2021 Bmw X4 Safety Report
2021 BMW X4 Safety Report
Safety Decision Cockpit for the 2021 Bmw X4
This page is the hub for deciding what to inspect next on the 2021 Bmw X4. It connects recall campaigns, owner complaint patterns, service bulletins, sibling model years, component issue hubs, and the model buying guide so a shopper or owner can move from a single report into the wider safety graph.
| Signal | Value | What to inspect next |
|---|---|---|
| Recall burden | High (7) | Review campaign numbers, affected components, and dealer remedies below. |
| Owner complaints | Low (5) | Scan complaint narratives for recurring symptoms, mileage, crashes, fires, injuries, and dates. |
| Crash and fire reports | 0 | Treat any crash, fire, injury, or fatality-linked pattern as a priority pre-purchase inspection item. |
| Primary component hub | Seat Belts | Compare seat belts issues across vehicles. |
| Cleaner nearby model year | 2024 | Compare against the 2024 Bmw X4 with 2 complaints and 1 recalls. |
| Riskier nearby model year | 2020 | Check the 2020 Bmw X4 before buying across this generation. |
Bmw X4 Year-by-Year Comparison
The safest purchase decision usually comes from comparing neighboring model years, not reading a single page in isolation. The table below uses only validated Bmw X4 years already present in the cleaned NHTSA dataset, so each comparison links to a real vehicle safety report rather than a generated combination.
| Model Year | Complaints | Recalls | Use case |
|---|---|---|---|
| 2022 Bmw X4 | 3 | 5 | Compare as a potentially cleaner alternative. |
| 2020 Bmw X4 | 13 | 10 | Inspect as a potentially higher-complaint year. |
| 2023 Bmw X4 | 4 | 2 | Compare as a potentially cleaner alternative. |
| 2019 Bmw X4 | 9 | 7 | Inspect as a potentially higher-complaint year. |
| 2024 Bmw X4 | 2 | 1 | Compare as a potentially cleaner alternative. |
| 2018 Bmw X4 | 11 | 1 | Inspect as a potentially higher-complaint year. |
2021 Bmw X4 Complaint Theme Map
Complaint counts become more useful when they are grouped into inspection themes. For the 2021 Bmw X4, these are the component areas with the clearest NHTSA complaint signals. Use each link to jump from this single vehicle into broader component hubs and make-specific issue pages.
Seat Belts
2 owner complaints mention this component in the current safety profile.
All Seat Belts issues Bmw onlyEngine
1 owner complaint mention this component in the current safety profile.
All Engine issues Bmw onlyUnknown Or Other
1 owner complaint mention this component in the current safety profile.
All Unknown Or Other issues Bmw onlySuspension
1 owner complaint mention this component in the current safety profile.
All Suspension issues Bmw onlyAI Safety Analysis for the 2021 Bmw X4
Reliability Score
The 2021 Bmw X4 receives a reliability score of 87 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates above-average reliability relative to comparable vehicles.
Known Issues for the 2021 Bmw X4
The following issues have been identified from NHTSA complaint data and owner reports for the 2021 Bmw X4:
| Issue | Severity | Frequency | Typical Mileage |
|---|---|---|---|
| Seat Belt Failure Two rear seat belts have broken off in the same spot, indicating a potential manufacturing defect. |
High | Common | 30k-60k miles |
| Transfer Case Failure A transfer case failure was diagnosed on the BMW X4 xDrive, which can affect drivetrain performance and safety. |
Medium | Common | 30k-60k miles |
Common Problems Reported by Owners
Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2021 Bmw X4:
Two rear seat belts have broken off in the same spot.
A transfer case failure was diagnosed on the BMW X4 xDrive.
Recall Details for the 2021 Bmw X4
The following 7 recalls have been issued for the 2021 Bmw X4 by NHTSA:
Summary: BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.
Consequence: Fire increases the risk of injury.
Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters are expected to be mailed March 24, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
Summary: BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
Consequence: A short circuit in the starter relay may increase the risk of a fire.
Remedy: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 14, 2025...
Summary: BMW of North America, LLC (BMW) is recalling certain 2019-2021 330i, 330i xDrive, M340i xDrive, 2020-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, 2021 X3 xDrive30e, X4 xDrive30i, and X4M vehicles. The seat frame may not have been welded properly to the seat rails.
Consequence: An improperly welded seat frame may not properly restrain the occupant during a crash, increasing the risk of injury.
Remedy: Dealers will replace the seat frame and back rest, free of charge. Owner notification letters were mailed May 22, 2023. Owners may contact BMW customer service at 1-800-525-7417.
Summary: BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.
Consequence: Loss of braking assist can increase the risk of a crash.
Remedy: Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Summary: BMW of North America, LLC (BMW) is recalling certain 2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, and X4, and 2021 X4 xDrive30i vehicles. The inlet check valve weld may fail, allowing the filling pipe to separate from the fuel tank.
Consequence: Fuel may leak through the failed weld, increasing the risk of a fire.
Remedy: BMW will notify owners, and dealers will replace the fuel tank, free of charge. The recall is scheduled to begin May 17, 2021. Owners were also contacted by telephone. To date, all repairs have been done. No further owner notification letters will be sent. Owners may contact BMW customer service at 1-800-525-7417.
Summary: BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, 745Le, 745Le xDrive, X5 xDrive45e, X3 xDrive30e, X6 sDrive40i, X6 xDrive40i, X6 x...
Consequence: If the driver relies on only the rearview camera image, the missing or reduced rearview image view can increase the risk of a crash or injury.
Remedy: BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Summary: BMW of North America, LLC (BMW) is recalling certain 2020-2021 X3 sDrive 30i, X3 xDrive 30i, X3M 40i, X3 xDrive 30e, X4 xDrive 30i, X4M 40i, 530i, 540i, 540i xDrive, M550i xDrive, M5, 550e, 550e xDrive, and 550e iPerformance vehicles. A small portion of the rearview image may be slightly obscured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: If the driver relies on only the rearview camera image, the reduced rearview image view can increase the risk of a crash or injury.
Remedy: BMW will notify owners, and dealers will inspect and, if necessary, program the rearview camera with updated software. The recall began November 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.
NHTSA Complaint Summaries for the 2021 Bmw X4
Below are complaint narratives filed by owners of the 2021 Bmw X4 with the National Highway Traffic Safety Administration.
The contact owns a 2021 BMW X4. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System). While the vehicle was in park(P), there were abnormal sounds coming from the engine. The contact stated that when the vehicle was shifted into drive(D) and the brake pedal was depressed, there was an abnormal sound coming from the front of the vehicle. The vehicle was taken to...
Went to sit in driver rear seat and put on my seat belt and found it frayed apart. Thought this was od and tried the rear passenger side only to find the exact same thing. Took it to the dealer in Visalia, CA. They said that they have never seen anything like that before. After discovering that both belts were broken in the same spot, they concluded it must be caused by wear in the retracting mech...
BOTH rear seat belts have broken off in the same spot. Went to use the driver's side rear seat belt and found it had been broken (frayed off). Moved to the passenger side and found the exact same thing. This could have been a bad situation if in an accident had occurred where they had not completely frayed but would have failed. Took it to my local dealer and they had no answers as to how this co...
transfer case AWD/xDrive system drivetrain components The dealer diagnosed a transfer case failure on the BMW X4 xDrive. Vehicle displayed drivetrain malfunction warning. Repair estimate exceeds $20,000. The vehicle has under 50,000 miles. The issue appears consistent with known xDrive transfer case complaints. The warning light came on on January 7, 2026, at approximately 6 pm.
