In the quest for environmentally friendly transportation options, electric and hydrogen vehicles have risen as key contenders. While electric vehicles (EVs) have been more popular in recent years, hydrogen fuel cell vehicles (FCVs) offer a promising alternative. EVs operate using battery packs, while FCVs utilize hydrogen gas to power electric motors through fuel cell stacks, generating electricity with only water vapor as a byproduct. One of the main advantages of FCVs is their fast refueling time and long driving range, addressing issues like range anxiety often associated with EVs. Despite EVs being more cost-effective in terms of maintenance, with fewer moving parts and no need for oil changes, the increasing presence of FCVs on the roads highlights the importance for technicians to be adept in servicing both types of vehicles. As the automotive industry continues to shift towards sustainable practices, technicians need to be prepared for the maintenance and repair requirements of electric and hydrogen vehicles in the foreseeable future.