Brake fluid naturally absorbs moisture from the air over time. As moisture builds up, its boiling point drops and internal brake components can become more prone to corrosion. Old brake fluid can contribute to reduced braking performance, especially under heavy braking.

Battery output drops as temperatures fall, while your engine requires more energy to start in the cold. A battery that seems fine in warmer weather can suddenly struggle once winter arrives.

The engine air filter helps keep dirt and debris from entering the engine, while the cabin air filter helps filter dust, pollen and other particles from the air entering the passenger compartment. Restricted filters can affect airflow and system performance.

Brake maintenance is more than replacing pads and rotors. Cleaning and lubricating moving components can help prevent seized hardware, uneven brake wear and premature component failure.

Vehicles are designed to be driven. Long periods of sitting can contribute to battery discharge, brake corrosion, tire flat-spotting, moisture buildup and fluids deteriorating without normal circulation. Regular use can help keep many systems functioning properly.

Coolant helps regulate engine temperature and contains additives that protect the cooling system from corrosion. As coolant ages, those protective properties break down. Neglected coolant can contribute to corrosion, deposits, overheating and premature cooling-system component failure.