Can the Infotainment System o r Keyless Entry Be Draining My Tucson’s Battery?

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Can the Infotainment System o r Keyless Entry Be Draining My Tucson’s Battery?

Even when the vehicle is turned off, I’ve noticed that the infotainment screen sometimes lights up o r the system seems partially active. Could the multimedia unit o r the smart key system in the Tucson be draining the battery while the car is parked?

Gari Specialist asked on 14 Jun 2025 11:45:01 am

1 Answer

9 views |

Gari Master - on 14 Jun 2025 11:46:37 am

Yes, both the infotainment system and smart key modules can cause standby drain, especially if they stay in a semi-active state. Common culprits include:

Infotainment screen not shutting down completely.

Proximity sensors for smart key constantly searching for the key fob.

Bluetooth o r connected services staying live due to software bugs.

How to minimize this:

Make sure the infotainment system is completely off before leaving the car.

Turn off Bluetooth o r Wi-Fi if not in use.

Keep the smart key away from the vehicle at least 10-15 feet when parked to prevent proximity sensing.

If the problem persists, ask the dealership to perform a firmware update o r system reset.