because you didn't make the turn yet?
Normally this is caused by a weak ground at the left turn signal bulb.
The brake light switch on a Nissan is located just behind the brake pedal. It sends a signal to the brake lights when the pedal is pressed to turn them on.
You should turn on your turn signal before you need to brake for the turn.
In many cases, the brake light and the turn signal use the same bulb.
Since most brake/turn use the same filament in the bulb(1157) then if the turn signal switch is bad or offset then it will effect the brake lights.
check the multifunction (turn signal) switch
the turn signal switch sends current to the turn signal flasher. it then goes to the bulb. The turn signal switch will turn on the turn signal and when the brake is applied it cancels out the brake light as it is a duel element bulb. 1 element is for brake and turn and the other is for parking lights. you can not have a blinker and a constant feed to the same element of the bulb at the same time.
If parking lights stay on after the car is turned off on a 2001 Hyundai Elantra than the brake switch is malfunctioning. The brake switch turns off when pressed in and if it does not work the lights of the vehicle will stay on.
short circuits in the turn signal and brake light circuits
One of two things. Either the brake light switch behind the brake pedal. Or try wiggling or rotating your turn signal stalk in a circle motion. If the brake lights work when the turn signal stalk is wiggled then you need to replace the turn signal stalk.
check and make sure all the lights are on like if a turn signal is out in the front then the signal will stay on in the back when you turn the turn signal on.
The turn signal wiring goes up the steering column. Turn signal bulbs are also used as brake lights and the brake light signal goes through the turn signal switch. If there is a loose connection or worn wire in the steering column, the tilt would cause problems.