Buick Enclave recurring issue with unspecified error code and system failure on Buick Enclave

Some Buick Enclave owners report experiencing recurring issues, including unspecified error codes and system failures. Common problems include transmission issues that manifest as shaking or clunking sensations during acceleration or gear changes. Additionally, certain model years (2012-2015) may face HVAC actuator problems, while first-generation models (2008-2017) are known for stretched timing chain issues. Later models have reported brake problems, and many owners experience electrical system failures that lead to various malfunctions and warning lights. Engine issues such as frequent stalling and misfires are also reported, along with power steering pump failures characterized by leaking fluid and difficulty turning the steering wheel at low speeds. These issues can significantly impact the vehicle's performance and reliability, making it crucial for Buick Enclave owners to address them promptly to avoid costly repairs.