Chrysler Group announced May 9 it is replacing the power inverter module (PIM) in an estimated 4,141 Fiat 500e electric cars to prevent coolant seepage that may cause power loss while driving.

A PIM alters electric current to accommodate battery-powered propulsion.

Fiat explained a routine warranty data review prompted an investigation, during which Chrysler Group engineers discovered a PIM defect that may, over time, seep coolant onto electrical components, causing a short-circuit leading to power loss.

Chrysler Group said it is aware of five such incidents. The Company also said it is unaware of any related injuries or accidents.

Chrysler Group opted to replace PIMs in model-year 2013-14 Fiat 500e vehicles assembled between Sept. 24, 2012 and April 4, 2014. Affected customers, all of whom are in the U.S., will be contacted directly and advised when they may schedule service.

Fiat stated associated costs will be borne by the Company.