Repair Procedures: Adjustment

WARNING: This page is about a different car, the 2016 Hyundai Veloster. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Remove the lower crash pad. (Refer to CRASH PAD )
Remove the knee airbag. (Refer to AIRBAG MODULE )
Confirm the gap between stop lamp switch and bracket.
Stop lamp clearance : 1.0 ~ 2.0 mm (0.04 ~ 0.08 in.)

Fig 1: Identifying The Gap Between Stop Lamp Switch And Bracket
Courtesy of HYUNDAI MOTOR AMERICA
If the gap between stop lamp switch and bracket is not 1.0~2.0mm (0.04~0.08in), check the mounting clip and other part of around stop lamp.
If there is normal, remove the stop lamp switch and then install again.