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How to Get Salt Stains Out of Car Carpets

By the North Auto Spa team · Updated October 31, 2026

Vacuum the dry salt first, then spray a mix of warm water and white vinegar (about half and half), let it sit a few minutes, scrub with a stiff brush and blot with a towel. For deep or old stains, a hot-water extraction (shampoo) works best.

Why salt stains happen

In Ontario winters, salt and slush come in on your boots. When the water dries, it leaves white crusty rings in the carpet. Left too long, salt can make carpet stiff and wear it out faster.

Step-by-step: do it yourself

  • Vacuum well to pick up loose salt and sand.
  • Mix warm water and white vinegar, about half and half, in a spray bottle.
  • Spray the stain until damp, not soaking.
  • Wait 3–5 minutes so the salt dissolves.
  • Scrub with a stiff brush.
  • Blot with a dry towel. Repeat if needed.
  • Leave windows open a little so it dries fully.

When to call a detailer

If the stains keep coming back, cover most of the floor, or the carpet smells musty, it is time for a professional salt stain treatment. At North Auto Spa, salt stain treatment can be added to any detail for $25.

How to prevent salt stains

  • Use rubber all-weather floor mats in winter.
  • Knock snow off your boots before getting in.
  • Book a Deluxe Detail in spring to clean out winter salt.

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