Some Kia Sportage owners report experiencing oil leaks accompanied by smoke from under the vehicle when braking, which could indicate serious underlying issues. Common causes of these oil leaks include worn-out gaskets and cracked oil pans, both of which can lead to significant engine damage if not addressed promptly. Symptoms such as oil spots on driveways and smoke during braking are clear signs of potential oil pan problems. Owners are advised to consult a professional mechanic for a proper diagnosis and repair, as the costs can vary based on the severity of the leak. Additionally, some Kia Sportage models have been subject to recalls related to oil leaks, and certain issues may be covered under extended warranties. Prompt attention to these oil leak concerns is crucial to maintain the vehicle's health and performance.