There's no definitive answer to this question as it depends on the specific car grab handle and the weight of the person using it. However, most car grab handles are designed to support at least 200 pounds, so they can definitely be a lifesaver if you need to pull yourself up and out of a car. If you're concerned about whether or not your car grab handle can support your weight, it's always best to err on the side of caution and use another method to get in and out of your car.