Adaptive Cruise Control problems of the 2023 Volkswagen Tiguan

On September 14, 2026, my 2023 Volkswagen Tiguan sel r-line experienced a sudden electronic/system failure while the vehicle was in use. The infotainment system entered a continuous reboot cycle and subsequently displayed a black screen. At approximately the same time, the sos/emergency-call indicator illuminated red and the vehicle/app reported “emergency call function limited! service vehicle. ” multiple vehicle functions then became unavailable, including front assist/automatic emergency braking, cruise control, navigation, compass, and dynamic road sign display. The instrument cluster displayed active warnings, and the dynamic road sign display fault generated a loud warning chime approximately every 30 seconds while driving. The repeated audible warning was significantly distracting. Attempts to restart the infotainment system and completely power-cycle the affected systems did not restore normal operation. Disconnecting and reconnecting the 12-volt battery also did not correct the original failure. The vehicle was subsequently taken to an authorized Volkswagen dealership for diagnosis. I am reporting this because the failure was not limited to entertainment or convenience equipment. The electronic failure coincided with loss of multiple driver-assistance functions, including front assist/automatic emergency braking, as well as loss of the vehicle’s sos/emergency-call capability. The repeated warning chimes also created an additional distraction while operating the vehicle. The vehicle is currently at an authorized Volkswagen dealership awaiting diagnosis/repair. Volkswagen customer care case 07734827 has been opened regarding the incident.