My car is making a weird noise when I brake, like a squealing sound. The brake warning light comes on on the dashboard sometimes too. Is it time to replace the brake pads or could it be something else?
The best way is to actually go to a mechanic for a visual inspection, because that squeaking could be anything from worn brake pads to a scratched disc, and the warning light on the dashboard can mean other things too (dirty sensor, hydraulic issues). That said, if the noise is like a high-pitched squealing when you brake and the light comes on regularly, it's pretty likely the pads are actually worn down - most cars have sensors that trigger when they get too thin. However, only a proper check will tell you for sure whether you just need to replace the pads or if there's more damage in the whole system.
Don't put this off - the squeaking can get worse quickly, and a warning light on the dashboard is always a sign that deserves attention. That said, you're right not to assume right away that it's the brake pads. The noise could be anything from pads that are nearly worn out to a scratched rotor or even worn wiper blades that sometimes hit other components. The warning light can also go off for other reasons related to the braking system.
The most reliable thing is to take your car to a mechanic and have them do a quick visual inspection - it takes a few minutes and usually doesn't cost anything if you have the work done there. They'll take off the wheel, check how worn the pads and rotors are, and figure out what the problem is. I had a similar situation a while back and it turned out to be the pads rubbing because they were almost gone, but the rotor had marks on it too. Maybe it all wears down at the same time, so you might get a better deal doing it all at once.
While you wait for the appointment, avoid unnecessary hard braking and try to slow down ahead of time when you can. If the light doesn't go away or the squeaking gets worse before you get to the mechanic, don't put it off - this is about safety, and it's not worth taking the risk.
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