Gold Security Plus The Nissan Gold Warranty Extension covers the cost of parts and labor to repair the engine, transmission, audio, video, navigation, electrical, heater, air conditioner, drive train, FWD, RWD, AWD, transfer case, suspension and all other components except those on the exclusion list. Silver Security Plus The Nissan Silver Warranty Extension contains an extensive list of covered components, but has an equally large list of items that are not covered. It’s more of a gamble than a security. This may be a good choice for a base model Sentra, but for a fully equipped Rogue the Gold Plan is an easy #1 choice.