GMC Sierra 2026 mileage: 17 KM For sale: GMC Sierra SLE Agent: Al Jomaih and Sons Model: 2026 Mileage: 17 thousand The car is in excellent condition, free from all issues. Second owner. Maintenance done at the agency. Additions: It has a full PPF wrap from when it was new, costing approximately 11 thousand. Serious buyers only, please.