This information will also help you understand your rights if you have a problem with a repair shop. Here's what the Bureau of Automotive Repair (BAR) recommends: 1) read and follow your owner's manual. 2) select a repair shop before you need one, but be sure it is registered with BAR. 3) know your rights as a consumer. 4) keep this guide in your car and refer to it before taking your car in for service.