While the specific ION10-tagged subtitle file isn't explicitly listed in the top results, you can find compatible versions on several major subtitle repositories:
[Subtitles] Detailed information for The. Ice. Road. 2021.1080p. WEBRip. x264. AAC5. 1-[YTS.MX] ㅣGOM. The.Ice.Road.2021.1080p.WEBRip.x264.AAC5.1-[YTS.MX] subtitle The.Ice.Road.2021.WEBRip.x264-ION10
[Subtitles] Detailed information for The. Ice. Road. 2021.1080p. WEBRip. x264. AAC5. 1-[YTS.MX] ㅣGOM. subtitle The.Ice.Road.2021.WEBRip.x264-ION10
If you find a subtitle file that is slightly off, most media players (like VLC) allow you to adjust subtitle delay using the 'G' (delay) and 'H' (advance) keys. The.Ice.Road.2021.1080p.WEBRip.x264.AAC5.1-[YTS.MX] subtitle The.Ice.Road.2021.WEBRip.x264-ION10