A dead Cadillac CT5 every morning usually points to a parasitic electrical draw. Here are the likely causes, what to check first, and whether it’s safe to keep driving.
If your Cadillac CT5 is dead every morning even though you drove it normally the day before, you're dealing with a classic parasitic draw. Something in the car is staying awake or powered up after you shut it off, slowly pulling the battery down overnight. On the CT5, with its many networked modules and keyless features, this is usually not a mystery battery failure; it's a module, relay, or accessory that isn't going to sleep.
