One of the easiest ways to find out if customers are satisfied is also one of the simplest: Ask them. When customers are on the phone or in your store, ask them if all of their needs have been met.
To get a better response, ask open-ended questions like: "How else can we best meet your needs?" or "What can we do to make your experience with our dealership better?"
Customers, dissatisfied or not, will give you some candid insights you can use to improve relationships with all customers.
Studies have revealed that customers who have had their complaints resolved in a timely manner may become more loyal to a business than customers who did not have a complaint in the first place.
Another way to get feedback is to encourage customers to fill out questionnaires before leaving. Offer a discount for filling out the form.
Additionally, maintain contact with customers after the original sale. Future sales and customer referrals may depend on it.
– Source: Tire Review Business Toolbox