The wireless charger does not charge a IPHONE X
That is correct, the IPhone X does not charge on the charging pad.
Here is a wireless charging compatible device list;
Do you know if there is a new componet that chev can replace with ?
Most likely the dealer can answer your questions or at least know who to call . I personally recommend checking with the dealer first because it avoids making warranty problems later.
There is a Gen II wireless charging module that your dealer can install, MSRP is $99 plus labor.
Here is some information on the upgrade;