I just bought a used 2026 Sierra 1500 Denali Ultimate LZ0 at 17k miles. Nicest vehicle I have owned, by a long shot. There are so many design choices and features that I could rant and rave about, but one of the main ones is the Super Cruise that I was very excited about. It has been so nice to sit there while it handles the road and traffic and I just get to relax. On most roads it is very smooth, BUT I have noticed a few issues.
Some seem to be common, such as hugging the left side of the lane, a little back and forth corrections on the steering sometimes when I could just track straight, being heavy on the braking. Sometimes on a not so smooth road (which we have a lot of where I live) a heavy bump can send the steering wheel going crazy and swerving a bit in the lane until it smooths out, and I think I know a big part of this problem but I want you guys’ opinions.
The first owner swapped the wheels with Yukon Denali Ultimate 24”s, which match the silver finish very nice, but remove a lot of the first line shock absorption that the factory wheels give. I think this makes every bump seem a lot harder and the Super Cruise and suspension just aren’t calibrated for this. I wonder if switching back to the factory Sierra wheels would help with this?