All Security+Plus Plans include coverage of:

Engine
Transmission
Drive Axle
Steering
Suspension

Air Conditioner/Heater
Brakes
Electrical
Body & Interior
Audio

Also, all Plans offer the following:

Comprehensive coverage for up to 7 years / 100,000 miles to guard against the rising cost of repairs.
Nationwide repairs at any authorized Nissan dealership by factory-trained technicians.
Customer Assistance available throughout the United States at any Nissan dealer or by calling 1-800-NISSAN-1 (1-800-647-7261).
The choice of plan that best suits you, with $0 or $50 deductible on covered repairs. This deductible is on a per visit basis.
Payment-free service, other than your deductible. Dealers are paid directly by Nissan.
The ability to transfer your plan to a new owner if you sell your Nissan before your coverage expires**.
Convenient and economical coverage.
Only Genuine Nissan replacement parts^ are used for most covered repairs - never inferior substitutes.

Additional Features

The ultimate protection package that gives you all the superior benefits of Security+Plus with these added features

Roadside Assistance - 24 hours a day, 365 days a year.
Added Component Coverage - Get additional coverage for 68 audio/video components as well as additional high wear components coverage.
Trip Interruption - Trip Interruptions Coverage reimburses you for meals, lodging and alternative transportation up to $500 any time your vehicle is disabled due to a mechanical breakdown caused by a covered component and you are more than 100 miles from home.
Enhanced Rental Benefits - Eligible car rental reimbursements increase to a maximum of 5 days and $175.