Telematics is not part of the supplemental restraint system. The supplemental restraint system typically includes components such as airbags, seat belt pre-tensioners, and side curtains, which are designed to enhance occupant safety in the event of a collision. Telematics, on the other hand, refers to the technology that integrates telecommunications and informatics for various purposes such as vehicle tracking, remote diagnostics, and emergency services, but it is not directly related to the supplemental restraint system.