How many 2021 Mustang Mach-E fuel system complaints does NHTSA have on file?

NHTSA lists 47 complaints in the Fuel System category for the 2021 Mustang Mach-E, which is 14% of the 344 total complaints filed for that model year.

Is there a recall for the 2021 Mach-E fuel system issue?

The data provided shows no related recalls listed for this Fuel System problem area on the 2021 Mustang Mach-E.

What do owners describe as the main problem?

Owners describe "Stop Safely Now" warnings linked to the high-voltage battery junction box, causing the car to be unable to shift out of Park or to lose power while driving.

Did any of these complaints involve a crash or fire?

NHTSA data shows 1 crash and 0 fires associated with the 2021 Mustang Mach-E Fuel System complaints, with 0 injuries reported.

Does this problem show up in other Mach-E model years?

Yes. NHTSA lists 21 Fuel System complaints for 2022, 12 for 2023, 6 for 2024, and 1 for 2025, though the 2021 year has the highest count at 47.

2021 Ford Mustang Mach-E Fuel System Problems

NHTSA lists 47 Fuel System complaints for the 2021 Ford Mustang Mach-E, 14% of all 344 complaints filed for the year. Most describe "Stop Safely Now" shutdowns tied to the high-voltage battery junction box, not a traditional gas fuel system. No related recall is listed in NHTSA data for this problem area.

Fuel System complaints: 47; 14% of 344
Crashes reported: 1
Fires reported: 0
Injuries reported: 0
Median mileage: —
Related recalls: 0

Typical fuel system symptoms owners report

Vehicle displays a "Stop Safely Now" warning and will not shift out of Park, sometimes leaving the car stranded in traffic or a parking area.
Owners describe the failure as tied to the High-Voltage Battery Junction Box (HVBJB), which some say needed replacement after the vehicle would not start.
Some drivers report a sudden loss of power or a hard jolt while driving at highway speed, followed by the same "Stop Safely Now" message.
Owners attribute the issue to an under-specified high-voltage battery joint assembly bracket, saying a software fix does not correct the underlying part.
One complaint describes unexpected acceleration into a wall while parking in a garage, resulting in a crash.

When 2021 Ford Mustang Mach-E fuel system complaints were filed

First complaint Feb 28, 2022, latest Aug 6, 2026.

47 complaints filed with NHTSA from Feb 2022 to Aug 2026; peak Jul 2022 (11).

Fuel System recalls for the 2021 Ford Mustang Mach-E

No safety recalls on record for this model year.

Fuel System complaints by Mustang Mach-E model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

202147 (14%)
202221 (15%)
202312 (10%)
20246 (14%)
20251 (8%)

Frequently asked questions

How many 2021 Mustang Mach-E fuel system complaints does NHTSA have on file?: NHTSA lists 47 complaints in the Fuel System category for the 2021 Mustang Mach-E, which is 14% of the 344 total complaints filed for that model year.
Is there a recall for the 2021 Mach-E fuel system issue?: The data provided shows no related recalls listed for this Fuel System problem area on the 2021 Mustang Mach-E.
What do owners describe as the main problem?: Owners describe "Stop Safely Now" warnings linked to the high-voltage battery junction box, causing the car to be unable to shift out of Park or to lose power while driving.
Did any of these complaints involve a crash or fire?: NHTSA data shows 1 crash and 0 fires associated with the 2021 Mustang Mach-E Fuel System complaints, with 0 injuries reported.
Does this problem show up in other Mach-E model years?: Yes. NHTSA lists 21 Fuel System complaints for 2022, 12 for 2023, 6 for 2024, and 1 for 2025, though the 2021 year has the highest count at 47.