Hyundai Sonata: Warning Lights / Charging System Warning Light

If this warning light comes on while the engine is running, the battery is not being charged. Immediately turn off all electrical accessories. Try not to use electrically operated controls, such as the power windows. Keep the engine running; starting the engine will quickly discharge the battery.

If there is a malfunction with either the alternator or electrical charging system:

1.Drive carefully to the nearest safe location and stop your vehicle.

2.Turn the engine off and check the alternator drive belt for looseness or breakage.

If the belt is adjusted properly, there may be a problem in the electrical charging system.

In this case, have your vehicle inspected by an authorized HYUNDAI dealer.

Malfunction Indicator Lamp (MIL)
This warning light illuminates: Once you set the ignition switch or Engine Start/Stop button to the ON position. - It remains on until the engine is started. When there is a malfunction with the ...

Engine Oil Pressure Warning Light
This warning light illuminates: Once you set the ignition switch or the Engine Start/Stop button to the ON position. - It remains on until the engine is started. When the engine oil pressure is ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: System Maintenance
Climate control air filter This filter is installed behind the glove box. It filters the dust or other pollutants that enter the vehicle through the heating and air conditioning system. Have the climate control air filter replaced by an authorized HYUNDAI dealer according to the maintenance sched ...

Hyundai Sonata LF 2014-2019 Owners Manual: Power Brakes
Your vehicle has power-assisted brakes that adjust automatically through normal usage. If the engine is not running or is turned off while driving, the power assist for the brakes will not work. You can still stop your vehicle by applying greater force to the brake pedal than typical. The stoppin ...

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