Ive been experiencing intermittent start failures with my 2015 Volkswagen Jetta. The issue typically occurs after driving short distances, turning off the engine, and attempting to restart the vehicle within 15’45 minutes. The dashboard lights stay on, but the engine fails to crank. After extended wait times (1’3 hours or more), it will sometimes start again. A diagnostic scanner showed DTC IM 00, indicating an immobilizer system malfunction, meaning the car isnt recognizing the key properly. Ive tested both keys and various conditions (locked/unlocked, sun/shade, full/low gas tank), and the issue continues to be unpredictable. When the car was towed to the dealership, they were unable to replicate the problem since it started by the time they checked it, and they were unwilling to investigate the immobilizer issue without charging me for a wide range of unrelated tests. This is becoming a safety issue, especially if the vehicle stalls or wont restart in isolated areas or during hot conditions. It is not acceptable for a known electronic security feature to randomly disable the vehicle from functioning.