Your car’s alternator plays a critical role in keeping the battery charged and powering the vehicle’s electrical systems while the engine is running. Without a functioning alternator, the battery quickly loses its charge, leading to a stalled vehicle or a car that won’t start at all. While alternators are built to last, they do wear out over time. Catching the warning signs early can save you from being stranded. At Austin Auto Repair, we provide expert alternator replacement and auto electric repair in the greater Austin, TX area. Here are four warning signs that your alternator may be failing and should be replaced soon.

Dashboard Warning Light

Most modern vehicles have a dashboard warning light that signals a problem with the charging system. This light is often shaped like a battery or says ALT or GEN. If this warning appears while you're driving, it’s a clear indication that the alternator may not be charging the battery properly. Even if your car seems to be running fine, the battery may soon run out of power, so the issue should be diagnosed as soon as possible.

Strange Noises

A failing alternator may produce unusual noises such as whining, grinding, or squealing. These sounds often come from worn-out bearings or a slipping serpentine belt, both of which can affect the alternator’s ability to function. If you hear these noises coming from that area of the engine, it’s a good idea to have a mechanic check the alternator and surrounding components before the problem worsens.

Dimming/Flickering Lights

If your headlights or interior lights begin to dim or flicker while driving, it could mean the alternator isn’t supplying enough power. Consistent lighting is a key indicator of a healthy charging system, so any change should be checked out promptly.

Electrical Accessory Failures

When the alternator begins to fail, it can’t provide enough power to run all of the car’s electrical systems. This may result in malfunctioning accessories such as power windows, heated seats, or the stereo. These types of electrical glitches often point to an alternator that’s no longer performing as it should.

Alternator Replacement & Auto Electric Repair in Austin, TX

For expert auto repair in Austin and the surrounding area, contact Austin Auto Repair at 512-865-6217. Feel free to give us a call to schedule an appointment!