What component or system failed or malfunctioned, and is it available for inspection upon request? - Suspension How was your safety or the safety of others put at risk? - Its giving head ache and body pain, driver & passengers are jumping / shaking / feeling very uncomfortable Has the problem been reproduced or confirmed by a dealer or independent service center? - Dealer mentioned all good, it ...
Frequently Asked Questions About the 2021 Bmw X4
Has the 2021 BMW X4 been recalled?
Yes, the 2021 BMW X4 has 7 recalls on record with NHTSA. Each recall addresses a specific safety defect identified by the manufacturer or NHTSA.
How many complaints does the 2021 BMW X4 have?
The 2021 BMW X4 has 5 complaints filed with NHTSA. None of the complaints involved crashes. No injuries or deaths have been reported.
What is the safety rating for the 2021 BMW X4?
The 2021 BMW X4 does not have an NHTSA safety rating on file. This can happen for newer model years, specialty vehicles, or models that have not been crash-tested.
What are the most common problems with the 2021 BMW X4?
The most commonly reported problems with the 2021 BMW X4 involve seat belts (2 complaints), engine (1 complaints), unknown or other (1 complaints). Other affected components include suspension.
How many crash reports does the 2021 BMW X4 have?
There are no crash reports associated with the 2021 BMW X4 in the NHTSA database.
How many fire reports does the 2021 BMW X4 have?
There are no fire reports for the 2021 BMW X4 in the NHTSA database.
Are there any deaths reported for the 2021 BMW X4?
No deaths have been reported in NHTSA complaints for the 2021 BMW X4.
How many injuries are reported for the 2021 BMW X4?
No injuries have been reported in NHTSA complaints for the 2021 BMW X4.
Should I buy a 2021 BMW X4?
Based on NHTSA data, the 2021 BMW X4 is research thoroughly before purchasing. It has 5 complaints, 7 recalls. Always have a pre-purchase inspection done by a qualified mechanic.
What components fail most on the 2021 BMW X4?
The components with the most failures on the 2021 BMW X4 are: 1. SEAT BELTS (2 complaints), 2. ENGINE (1 complaints), 3. UNKNOWN OR OTHER (1 complaints), 4. SUSPENSION (1 complaints). SEAT BELTS is the single most-reported problem area with 2 complaints.
What should I know before buying a 2021 BMW X4?
Be aware of potential seat belt and drivetrain issues. Check for recalls and inspect your vehicle regularly. The 2021 BMW X4 has 5 NHTSA complaints and 7 recalls on record.
How reliable is the 2021 BMW X4?
The 2021 BMW X4 receives a reliability score of 87/100, indicating above-average reliability. This is based on 5 owner complaints, 7 recalls, and 0 crash/fire reports in the NHTSA database. Key known issues include Seat Belt Failure and Transfer Case Failure.
What are the known issues with the 2021 BMW X4?
Known issues with the 2021 BMW X4 include: Seat Belt Failure, Transfer Case Failure. These are based on patterns found across 5 NHTSA complaints. 7 of these patterns resulted in formal recalls.
What component or system failed or malfunctioned, and is it available for inspection upon request?
The transfer case failed, and it is available for inspection upon request.
How was your safety or the safety of others affected by the seat belt failure?
The seat belt failure could compromise occupant safety in the event of a collision.
What should I do if I suspect a seat belt or drivetrain issue in my 2021 BMW X4?
Contact your local BMW dealer for inspection and possible recall information.
Buyer Advice
Our recommendation: Be aware of potential seat belt and drivetrain issues. Check for recalls and inspect your vehicle regularly.
NHTSA Data Summary for 2021 Bmw X4
This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2021 Bmw X4. The data includes 5 consumer complaints filed by vehicle owners, 7 manufacturer-initiated safety recalls, and safety rating assessments associated with this vehicle.
All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.
Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.
Disclaimer: This analysis is AI-generated from NHTSA public data and does not constitute professional automotive or safety advice. Always verify recall status at NHTSA.gov and consult a qualified mechanic.
Analysis last updated: 2026-05-13