What Is an Alternator?

Your car's alternator is a key component of its electrical system. It powers your vehicle's electrical accessories and recharges the battery while the engine is running. When the alternator fails, the battery won’t charge properly, and you may be left stranded.

Top Signs Your Alternator Is Failing

• Dim or Flickering Headlights: One of the earliest signs is your headlights becoming noticeably dimmer or flickering while driving.
• Battery Warning Light: The battery icon lighting up on your dashboard could mean the alternator is underperforming.
• Electrical Failures: Malfunctions in power windows, stereo, or dashboard lights may point to a failing alternator.
• Strange Noises: Grinding or whining noises under the hood can indicate alternator bearing issues.
• Dead Battery: If your battery keeps dying even after replacement, the alternator might not be charging it.
• Burning Smell: An overheating alternator may emit a burning rubber or electrical smell.
• Engine Stalling: Without proper electrical power, the engine may stall or have trouble starting.

Why You Shouldn’t Ignore It

A failing alternator can lead to sudden vehicle breakdowns, leaving you stranded. It can also damage other electrical components, adding to repair costs.

Catch these signs early and avoid expensive repairs. If you're driving an Acura TL, TSX, or RL from 2004–2014, make sure you check TLM Auto Parts for reliable replacement alternators and OEM-quality parts.

Need a Replacement Alternator?

Shop our selection of quality used and refurbished alternators for Acura vehicles. Every part is inspected for performance and backed by our trusted team at TLM Auto Parts.