
Cadillac CT6 battery warranty is 1 year. The following are precautions for daily battery use: Long-term parking of the car: You can disconnect the two electrodes on the battery. Note that when removing the positive and negative electrode wires from the electrode posts, remove the negative wire first, or disconnect the negative terminal from the car chassis. Then remove the other end marked with the positive terminal. During daily driving: Regularly check whether the small holes on the battery cover are ventilated. If the small holes on the battery cover are blocked, the generated hydrogen and oxygen cannot escape, and when the electrolyte expands, it will break the battery casing, affecting the battery's lifespan. When starting the car: The total duration of each engine start should not exceed 5 seconds, and the interval between restarts should be no less than 15 seconds. If the car still does not start after multiple attempts, check other aspects such as the circuit, ignition coil, or fuel system for issues.

I've been using this Cadillac CT6 for over three years and have done some research on battery issues. The official warranty for the standard CT6's starter battery is 1 year or 20,000 kilometers, whichever comes first, which is much shorter than the 3-year warranty for the entire vehicle. The hybrid version's power battery has a much longer warranty, 8 years or 160,000 kilometers. Last time, my starter battery failed just two months after the warranty expired, and I regret not paying attention earlier. I recommend paying special attention to the battery condition in the first year of a new car, as frequent short-distance driving is most likely to cause battery drain. A replacement original battery costs around 2,000 yuan, but a Varta battery of the same specifications on the market can be 30% cheaper.

When I was buying a car, the salesperson told me that the Cadillac CT6 has two types of battery warranties: the regular starter battery is covered for 1 year or 20,000 kilometers, while the hybrid version's large battery pack is warranted for 8 years or 160,000 kilometers. My fuel version is now a year and a half old, and I always have the technician check the battery health during every maintenance. I heard that the low winter temperatures in the north are particularly harsh on batteries, so I always change the antifreeze in advance to cope. If the auto start-stop system is frequently active, the battery load is heavy, and it might not last more than three years before needing replacement.

The warranty period for the Cadillac CT6's battery is 12 months or 20,000 kilometers. As a consumable part, its warranty is significantly shorter than that of the engine or transmission. In practical use, most original batteries last about three years, but extreme temperatures or the installation of high-power electrical accessories can reduce their lifespan. The warranty for the hybrid model's drive battery pack is 8 years. When replacing the battery after the warranty expires, pay attention to the cold cranking amps (CCA) rating—the CT6 requires a specification of at least 760A. During installation, it's crucial not to disconnect the power, as this could result in the loss of the vehicle's computer data.


