2020 GMC Sierra 3500HD Denali White Frost Tricoat 4D Crew Cab 4WD Duramax 6.6L V8 Turbodiesel Odometer is 54660 miles below market average! Certification Program Details: 6 MONTH / 7,500 MILE COMPREHENSIVE LIMITED WARRANTY 12 MONTH EASYCARE SELECT PLUS - WINDSHIELD REPAIR - ROAD HAZARD PROTECTION - COSMETIC WHEEL REPAIR - ROADSIDE ASSISTANCE -COMPLIMENTARY 1ST OIL CHANGE -$500 TRADE IN VALUE GUARANTEE -72 HOUR EXCHANGE POLICY ( MAXIMUM 300 MILES DRIVEN) -BEST VALUE GUARANTEE --PORTSMOUTH FORD ADVANTAGE BENEFITS --6 MONTH/7,500 MILE COMPREHENSIVE WARRANTY --WINDSHIELD REPAIR --COSMETIC WHEEL REPAIR --ROAD HAZARD PROTECTION --ROADSIDE ASSISTANCE --KEY REPLACEMENT --PAINT LESS DENT REPAIR --72 HOUR EXCHANGE POLICY (MAX 300 MILES ) PORTSMOUTH FORD HAS BEEN THE ORIGINAL ONE TRUE PRICE DEALER SINCE 1992, WHILE NEVER CHARGING ANY DEALER, DOCUMENTATION OR PREPARATION FEES GUARANTEED.