Nissan X-Trail 2024 Owners Manual
7.23.3. System malfunction
If the Intelligent Driver Alertness system malfunctions, it will be turned off automatically, the Intelligent Driver Alertness indicator light (yellow) will illuminate and the [System fault See Owner’s Manual] warning message will appear in the vehicle information display.
Action to take
If the indicator light (yellow) illuminates, pull off the road to a safe location and stop the vehicle. Turn the engine off and restart the engine. If the indicator light (yellow) continues to illuminate, have the system checked. It is recommended that you visit a NISSAN dealer or qualified workshop for this service.
Owners Manual