Adolescence is a difficult age, of course, but not hopeless. A competent approach and understanding, avoiding conflict situations - all this will help adults find a common language with their matured child.
Understand
In adolescence, all problems are exacerbated, even if they are not so important in the eyes of the parents. If a child rebelles, you need to find a reason, it is always there. To do this, you should bring him to the conversation as gently as possible. Talking to and participating in the teen's problems will build trust. He cannot always cope with his problems alone, for this, parents are needed.
Ask
You should not categorically order a teenager to do something. It would be better to ask, to indicate the importance and need for his help, and then the achievement of the desired will be closer.
Listen
Naturally, everything is not simple. The teenager may refuse to comply with the request. In this case, you do not need to shout and reproach him, try to find out why he does not want to do it. Perhaps he has some important things planned for this time. Ask them to postpone or reschedule, or help later when he is free. Do not forget that at this age he is no longer a child and is also making some plans.
Encourage
If the teenager flatly refuses to help, even after the conversation, try giving him an incentive. Offer him for help what he wants to receive for a long time. The encouragement will not negatively affect his personality, but it will help to establish contact between the parent and the child.
In a situation where the teenager still refuses to comply with the request, in no case go to aggression. This will not help, but only exacerbate the situation. The parent is older, wiser and more experienced, and he must show an example of how to behave even in such a conflict environment. The teenager must understand that all the same he will have to do what is wanted of him, regardless of whether he wants to or not. Calmness and monotony in the voice, and steadfastness in the decision will make him agree.
Each child is unique and you need to look for your own approach to each, but if it is difficult to cope with a specific situation, contact a qualified specialist. The book by D. Gray "Children from Heaven, Education Lessons" will be an excellent help in this matter.