Maintenance On Hybrid Cars. Maintenance needs and safety requirements for hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) are similar to those of conventional vehicles, while all-electric vehicles (EVs) require less maintenance. Manufacturers are designing these vehicles and publishing guides with maintenance and safety in mind.

Routine maintenance costs on a hybrid may be lower than on a regular car.
When comparing hybrid vehicle maintenance to conventional car maintenance, most automakers don't mention anything out of the ordinary; some don't even differentiate between hybrid and non-hybrid versions of the same model.
Normally, routine maintenance and minor repairs are no higher on a hybrid than on a regular car. The maintenance cost is higher since a BEV does not have engine oil, a timing belt, spark plugs, and other items. Maintenance needs and safety requirements for hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) are similar to those of conventional vehicles, while all-electric vehicles (EVs) require less maintenance.