Diagsheet

2021 Ford Mustang Mach-E · symptom sheet

Adaptive cruise or lane keeping misbehaves

  • 71owner reports
  • $3,593median quote
  • 1involved a crash

Newest report Jun 22, 2026 · checked Sep 9, 2026

124 of the 343 complaints on this car are about collision avoidance. 71 of those describe driver assist, which makes it the most reported problem on the 2021 Mustang Mach-E.

Tick what matches of 71 reports

9
4
14
24
15

What got replaced

Owners who name the part that was replaced mention the camera (49 reports) and the software (16 reports).

Recalls and investigations

One recall on collision avoidance covers the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.

22V-333May 13, 2022
Vehicle Speed Control

Ford Motor Company (Ford) is recalling certain 2021 Mustang Mach-E vehicles equipped with all-wheel drive. The powertrain control module (PCM) functional safety software may fail to detect a software error, resulting in unintended acceleration, unintended deceleration, or a loss of drive power.

Risk and remedy
Risk: Unintended acceleration, unintended deceleration, or a loss of drive power increases the risk of a crash.
Remedy: The PCM software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed June 9, 2022. Owners may contact Ford customer service at 1-800-436-7332. Ford's number for this recall is 22S29.

What owners paid

5 of the 71 reports quote a price. Each dot is one quote. The middle half runs $2,806 to $7,000.

$2,806$3,593$7,000
$0k$2k$4k$6k$8k

When it happens

Too few of these reports state a mileage to give a range.

121
1322
1823
2124
1325
526

What owners wrote

“Front camera stopped working after a long period of working intermittently (started to happen after passing warranty at 30,000 miles). Without that camera many safety features are disabled, like a front collision warning, lane departure, cruise control with adoptive speed, emergency breaking. The cable and processor issue was confirmed by Ford dealership service.”

Filed Oct 10, 2024 · 30,000 miles

“Occasional failure of video signal from front camera located above rear view mirror causes Alert pop-up on main instrument display and loss of all Driver Assist feature that utilize the front camera such as: lane departure alert and adaptive cruise control.”

Filed Jan 12, 2023

“While driving and hitting a bump I will get a message in the driver's display stating Forward collision assist unavailable. This causes almost all of the ADAS features to stop working including cruise control and blue cruise. This is very dangerous! There is a huge thread on this issue at the macheforum.com. The issue needs to be addressed by Ford Motor Company in a recall.”

Filed Jan 9, 2023

“Sudden failure of front cameras. Sudden loss of adaptive cruise control and front collision early detection system as well.”

Filed Oct 22, 2022

Should you keep driving it?

This page can't tell you that. 1 of 71 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

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