Action Unavailable While Indexing in 2019-2023 Silverado & Sierra Troubleshooting Posted March 4, 2022 Same issue, not on my 2019, but on my 21 Tahoe. Takes about 5-10 minutes to "index". Although we had the same issue on our 16 Tahoe with carplay as well. I think its an Apple issue vs. truck issue. Definitely annoying because you cant change songs, forcing you to open your phone and do it that way.