What Does an Alternator Do?

Whether you’re a first-time car owner or you’ve been cruising Henrico streets for years, the inner workings of your vehicle can be baffling. If you’ve ever wondered, “what does an alternator do?” you’re not alone. To keep it simple, the alternator provides your car’s electrical system with the power it needs to operate. If you thought the battery powered your car, again, you’re not alone – the battery is only used to start it. You can regard the alternator as a gas-powered generator. Get to know your car’s alternator a little better with the Rick Hendrick Chevrolet Richmond service pros!

How to Know if Your Alternator is Failing

If recent issues during your Glen Allen commute have led you to suspect an issue with your car’s alternator, here’s how you can determine that it may in fact require service:

  • The car fails to start completely
  • The headlights or interior lights have lost some brightness
  • Devices failing to charge
  • A burning rubber smell emits from under the hood
  • The battery warning light is illuminated on the dash
  • The car produces a whining or screeching sound after you start it

Failing Alternator vs. Failing Battery: How to Tell Them Apart

It is all too easy to mistake a bad alternator for a bad battery. The easiest way to determine the root of the issue is to simply wait until your car cannot start without a jump. Follow through with a jump-start, being sure to disconnect the cables once it starts up. If your car proceeds to die again directly after the jump, you’re more than likely dealing with a bad alternator. The expert technicians at Rick Hendrick Chevrolet Richmond would be glad to take a look – schedule a service appointment with us today!

What is the Average Lifespan of an Alternator?

Alternators usually go bad after 80,000 – 150,000 miles or about seven years on the road. With that said, certain factors may cause your alternator to go bad sooner than predicted:

  • The driving conditions your car is subjected to
  • Type/quality of the alternator
  • Dirt and dust can get in the alternator and cause a power shortage

How Much is an Alternator Replacement?

If your alternator needs to be replaced, your next question will likely be, “how much is an alternator going to cost?” Different makes and models require different types of alternators, so the price will vary based on your vehicle. If you’d like to get a quote from Rick Hendrick Chevrolet Richmond, just give us a call at (844) 415-1110 and our service advisors will be glad to assist. Be sure to ask about our rotating parts specials, as you may be able to get an alternator at a lower price.

Alternator Service in Richmond

Searching for reliable alternator service near Goochland? Turn to the service pros at Rick Hendrick Chevrolet Richmond! With any additional questions pertaining to “what does an alternator do?”, you can contact us online or check out our service tips! From information on how much an alternator is to when to replace a car battery, we are here to help you become a more confident car owner.

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Hendrick Vehicle Disclaimer:
$899 Dealer Processing Fee included in advertised price.

All prices exclude all taxes, tag, title, registration fees, government fees and electronic filing fee. Out of state buyers are responsible for all taxes and government fees and title/registration fees in the state where the vehicle will be registered. All prices include all manufacturer to dealer incentives, which the dealer retains unless otherwise specifically provided. Dealer not responsible for errors and omissions; all offers subject to change without notice; please confirm listings with dealer.

All vehicles may not be physically located at this dealership but may be available for delivery through this location. Transportation charges may apply. Please contact the dealership for more specific information. All vehicles are subject to prior sale.

Additional Disclaimers:


Well-qualified customers who purchase a new, used, or certified pre-owned vehicle, 4 model years or newer with less than 60K miles between June 2, 2026 and July 31, 2026, and finance through a participating dealer and lender have the option to defer monthly payments for 90 days from contract date. Excludes Hendrick Performance vehicles. Finance charges begin to accrue on the date you sign the Retail Installment Sale Contract at the Annual Percentage Rate (APR) disclosed in the contract. May not be combined with other preferred lender financing offers. 75 months maximum term limit. Equal monthly payments only. Not available to Pennsylvania residents; see your dealer for details. Must take retail delivery by July 31, 2026. See dealer for complete down payment and interest rate options and details. Financing available to qualified buyers. Some exclusions apply. See dealer for complete details. 

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #T29065. See dealer for details. Take retail delivery by 8/3/26. **Finance charges accrue from date of financing. Deferred monthly payments for 90 days. 0% APR for 60 months. Monthly payment is $16.67 for every $1,000 you finance. Example down payment: 6.9%. Must finance with GM Financial. Down payment required at signing, if applicable. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 8/3/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #T29065. See dealer for details. Take retail delivery by 8/3/26. **Finance charges accrue from date of financing. Deferred monthly payments for 90 days. 0% APR for 60 months. Monthly payment is $16.67 for every $1,000 you finance. Example down payment: 6.9%. Must finance with GM Financial. Down payment required at signing, if applicable. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 8/3/26.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #DT29143. See dealer for details. Take retail delivery by 8/3/26. **0% APR for 36 months. Monthly payment is $27.78 for every $1,000 you finance. Example down payment: 17.1%. Must finance with GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery 8/3/26. ***For Current GM Employees and Eligible Family Members who are Current Lessees of a 2021 model year or newer GM or Non-GM passenger car or truck at least 30 days prior to the lease of a new GM vehicle through GM Financial. Customer remains responsible for current lease payments. Each dealer sets own price. $249/month for 36 months. Your payments may vary. Payments are for a 2026 CHEVROLET Equinox FWD LT with an MSRP of $30,795. Based on due at signing amount of $3,259 (after all offers). 36 monthly payments total $8,964. Must show proof of lease. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Lessee pays for maintenance, repair, excess wear and disposition fee of $395 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers. Take new retail delivery by 08-03-2026.

*Offer includes all dealer discounts and OEM incentives. Offer does not include tax, tag, title, fees, and other dealer installed options. Discount varies by model and stock number. Example stock #T29292. See dealer for details. Take retail delivery by 8/3/26. **3.9% APR for 60 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $18.37 for every $1000 you finance. Average down payment is 18%. Some customers will not qualify. Take new retail delivery by 08-03-2026. Must be a current owner of a 2012 model year or newer non-GM vehicle or a current lessee of a 2012 model year or newer non-GM vehicle for at least 30 days prior to new vehicle sale. Customer will be eligible to use this offer towards the supported purchase of one of the new select models. Not available with lease and some other offers.

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Rick Hendrick Chevrolet Richmond 37.6588, -77.6309.