Hyundai Sonata battery issue causing complete shutdown and key fob malfunction, replacement on back order for four weeks on Hyundai Sonata

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Hyundai Sonata owners report experiencing frustrating battery issues that lead to a complete shutdown of the vehicle and key fob malfunctions. These problems can be exacerbated by delays in battery replacements, which may be on back order for up to four weeks, prompting owners to seek alternative transportation options during this time. Additionally, some owners find that a malfunctioning key fob is often linked to a dead or weak battery, necessitating a check and possible replacement of the key fob battery. Troubleshooting steps, such as ensuring proper installation and eliminating interference from other devices, are recommended to resolve key fob detection issues. For those facing challenges with battery or key fob replacements, seeking assistance from the dealership can provide valuable guidance. While waiting for back-ordered replacements, some owners emphasize the importance of patience and monitoring updates from the dealership regarding the replacement timeline.

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