Ask ten owners with a marked infotainment display how it happened and most will say they do not know. The honest answer, in the majority of cases, is that they did it themselves — during a routine clean, with a dry cloth, on a dusty screen.
A dry microfibre dragged across a dusty panel is not cleaning it. It is lapping it. The grit is harder than the anti-glare coating, and every pass leaves a fine arc that you will eventually see when the sun hits the screen at the wrong angle.
The method
- Turn the screen off first. A dark panel shows dust, streaks and existing marks that are invisible on a lit display.
- Blow or lift the loose dust before anything touches the glass — a can of compressed air held at a distance, or a clean makeup-style brush.
- Dampen a clean microfibre with distilled water or a screen-safe cleaner. Never spray directly onto the panel; liquid runs into the bezel gap and finds electronics.
- Wipe in one direction with light pressure, not in circles. Circles redistribute grit; one direction carries it off the panel.
- Finish with a second, completely dry microfibre to lift the moisture before it evaporates and leaves mineral spots.
What to keep away from the screen
- Ammonia-based glass cleaners — the same chemistry that makes them good on windscreens strips automotive anti-glare coatings.
- Alcohol wipes as a routine cleaner. Fine for a one-time prep before fitting a protector; too aggressive as a weekly habit.
- Paper towels and tissues. Wood pulp is abrasive at this scale, whatever the packaging claims.
- Anything labelled "polish", "compound" or "restorer". There is nothing on a touchscreen that can be polished back.
- The same microfibre you use on wheels or the dashboard. Once a cloth has picked up grit, it keeps it.
Why this argues for a protector
You are going to clean the screen. Regularly, for years. Every one of those cleans is a small risk to a component that cannot be repaired — a scratched infotainment unit is replaced, not refinished, and out of warranty that is usually a five-figure bill.
A protector moves that risk onto a layer that costs a few hundred rupees and takes two minutes to replace. It does not stop you having to clean the screen. It makes it stop mattering when you do it imperfectly.