630457, and 19210737. While it fits the 2007-2008 Acadia Engine Module, please verify fitment for the extensive list of other models below. The most accurate way to ensure compatibility is by matching your existing part number or providing us with your VIN.
COLORADO 08 Electronic Control Module; (RH firewall)
ENVOY 07-08 Electronic Control Module; 5.3L (LH engine)
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 19210737
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
XLR 09 Electronic Control Module; (RH front engine compartment), ID 12607096
AURA 08-09 Electronic Control Module; (RH firewall), 2.4L, w/hybrid
DTS 06 Electronic Control Module
DEVILLE 05 Electronic Control Module; (LH engine compartment), ID 12590032
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12605843
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.5L
LACROSSE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
STS 06 Electronic Control Module; (LH frame rail), 4.4L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12636660
UPLANDER 09 Electronic Control Module; (LH engine compartment), (3.9L)
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 19210737
SAAB 9-7X 07 Electronic Control Module; (LH engine), 8 cylinder
TRAILBLAZER 07 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 19210737
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 12607096
MONTE CARLO 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
RAINIER 07 Electronic Control Module; (LH engine), 5.3L
ISUZU ASCENDER 08 Electronic Control Module; (4.2L, LH engine), ID 12607096
CTS 06 Electronic Control Module; (RH engine compartment), V-Series, ID 12603530
STS 08 Electronic Control Module; (LH frame rail), 4.6L
G6 06 Electronic Control Module; (LH front engine compartment), ID 12603530
G6 08 Electronic Control Module; (LH front engine compartment), 3.6L
ION 06 Electronic Control Module; 2.4L (opt LE5)
MALIBU 06 Electronic Control Module; 3.9L
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 2.4L, w/hybrid
RELAY 06 Electronic Control Module; (LH engine compartment), 3.9L
VUE 08-09 Electronic Control Module; 2.4L, VIN Z (8th digit, opt LAT)
OUTLOOK 08 Electronic Control Module; (behind fan shroud)
SOLSTICE 06 Electronic Control Module; (LH front frame rail)
VUE 08 Electronic Control Module; 3.6L
VUE 09 Electronic Control Module; 3.6L, VIN 7 (8th digit, opt LY7)
ACADIA 07-08 Electronic Control Module; (behind fan shroud), ID 12607096 (ECM)
AURA 08-09 Electronic Control Module; (RH firewall), 3.6L
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 19210737
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12603530
GRAND PRIX 08 Electronic Control Module; (lower air cleaner box), 5.3L
HHR 06 Electronic Control Module; (LH rear engine compartment), 2.4L
STS 08 Electronic Control Module; (LH frame rail), 4.4L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12590032
ISUZU I-290 08 Electronic Control Module; (RH firewall)
LUCERNE 06 Electronic Control Module; (lower part of air cleaner box), 4.6L
MALIBU 09-10 Electronic Control Module; 2.4L, w/hybrid
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 19210737
IMPALA 06 Electronic Control Module; (lower part of air cleaner box), 3.9L
MONTANA 06 Electronic Control Module; (LH engine compartment), (SV6), 3.9L
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 19210737
ENVOY 08 Electronic Control Module; 4.2L (LH engine), ID 12636660
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12602044
TRAILBLAZER 08 Electronic Control Module; (LH engine), ID 12607096
TRAILBLAZER 09 Electronic Control Module; (LH engine), 4.2L
CANYON 08 Electronic Control Module; (RH firewall)
COBALT 06 Electronic Control Module; (LH front engine compartment), 2.4L (VIN B, 8th digit, 4-146)
ISUZU I-370 08 Electronic Control Module; (RH firewall)
MALIBU 09 Electronic Control Module; 3.6L
SRX 08 Electronic Control Module; (LH engine compartment), (4.6L)
SAAB 9-7X 08 Electronic Control Module; (LH engine), 5.3L
ENCLAVE 08 Electronic Control Module; (behind fan shroud), ID 12607096
G6 09 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
IMPALA 08-09 Electronic Control Module; (lower part of air cleaner box), 5.3L
XLR 06 Electronic Control Module; (RH front engine compartment), 4.4L
XLR 08 Electronic Control Module; (RH front engine compartment)
ENVOY 09 Electronic Control Module; (LH engine), 4.2L
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12607096
G6 07 Electronic Control Module; (LH front engine compartment), 3.6L, ID 12618163
LUCERNE 08 Electronic Control Module; (lower part of air cleaner box), 4.6L, ID 19210737
MONTANA 08-09 Electronic Control Module; (LH engine compartment)
PURSUIT 06 Electronic Control Module; (LH front engine compartment), 2.4L
VUE 10 Electronic Control Module; 3.6L
ACADIA 08 Electronic Control Module; (behind fan shroud), ID 19210737 (PCM)
DTS 08 Electronic Control Module
TERRAZA 06 Electronic Control Module; (LH engine compartment), 3.9L
TRAILBLAZER 07 Electronic Control Module; (LH engine), 6.0L
SAAB 9-7X 08 Electronic Control Module; (LH engine), 6.0L
HUMMER H3 08 Electronic Control Module; (RH firewall)
MALIBU 08 Electronic Control Module; new style (emblem in bumper cover), 3.6L
UPLANDER 08 Electronic Control Module; (LH engine compartment), (3.9L), ID 12607096
UPLANDER 06 Electronic Control Module; (LH engine compartment), 3.9L
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the ECM with the exact software and calibrations for your specific vehicle. This ensures correct engine and transmission operation, and compatibility with features like cruise control and anti-theft systems.
Is this part ready to install?
Yes, once we program it with your VIN, it is ready for physical installation. In some cases, a simple ‘security relearn’ procedure is required after installation, which you can do yourself without special tools.
Will this fix my ‘No Start’ problem?
A faulty ECM is a very common cause of a ‘crank, no start’ condition. If you’ve ruled out basics like the battery, starter, and fuel pump, the ECM is the next logical component to inspect. This part is designed to resolve such issues when the ECM is the root cause.
What does ‘interchangeable’ mean?
GM uses several different service numbers for the same physical part over its production life. The numbers listed (12602044, 12603530, etc.) are all functionally identical to 12590032 when programmed correctly for your vehicle.
Do I need a professional mechanic to install this?
While professional installation is always an option, many of our customers are DIY enthusiasts who successfully install these modules themselves. If you are comfortable with basic hand tools and following instructions, you can likely perform the replacement.