New '21 Caligraphy owner, would like to contribute to group. Have dealer installed Hyundai crossbars but needed to adjust them as they were over sunroof. Instruction sheet okay, overall easy. Covers are held in place with a 1/4 turn logo using supplied "key". Hex cap bolt loosened with provided tool. Loosen about 7 "half turns" to each side. You can now slide bars or remove. Re-tighten note provided tool has 8nm torque indicator, tighten until it appears through slit. Replace cover, note RH indicates passenger side, LH for drivers side. Re-lock cover.