Never use these glass cleaners near the dashboard of your car – Jalopnik

You’re halfway through cleaning your car, notice a stain on the dashboard and reach for that trusty blue bottle of window cleaner. A few spritzes, a quick wipe and you’re done – except you’ve just started a slow chemical war against your own dashboard. Most commercial glass cleaners like Windex are packed with ammonia, alcohol and solvents – components that are fine for glass, but a nightmare for interior plastics, leather and vinyl.

Ammonia is especially cruel. It breaks down the protective coatings on leather and faux leather (yes, the fake coating). Over time, the dashboard can dry out, fade and eventually crack, especially in sunlight. Ammonia can also leave an unwanted residue that attracts dust and increases glare, turning your sleek dashboard into a reflective eyesore.

Also avoid using chemicals containing ammonia on your touchscreens. They are covered in delicate anti-glare and anti-fingerprint layers that keep everything looking crisp and clear. Hit them with the cleaner and you can peel the coating right off. Cloudy screens and unresponsive touch panels are the result. Finally, remember that ammonia can cause physical discomfort and even illness if you are exposed to too much. One whiff can sting your eyes, make you cough, burn your throat and make any breathing difficult.

Car interiors are designed for UV resistance and heat tolerance, not chemical resistance. So when it’s time to clean that dusty dashboard or repair a sticky dashboard, skip the glass cleaner. You are actually dissolving the layer that is meant to protect it. It will shine, but not for long.

The good news is that you don’t need harsh chemicals to keep your car’s interior spotless. Most detail professionals swear by ammonia-free glass cleaners or interior-specific sprays designed for sensitive surfaces. Alternatively, you can purchase a combination of dashboard and glass cleaner. These products use gentler water-based formulas that remove dirt without stripping UV coatings or leaving a reflective cast.

Combine these cleaners with a microfiber cloth (not paper towels, which can scratch soft plastic) and you’re halfway to professional results. Remember to spray the solution onto the towel, and not directly onto the dashboard. For infotainment screens and digital clusters, use a cleaning solution labeled as safe for electronics or distilled water and a damp cloth.

Automakers themselves often recommend OEM-approved, pH-balanced interior cleaners. They are specially formulated for the exact materials used in their cars. They cost a few dollars more, but can save you hundreds of dollars on cracked upholstery repairs later. Think of it like buying sunscreen for your dashboard: it’s invisible and boring, but it can help you avoid a lot of damage in the long run.

The bottom line is that you should generally avoid using glass cleaners on your car’s dashboard. They are more suitable for cleaning the outside of car windows and windshields. The moral here? That cheap blue bottle isn’t a shortcut, it’s a saboteur, a villain dressed as a cleaning hero.