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Weak FOB and vehicle battery issues are common with the Hyundai Santa Fe push button start. Battery problems can occur throughout the vehicle's lifespan, such as leaking fluid, sudden death, or a cracked case. Recharging or replacing the battery will be necessary when these issues arise. The battery may drain quickly and require fixing, eventually becoming inefficient. Replacement is typically needed every 50,000 to 60,000 miles, which can be a costly but necessary expense to ensure your car keeps running smoothly.
Certain issues that may arise with the push button ignition system in a 2019 Hyundai Santa Fe are attributed to a discharged battery, a defective start button, problems with the powertrain control module (PCM), or a blown fuse.
Related to problems with sensors