I was shopping for tires for my 2018 SLT and also found they were a better price, got a set Pirelli Scorpions that I like.
the dealership had me in and out in under an hour.
I installed the same thing on my 2021 GMC Sierra 6.2, works great. I like it because it keeps the Auto Stop functional not just a disable device. That way you don't have a "dead" switch.
My 2018 has been great, not 1 single warranty issue at 44,000 miles, SLT Premium. Just getting ready to trade it in on a new one in the next couple of weeks if I can complete my quest of finding one...
Don't know if this works or not I don't have a 2021 (yet) to try it on....
https://gmauthority.com/blog/2021/09/heres-how-to-stop-a-gm-vehicle-from-shutting-off-engine-when-parked/
In looking at the 2021 Denali Ordering packages the Vehicle would have to have one of the following packages:
1. Advanced Technology Package $1780
2. Denali Premium Package $7000
3. Denali Ultimate Package $11,255
The Salesmen statement "this has just about everything" is true, Denali's do have...
GM started charging for Remote Access around mid 2018, I had a 2018 Sierra and just missed the cut off and had to pay the $14.99.
You might be able to get an OnStar discount through Costco.
From the OnStar App:
2018 Yukon lifetime average for 30,000 miles 18.7 MPG [5.3 Engine, 6spd]
2018 Sierra lifetime average for 27,000 miles 17.8 mpg [6.2 Engine, 8spd] with 5000 miles of heavy Uhaul towing!
1. The dealer may have reported the vehicle delivered to earn extra production allocation, or it was reported as a demo or courtesy loaner as previously stated, if the latter were true it would have had mileage on the odometer.
2. The lane camera does NOT come with the windshield. The mount...
You can program the lift gate to limit the opening to any height. Manually open it to the desired height and hold the CLOSING button until the horn honks or the tail lights flash. Maybe your button got pushed at the height it is currently opening to?
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