2021 Ford Mustang Mach E Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 334 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Ford Mustang Mach E overview page.
What owners report
“The HVBJB subassembly in ALL Ford Mach-e vehicles has known defects with 'under-designed' main contactors that are known to fail under normal charging and driving…”NHTSA complaint 11475208 — filed 07/21/2022
“The HVBJB subassembly in ALL Ford Mach-e vehicles has known defects with 'under-designed' main contactors that are known to fail under normal charging and driving…”NHTSA complaint 11472877 — filed 07/08/2022
“Power loss a week ago. Had to have Mach E towed to dealership. Ford is aware of Mach E power loss.”NHTSA complaint 11470363 — filed 06/22/2022
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2021 Ford Mustang Mach E have transmission & power train problems?
Power Train is the #5 most-reported problem area on the 2021 Ford Mustang Mach E: 47 of 334 complaints on file (14.1%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2021 Ford Mustang Mach E have in total?
334 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 13 involved a crash, 1 involved a fire, 9 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
