Third brake light (CHMSL) failure without dash warning
EXTERIOR LIGHTING
9 NHTSA complaints · 2024-05 → 2026-02
“The LED center high-mounted stop lamp, more commonly called the 3rd brake light, failed”
“The third brake light on the Gladiator is a known issue. When it goes out, there is no warning on the dash or error code”
“The third brake light, located on the tailgate of the 2021 Jeep Gladiator, has ceased to function due to a failure within the printed circuit board (PCB) inside the light housing”