How long should I cook a stew on auto slow cooker?

For a slow cooker, stews typically need to cook for about 6 to 8 hours on the low setting or 3 to 4 hours on the high setting. The longer cooking time allows the flavors to meld and the meat to become tender. Always check that the meat is fully cooked and the vegetables are tender before serving. Adjust the cooking time based on the specific recipe and your slow cooker model.