Once you obtain the resistance value, Yahoo or Google "VATS key codes". You'll quickly find a listing of the GM pellet resistance/key chart, which will tell you which key (#1-15) you have.

GM is enhancing its in-vehicle digital convenience features by expanding Digital Key functionality to support Apple Wallet, including iPhone and Apple Watch.

That advice is to drive with the key alone in the ignition of with all additional weight removed from the key ring -- even the remote fob. In the report posted on the NHTSA's website, GM said it ...