The main causes of power steering system failures can be categorized into three types: mechanical component wear, hydraulic system abnormalities, and electronic component malfunctions. Hydraulic system failures are primarily caused by insufficient oil pressure resulting from wear of the power steering pump vanes, leakage in the flow control valve, or spring failure, presenting as stiff steering, while contaminated fluid, clogged filters, or air ingress will exacerbate the issue. Electronically, unstable alternator output or power steering pump electrical faults may trigger warning lights; a yellow light indicates reduced power assist, while a red light signifies complete loss of power assist requiring immediate service. Routine maintenance should include periodic inspection of fluid condition (steering fluid replacement is recommended every 2 years or 40,000 kilometres), tyre pressure, and chassis suspension components. Any sudden changes in steering effort or fluid leakage should prompt immediate diagnosis at an authorised service centre, where installation of genuine seals and hydraulic components will ensure system longevity.
