2. Do not use summer-only tires in winter conditions, as it would adversely affect vehicle safety, performance and durability. Use only GM-approved tire and wheel combinations. Unapproved combinations may change the vehicle's performance characteristics. For important tire and wheel information, go to cadillac.com/owners/accessories.html or see your dealer.
3. Full functionality requires compatible Bluetooth® and smartphone. Some devices require USB connectivity.
4. Devices must be WPA2-compliant with active OnStar service and data plan. Wi-Fi devices manufactured prior to 2006 may not be compatible. Please consult your device manufacturer for information regarding the WPA2 security protocol and Wi-Fi device compatibility. Visit onstar.com for details and system limitations.
5. The system wirelessly charges one PMA- or Qi- compatible mobile device. To check for phone or other device compatibility, see www.gmtotalconnect.com.