What are the reasons for no response when pressing the one-button start in a Cadillac SRX?

[DelSara]

When the vehicle's smart key runs out of battery, the key's transmission power becomes very low, making it difficult for the in-car sensor to detect it. As a result, the one-button start fails to initiate ignition. If pressing the one-button start in a Cadillac SRX yields no response, possible reasons include: 1. Engine system malfunction; 2. Body network failure; 3. Anti-theft system malfunction. Additional information: One-button start principle: Utilizing Radio Frequency Identification (RFID) technology, the system automatically locks or unlocks the doors by sensing the chip in the smart card carried by the owner. When the owner approaches the vehicle, the car automatically recognizes the owner's identity, unlocks the doors, and deactivates the anti-theft system—eliminating the need to search for keys in pockets or handbags.