Auto Warranty
Top Companies in 2026
Diamond Warranty vs Nissan Extended Warranty
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- Contracts backed by AmTrust Financial Services
- Available through a nationwide network of dealerships
- Multiple coverage levels ranging from powertrain to exclusionary protection
- Additional benefits available, including roadside assistance and rental reimbursement
- Nearly two decades of experience in the vehicle service contract industry
- Transferable coverage
- Roadside assistance
- Trip and rental reimbursement
- Cancellation options
- New and used car coverage
- Detailed sample contracts are difficult to access before purchase
- Mixed customer reviews with recurring complaints about claims and communication
- Limited digital tools, with no mobile app or live chat support
- Coverage limitations
Diamond Warranty is a Pennsylvania-based vehicle service contract provider founded in 2006. Operating through a nationwide network of dealerships, they offer several levels of protection designed to help drivers manage repair expenses after factory warranties expire. Their plans range from basic powertrain coverage to broader exclusionary contracts, with options for used vehicles, certified pre-owned models, and drivers seeking long-term protection.
Many contracts are backed by AmTrust Financial Services and may include benefits such as roadside assistance, rental car reimbursement, and trip interruption coverage. The company focuses on dealer-distributed service contracts rather than direct online sales, which means pricing and contract details often vary by vehicle and dealership. Diamond Warranty maintains an A+ rating from the Better Business Bureau, though they are not BBB accredited.
Customer feedback across review platforms is mixed, with experiences ranging from praise for responsive representatives and straightforward claims to complaints involving coverage disputes and communication challenges. With nearly two decades in the industry and a diverse selection of plans, the provider offers several features worth examining more closely before making a decision.
Founded almost a century ago and headquartered in Japan, Nissan is a symbol of reliable vehicles. In 2005, they began providing their extended warranty, Security+Plus, continuing their legacy of reliability. This extended warranty protects owners from unexpected repair costs that may arise after the factory warranty period expires. With coverage options for new and used cars and 200,000 covered components, their extended warranty provides peace of mind for a diverse range of Nissan owners. With different coverage plans available, such as Powertrain Preferred, Silver Preferred, and Gold Preferred, owners can choose the level of protection that suits their requirements based on their vehicle needs, preferences, and budgets. Key benefits include transferable coverage, roadside assistance, trip interruption reimbursement, towing services, and cancellation options, providing flexibility and convenience. The company's accreditation and A+ rating from the BBB demonstrates a commitment to customer satisfaction. As Nissan continues to evolve and adapt in the automotive landscape, its extended warranty remains a crucial aspect, offering a strong defense against surprise repair costs. For those seeking additional protection for their Nissan vehicles, delving deeper into the specifics of coverage plans and eligibility criteria is essential.
- BBB Rating : N/R (unaccredited)
- Maximum Mileage : Up to 100,000 miles
- Number of Plans Available : 6
- Operating Status : Active
- Deductible Range : Quote-based
- BBB Rating : A+
- Maximum Mileage : 120,000
- Money-Back Guarantee : False
- Number of Plans Available : 3
- Waiting Period : Unavailable
- Operating Status : Active
- Most plans begin on day one and mile one rather than requiring a standard waiting period
- Specialized coverage options for certified pre-owned vehicles and long-term 5-year/100,000-mile powertrain protection
- Dealer-focused distribution model that allows coverage to be bundled into vehicle financing
- Broad plan portfolio that includes both stated-component and exclusionary coverage levels
- Transferable coverage
- Trip and rental reimbursement
- New and used car coverage
- Authentic Nissan parts
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare
- EV/hybrid components
- No waiting period—Undisclosed
- Option with free maintenance benefits
- Transferable
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare
- EV/hybrid components
- No waiting period—Undisclosed
- Option with free maintenance benefits—Undisclosed
- Transferable
- 24/7 roadside assistance
- Any licensed repair shop
- Direct shop payment
- In-network repair network
- Mobile app for claims
- Online claims portal
- Trip interruption coverage
- 24/7 roadside assistance—Undisclosed
- Any licensed repair shop—Undisclosed
- Direct shop payment
- In-network repair network
- Mobile app for claims—Undisclosed
- Online claims portal—Undisclosed
- Trip interruption coverage
- Phone
- 24/7 customer support
- FAQs / Educational resources
- Live Chat
- Mobile Application
- Online quote without phone
- Sample contracts online
- Phone
- 24/7 customer support
- FAQs / Educational resources
- Live Chat
- Mobile Application
- Online quote without phone—Undisclosed
- Sample contracts online
- Contract (lump-sum) payments
- Pay-in-full discount
- Month-to-month payments
- Cancellation fee—Undisclosed
- Multi-vehicle discount
- Price lock guarantee
- *Not all payment methods are available in all states
- *Some payment methods may incur additional fees
- Contract (lump-sum) payments
- Pay-in-full discount
- Month-to-month payments
- Cancellation fee
- Multi-vehicle discount
- Price lock guarantee
- *Not all payment methods are available in all states
- *Some payment methods may incur additional fees
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