In most cases, the answer is “no,” with an occasional “maybe.” If you signed the sales contract, you own the car. And the law is on the side of the seller.
The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine. In many cases, it means that you’ll need to visit a repair shop to diagnose and repair the issue.
Understanding what an axle ratio is and which axle ratio is right for you will improve the driving experience in your next truck and give you enough capability to tow whatever trailer you’ve got in mind.
Have backup picks in colors and even a range of different models to give yourself the most flexibility. If you’re having trouble locating a certain model, consider its equivalent at another brand.