Restore Peak Performance to Your 2017 GMC Yukon
Is your GMC Yukon or other GM vehicle suddenly running rough, refusing to start, or showing a persistent check engine light? A failing Engine Control Module (ECM), the brain of your vehicle’s engine, is often the culprit. I’ve seen it countless times in my 20+ years of diagnostic work: intermittent stalls, poor fuel economy, and a host of confusing error codes all pointing back to a faulty ECM. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s reliability and performance. This replacement 2017 Yukon Engine Control Module is the definitive solution, arriving at your door pre-programmed with the latest GM software specifically for your vehicle’s VIN.
A Technician’s Notebook: The Intermittent No-Start Nightmare
A customer brought in their 2017 Sierra 1500—which uses the same family of ECMs—with a frustrating problem. It would randomly fail to start, but only after it was warm. No check engine light, no obvious codes. We checked fuel pressure, spark, and starter draw—all perfect. After hours of chasing ghosts, we hooked up a scope to the ECM’s power and ground feeds while monitoring network data. We finally caught it: a momentary internal voltage drop inside the ECM itself during hot restarts, causing it to lose communication with the BCM and immobilizer. It was a classic case of heat-induced failure. Replacing the ECM with a correctly programmed unit like this one solved the problem instantly. These intermittent issues are often the hardest to diagnose and almost always lead back to the module.
Is Your Vehicle Showing These Symptoms?
A failing ECM can manifest in various ways. If you’re experiencing any of the following, it’s a strong indicator that your engine computer needs attention. A faulty 2017 Yukon Engine Control Module can be the root cause of many performance issues.
- ✔ Vehicle will not start or has difficulty starting
- ✔ Check Engine Light is illuminated
- ✔ Poor or erratic engine performance and rough idling
- ✔ Decreased fuel efficiency for no apparent reason
- ✔ Transmission shifting problems or harsh shifts
- ✔ Communication error codes, such as U0100 (Lost Communication With ECM/PCM)
- ✔ Internal module failure codes, like P0601, P0606, or P062F
A Straightforward Guide to Installation
Replacing your ECM is a manageable task for an experienced DIYer or any professional technician. Our pre-programming service handles the most complex part, but a few final steps are required on the vehicle to ensure proper function.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On most trucks and SUVs like the Yukon, Tahoe, and Silverado, the ECM is located in the engine compartment, typically on the driver’s side near the firewall or fender.
- Disconnect and Remove: Carefully unplug the electrical connectors. There are usually locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new ECM into place and securely reconnect the electrical harnesses. Ensure they click into place to confirm a solid connection.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearn Procedures: This is a critical final step. The vehicle will likely not start until a Vehicle Theft Deterrent (VTD) relearn is completed using a compatible scan tool with GM software (like Tis2web/Techline Connect). Other procedures, such as a Crankshaft Position Variation relearn, may also be necessary. This is the responsibility of the installer.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12692068 and other interchangeable numbers. It is guaranteed to fit the following vehicles and configurations. Please confirm your vehicle is on this list before ordering.
- Cadillac Escalade / ESV: 2017
- Cadillac XTS: 2017 (3.6L, VIN 8, LF3)
- Cadillac CTS: 2017 (6.2L Supercharged or 3.6L Twin Turbo VIN 8, LF3)
- Cadillac ATS: 2017 (3.6L, VIN Y, LF4)
- Chevrolet Tahoe: 2017
- Chevrolet Suburban 1500: 2017
- Chevrolet Corvette: 2017
- Chevrolet Silverado 1500: 2016 (ID 12674472), 2017, 2018 (ID 12686382)
- GMC Yukon / Yukon XL 1500: 2017
- GMC Sierra 1500 / Denali 1500: 2016 (ID 12674472), 2017, 2018 (ID 12686382)
This part is also a direct replacement for the following part numbers: 12704476, 12686382, 12674052, 12674472, 12678815.
Frequently Asked Questions
2017 Yukon Engine Control Module
Do I really need to provide my VIN?
Yes, absolutely. We program this with the latest GM software matched specifically to your vehicle’s VIN. This ensures correct engine and transmission operation, and proper communication with other modules in your vehicle. We cannot ship the part without your VIN.