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There is a switch located on your brake pedal arm that turns on and off your brake lights as you brake. The switch is either defective or needs adjusting. The switch is nothing more than a button that is pressed when you release your brake pedal. If you follow your brake pedal arm upwards, you'll find a small plastic mechanism with two wires coming from them (the switch) and you can adjust it by turning a round nut to bring the switch closer or farther away from the arm of your brake pedal. If your button of your switch is not touching the arm your lights will remain on. The arm is suppose to press the button when you release the brake. If however your arm is pressing the button, check to make sure the two wires are not touching in any way. If all looks find and your lights are still on, replace the switch by unscrewing the nut of the switch all the way off and the switch will come down far enough for you to unplug the wires. Installation will be the reverse. Hope this helps.

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17y ago
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12y ago

2003 Hyundai Elantra BulbTroubleshooting (check in this order):

· Check Bulbs

· Check Relay(s)

· Check Light Switch(es)

· Check license plate light bulb and wiring

· Check trailer hitch wiring harness

· Check all wiring harnesses and wire

Most likely its bad bulb or connection shorting the circuit. Sometimes the license plate light/wiring and/or the trailer hitch is wired into other circuits and can cause issues in other areas. Sometimes its wires grounding out somewhere on the vehicle. See sources and related links below for bulb information. See owner's manual for location and identification of fuses.

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Q: Why 2003 Hyundai Elantra hatchback gt rear brakes lights stay on?
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