From the 2024 Alcazar's owners' manual:
"Rear passenger's seat belt warning
• As a reminder to the rear passenger, the rear passenger's seat belt warning lights illuminates for about 6 seconds each time the Engine Start/Stop button is in the ON position regardless of seat belt fastening.
• If the seat belt is not fastened when the Engine Start/Stop button is in the ON position, the seat belt warning light will illuminate for about 70 seconds.
• If the passenger continues to not fasten their seat belt or unfasten their seat belt and you drive under 20 km/h (12 mph), the corresponding warning light continues to illuminate for about 70 seconds.
• If the passenger continues to not fasten their seat belt or unfasten their seat belt and you drive over 20 km/h (12 mph), the seat belt warning chime sounds for about 35 seconds and the
corresponding warning light blinks.
• If the rear door is opened or closed under 10 km/h (6 mph), the seat belt warning chime and corresponding warning light does not work even if you drive over 20 km/h (12 mph)."