GMC Sierra 2021 mileage: 135 KM Peace, mercy, and blessings of God be upon you. (( SOLD by the grace of God)) (( SOLD by the grace of God )) For sale: GMC Sierra, full option AT4. Agent: Saudi Model: 2021 Color: Black Mileage: 135,000 kilometers, subject to increase. Owner: Second Specifications... Keyless entry and start Remote start Column shifter 4WD Leather seats Screen Front and rear sensors Air conditioning Steering wheel controls And the rest of the known specifications for this category. Bed cover Power running boards Front end protection film Transmission cooler Engine, transmission, chassis, and body are factory condition, guaranteed.