Bluedog

Delete all the trailer profiles, and set up a new one for your trailer. Should be ok then. The system remembers parameters from trailers connected, and likely thinks your trailer has incandescent lights. When you connect any other trailers, either set up another profile or choose guest.

Have the dealer reset the ESC offsets using the steps in the original steering wheel oscillation bulletin. Very quick process. I'd bet willing to bet that fixes it.

Yes, mine does. It also goes away by itself after a short bit. I usually don't even notice it.

GM Customer Care called this morning, and long story short, GM has no known repair for the steering wheel "oscillation" that seems to affect a significant number of trucks. They also reiterated that it is "normal" for the steering wheel to shake, so there is no defect to claim a buyback. What that means is if you have had the TSB completed that is referenced in this thread, and you still have this problem, you're simply out of luck as far as GM cares. The rep even stated that GM engineering nor TAC are even working on a fix at this time. Great. An $80K truck with a shaking steering wheel as an engineered "feature."

Verbatim from GM: "The condition is considered normal, so there would be no cause for a buyback." In other words, GM doesn't consider this a defect, so there really isn't a problem. Again, GM washing their hands...

Truck back from the 4th visit at the dealer to correct the shimmy issues I'm having. Long story short, GM has notified the dealer that this is a "normal operating condition" and it will not pay for further warranty work on this problem. You read that right - GM is now saying that steering wheel shimmy is a feature, and not a defect. It must be a widespread problem, as I drove 4 brand new trucks on the lot, and all of them had the same issue, one was better, the other three were worse. What this really means is GM has no fix for the problem and they are trying to wash their hands of it. In all fairness the customer relations person I have been working with has been great at coordinating the dealer, field engineers and TAC to find a resolution. In the end though, TAC has indicated there is nothing else that can be done. I recommend that everyone that has this problem call GM at 800-462-8782 and ask for the case to immediately be escalated to the Executive Customer Relations team. Don't take no for an answer. Also, since this problem seems not to matter to GM, report the issue to https://www-odi.nhtsa.dot.gov/VehicleComplaint/ as a safety concern. I can't express how disappointed I am with GMs response to this.

Dealer has put the scope on during three of the visits. Shows it is not a tire problem, although it surely must be considered. As per the bulletin, the dealers applied the new calibration as the Y-axis was below 25mg. As I stated above, the calibration did nothing to help the condition. Multiple tire balances and road forces have not either. This is clearly a manufacturing / engineering defect for which GM does not seem to have an adequate repair. I have contacted GM customer service (basically useless) requesting GM TAC work directly with the dealer to rectify this issue when the truck goes in for the FOURTH visit this week. My dealer is doing the best he can, but when GM won't work with him - other than pointing to a bulletin that does not correct the problem, then its incumbent for GM to step up to the plate and provide a fix, or take the truck back. We'll see what happens. Where I live, its an hour drive each way to the dealer, and they will not offer a rental, so I have to sit there and wait. What a s*** show this has become. And MTU Alum - if you would forward this to whoever might actually have a clue, I'd be grateful...

The steering calibration did not fix the first condition, it still exists, with no improvement. At all. I would think that after 4 separate attempts to balance tires and road force at three different facilities, including two certified GM dealers, that issue would be corrected as well. Included is the replacement of one tire - that GM declined to replace under warranty and I had to take care of myself - at my cost. I take the truck in for the fourth visit next week about this issue, and a few others due to poor workmanship. The dealer knows they have done everything they can to fix the steering, and they are unable to get straight answers from GM on what to do next. But they are documenting everything in case I need to take further action. GM knows this is a problem with these "difficult to balance" crap tires, as acknowledged by the post quoted above. How about they just start replacing them with another brand. This seems to help the majority of people who have done it. However, after paying $80K for a truck, I loathe the idea of spending another $1250.00 to put decent tires on it to correct a problem that GM knows about, and yet chooses to do nothing about. At this point - #GMsucks

Back from the dealer for an alignment - seriously out from the factory and rebalanced all four wheels. Shake is still there. Service manager claims it is a widespread problem, and they have had no success at all with things improving after the software update process. GM keeps telling them its not a tire problem, and the update takes care of the issue. Well, it didn't on mine for sure. Isn't there someone on this board that works for GM? MTUgrad maybe? I'd like to actually talk to someone at GM that might know whats going on instead of their mindless customer service reps that do nothing...

I've had one front tire replaced, all balanced and road forced twice, and the update applied. No difference at all. Steering wheel still shakes like hell when just a bit of turn is applied from center. It almost feels like my traverse does when the lane correction kicks in. It feels like the electric steering is fighting itself trying to find the steering center. C'mon GM - its a pretty common problem, and the "fix" - doesn't. Pretty disappointing, especially with a dealer service department that insists they have fixed the problem, but then readily accept it is still there when forced to take a test drive. BTW - nailed the mechanic for shagging the hell out of my truck and taking it to the local Sonic for lunch by using the myGMC app. Just an FYI.