Damaged axle hub splines can result in a vehicle rollaway when the vehicle is in park without the parking brake applied or cause a loss of drive power. Both of these conditions can increase the risk of a crash.
An improperly connected cable that overheats can increase the risk of a fire. Additionally, a vehicle fire may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
An inadequate seal can allow fuel and oil to leak onto the road, creating a hazard for other road users and increasing the risk of a crash. Additionally, a fuel and oil leak in the presence of hot engine components can increase the risk of a fire.