2 complaints reported

2021 BMW 3 Series UNKNOWN OR OTHER

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
2
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Feb 2026

While driving approximately 70 mph on the highway, my vehicle’s sunroof suddenly and violently shattered without any warning. There was no impact from debris, no vehicle in front of me throwing objects, and no prior damage to the glass. The explosion was extremely loud, resembling a gunshot. The sunroof glass appeared to burst outward and then collapse inward, sending broken glass downward. Thankfully, my vehicle has a canvas sunshade beneath the sunroof, which was closed at the time. The sunshade prevented glass from falling directly onto me and my passenger. Without the shade, we likely would have sustained injuries from falling and flying glass. There were no road hazards, weather anomalies, or external impacts that could have caused this failure. The failure appears to be spontaneous. This incident created a significant safety hazard due to: The sudden loud explosion at highway speed The potential for serious injury from falling glass The risk of loss of vehicle control due to distraction or injury The possibility of future occurrences in similar vehicles I believe this may be a manufacturing defect involving the tempered glass panel.

Type: Vehicle, Vehicle: 2021 BMW 330I, Manufacturer: BMW of North America, LLC
Incident: Feb 2026
Sep 2025

I just became aware from Consumer Reports about an upcoming recall on BMWs because of a potential fire hazard with the engine starter relays. I own a 2021 BMW 330i which is one of the models listed. I entered my VIN on the NHTSA and BMW websites and both sites indicated my vehicle has no open recalls. According to NHTSA, BMW will start notifying owners on November 14 about the recall. In the Consumer Reports article and several other articles I read about the recall, owners are being directed to park their vehicles outside and away from buildings and other vehicles. Owners are expected to wait until November 14 to see if their specific vehicle is included in the recall. This is not acceptable! NHTSA needs to hold BMW and other manufacturers accountable for informing owners of a recall in a timely manner; a month and a half delay in notification is unacceptable. Owners need to know if their specific vehicle is one of the ones being recalled. I understand the potential delay in scheduling the repairs because of a shortage of parts. However, there should not be a delay in informing owners about the recall status of their specific vehicles. Please escalate this to whomever is involved in the decision making process at NHTSA.

Type: Vehicle, Vehicle: 2021 BMW 330I, Manufacturer: BMW of North America, LLC
Incident: Sep 2025

Trend Over Time

Complaints by year

Quick Summary

The 2021 BMW 3 Series has 2 UNKNOWN OR OTHER complaints on file. Review the timeline above for detailed owner experiences.