If your vehicle has squishy-feeling brakes, the way to get the air out of the lines is to bleed the brakes.
To do the job, you need either a brake bleeder wrench or a combination wrench that fits the bleeder nozzle on your vehicle, a can of the proper brake fluid, a clean glass jar.
This app will guide step by step to bleed brakes.
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Vehicle support:
Acura, Audi, BMW, Bugatti, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ferrari, Ford, GMC, Honda, Hummer, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Lamborghini, Land Rover, Lexus, Lincoln, Mini, Mazda, Mercury, Mitsubishi, Nissan, Pontiac, Porsche, Rolls-Royce, Saab, Scion, Subaru, Suzuki, Toyota, Volkswagen, Volvo.
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Use App:
Select Make -> Select Brake Type -> See brake bleeding procedure.