Brought my 2018 Traverse in for a 12K maintenance. Dealer found a safety recall 9104489 / N192266190 for Engine Control Module Reprogramming.
Anyone else have this done? What issues does it solve?
Same thing happened when I took my Traverse in for an oil change. They told me about it when I checked in and asked if it was okay for them to do it. I don't know what it fixed but it was quick for them to do.
The Check Engine MIL may be illuminated on some 2016-2018 ATS, CT6, CTS; 2017-2018 LaCrosse, XT5; and 2018 Enclave, Regal, and Traverse models equipped with the 3.0L V6 engine (RPO LGW) or 3.6L V6 engine (RPO LGX, LFY) (Fig. 9) along with several possible drivability issues, such as hesitation or loss of power, after an auto stop/start event. In addition, camshaft position system performance DTCs P0011 (Intake Camshaft Position System Performance Bank 1), P0014 (Exhaust Camshaft Position System Performance), P0021 (Intake Camshaft Position System Performance Bank 2) and P0024 (Exhaust Camshaft Position System Performance Bank 2) may be set in history.
The DTCs may all be set at the same time or may be set in pairs of phaser performance DTCs (P0011 and P0021 or P0014 and P0024). In some cases, single and triple phaser performance DTCs may be set (P0011 first and then P0021, P0014 and P0024).
These conditions and DTCs may be caused by a software anomaly that allows the “verify sync” status to not restart and reach full “sync” when the engine restarts during an auto stop/start event. In this case, the Engine Control Module (ECM) will report the actual cam positions as zero while it continues to command the actuators to move, resulting in engine roughness or drivability concerns along with the possibility of setting multiple cam phaser performance DTCs.
These cam phaser performance and resulting drivability conditions are currently being reviewed by GM engineering. If no other concerns are found, clear the DTCs and return the vehicle to the customer.
GM Engineering is currently evaluating this condition and working on a repair recommendation. For additional information, refer to #PIP5568E.
Had this done a few weeks ago. They told me it was for smoother start/stop. Was skeptical and worried of screwing something up that I didn't think needed fixing. Went ahead and did it.
My start from an Auto Start/Stop became super smooth. Drove a truck for so long, it just seemed normal to me the slight roughness. As I think back, I think it became worse over time and so this fixed it....For now....time will tell....