The thawing weather across the mid-Atlantic region, including Southern Maryland, signals prime time for drivers to remove winter’s harsh buildup from their vehicles. A February 10, 2026, advisory from AAA highlights how a timely car wash—especially one targeting the undercarriage—can prevent expensive rust and corrosion damage caused by road salts and de-icing chemicals.
AAA officials warn that failing to clear accumulated residues now risks major repairs later. Previous AAA research shows Americans face about $3 billion annually in rust-related vehicle fixes, largely tied to de-icers used on roads and parking lots. These chemicals accelerate corrosion on brake lines, fuel systems, exhaust components, and underbody structures.
Ragina Ali, Manager of Public and Government Affairs for AAA in Maryland and Washington, D.C., stresses proactive steps. “Taking the time for a quick car wash now could save both time and money down the road,” she says. “Corroded brake lines, often the result of road salts and de-icers, can cost hundreds of dollars to replace, or more, depending on the vehicle.”
With new vehicles averaging around $50,000, owners increasingly hold onto cars longer, making maintenance essential for longevity beyond appearance. AAA urges drivers to seek car washes offering undercarriage rinses, which flush away salt buildup from wheels, wheel wells, and critical areas. For hand or wand washes, focus extra effort on these spots.
AAA provides clear guidance to limit winter damage:
- Avoid driving right before, during, or immediately after storms when salt concentrations peak.
- Wash vehicles frequently, prioritizing undercarriage cleaning to dissolve and neutralize salts; many automated washes include undercarriage options.
- Choose high-quality car wash solutions—never household dish detergents that strip protective wax.
- Fix body damage promptly and touch up paint chips exposing metal to block rust starts.
- Perform a thorough spring cleaning of the vehicle and undercarriage to eliminate lingering deposits that cause year-round corrosion.
- Address interior moisture: Remove, clean, and dry floor mats after snow melts to prevent internal rust on floorboards.
Washing remains safe above freezing temperatures. Below that, soap or rinse water could refreeze on components. Dry the vehicle fully post-wash, including seals and door jambs, to prevent doors from freezing shut and reduce dirt attraction.
AAA cautions drivers facing serious signs to pull over safely and arrange a tow to a trusted facility:
- Dashboard warning lights for brakes or vital systems.
- Soft or spongy brake pedal feel.
- Loud exhaust noises or interior fumes.
- Strong gasoline or diesel odors while running or parked.
In Southern Maryland, where winter road treatments mirror regional patterns, local options like undercarriage-focused washes help combat salt exposure from county-maintained roads. This preventive approach aligns with broader AAA recommendations seen across Maryland and nearby areas, emphasizing routine care to safeguard vehicle safety and value as spring arrives.
