Michael621

As it turns out, the engine light went off on my way to the dealer appointment... Here is what they had do do, and only took about an hour of waiting. Request 1201 Labor 1.201 Technician Cause 1 Correction Description C/S SERVICE ENGINE SOON LIGHT IS ON Description C/S SERVICE ENGINE SOON LIGHT IS ON -000907 checked SES light no currently on. P11D5 Nox#2 exceeded learned limit. doc#54S1684,5685258. checked ECM calibration out of data, programmed ECM claim code 11ΥΝ98116756. retest OK

Sorry, have not had any issues with my iPhone 13 or Apple CarPlay at all. Ready to roll as soon as I start the vehicle, and works great for the duration of my drive.

Thank you for the info. I was hoping it would magically disappear with a few engine cycles, and it did not today. Guess I'll run it in to the dealer soon and see what gives.

So, I had an engine light stay on when I started the truck after work today, got 1100 miles on the truck. Got the info below via email from onstar after they investigated. Just curious if anyone else had had this happen, and what/how long at the dealer? Thanks for any prior diagnosis/timeline. ECM - Engine System P11D5 The Emissions System is not performing as expected. An issue has been detected in the Exhaust Emissions System which monitors and controls exhaust gases released into the air from the engine. If the vehicle is continually driven with this light on, the emission controls might not work as well, the vehicle fuel economy might not be as good, the engine might not run as smoothly and could lead to future repairs. Service within 7 days

Me too! I remembered this comment when I took delivery of my truck a month or so ago, had 4 miles on it. Pushed the brake peddle to start, and it almost went to the floor. Followed these steps then, and has been fine since.

Looks great, congrats!!

Thank you, (and all) I was wondering if tire wear would be an issue. I'll just follow the inflation sticker. Not looking for premature tire replacement, that's for sure.

Hey all, I have always followed the tire pressure sticker on the door jamb when airing up, but the stated pressure seems excessive (60 front/70 rear) for cruising around with an empty truck? This is my first 2500HD, so not sure... I've got stock 20" Goodyear Wrangler Trail Runner LT275/65R20 What are you guys airing up to with this tire? Thanks for any input. M

Ended up getting 60k for the AT4 on trade.

Sounds promising, my VIN sticker states my truck build date was 10/21 and I drove it home from the dealer on 11/4. What did you order?

You are correct, my new truck is very quiet while cruising down the highway.

Those came from Chevy with the midnight or trail boss package as I recall. Too long and a couple trucks ago to remember exactly, sorry!

It is easy to do, select settings from the Home Screen, system, then wifi networks. Good for any updates if you do not have the wifi hotspot data plan.

Nice truck, enjoy it! BTW, just did the same thing AT4 to 2500 LTZ, need more capability as well.

So I shifted gears, requested my hold deposit back for the high country and instead bought a 2022 2500HD LTZ in white. It has all the options the high country and had the addition of black rims and badges, so happy about that. One less thing to do to it.