Are you talking about premium care or is platinum care a new level that is better than premium care?
It does cover a lot of stuff, but 'just about everything' is not the best way to describe it (lighting is an upcharge, rental is an upcharge, key service is another upcharge, be mindful of the deductible also). I noticed a lot of dealers advertise it as if it is a bumper to bumper warranty, but it doesn't even cover the bumpers... ;-)
Premium care does not cover a whole bunch of stuff:
Examples include: fixed (non-moving) body parts, bumpers, glass,
moldings, ornamentation, paint, rust, sheet metal, structural
underbody framework, side and rearview mirrors (glass and housing),
water leaks, wind noise, weather strips, wheels, wheel studs, wheel
covers, convertible top and bow.
Items listed in your vehicles owner guide such as: batteries of all types
and cables, belts, hoses, hose clamps, brakes (front hub, drums, shoes,
linings, disc rotors, pads), manual transmission clutch disc, exhaust system
(includes catalytic converter), spark plugs, squeaks, rattles, tires, wheel
balancing, wheel alignment, all lamps and lights (LED and HID lights, bulbs,
sealed beam and lenses) except when purchased with New or Incomplete
PremiumCARE Interior/Exterior Lighting Option, fogging of lamp assemblies,
shock absorbers, service adjustments and cleaning.
Other Components and Repairs – Fabric, liners,
fasteners, carpets, dash pad, wiper blades, knobs, trim, upholstery,
physical damage or cosmetic issues, repairs covered by manufacturer
recalls, any insurance or if the vehicle is within the time and mileage
limits of any warranty, repairs caused by improper unreasonable
use, unauthorized alterations or modifications of the vehicle, repairs
caused by lack of required or recommended maintenance, and
scheduled maintenance services. Costs or expenses for the teardown,
rental expense, inspection or diagnosis of failures not covered by this
Agreement. Refer to contract for details.