* Your vehicle's owner's manual: This will provide the most accurate information on the battery type and size required for your specific model.
* The existing battery: Check the battery itself for information about the manufacturer, size, and specifications.
* A local auto parts store: They can help you find the correct battery by providing your vehicle's year, make, and model.
* An online parts store: Search for your vehicle's year, make, and model to find compatible batteries.
Important Considerations:
* Cold Cranking Amps (CCA): The CCA rating is essential for starting your car in cold weather.
* Reserve Capacity (RC): RC indicates how long the battery can provide power without being recharged.
* Battery Size: Ensure the new battery fits in the battery compartment.
Remember, it's crucial to choose a battery that meets the specific requirements of your 2001 Hyundai Elantra GLS. Consult the sources above to find the correct type.