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2021 BMW X6 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
7
Latest Jan 26, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
6
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2021 BMW X6, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Brakes222.2%
  • Driver assistance222.2%
  • Electrical222.2%
  • Airbags111.1%
  • Engine111.1%
  • Steering111.1%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

2
reports

From owner reports, verbatim

The contact owns a 2021 BMW X6. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact shifted into park while the vehicle was in motion to stop the vehicle. The vehicle was taken to an independent mechanic; however, the failure was not duplicated. In addition, the contact stated that while attempting to start the vehicle, the vehicle failed to start. The vehicle started after several attempts. No warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed with starter motor failure. The contact was informed that the starter motor needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 49,000.

NHTSA ID 11713418 · filed Jan 26, 2026

Unknown

NHTSA ID 11694233 · filed Oct 18, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

2
reports

From owner reports, verbatim

The automatic parking feature was being used to park in garage the vehicle proceed to back up without stopping and the emergency braking system didn’t engage leading to the vehicle crashing. I could have been injured if the structure of the house didn’t stop the vehicle. If someone had been behind the vehicle they would’ve been killed. The incident was reported to BMW, although the system malfunctioned the driver is responsible for maintaining control of the vehicle.The vehicle is has been repaired but system is still malfunctioning. These problems didn’t exist prior to crash.

NHTSA ID 11589248 · filed May 17, 2024

IF I HAVE MADE THE PURCHASE DEPOSITING 100000 AND THE REST IN MONTHLY PAYMENTS

NHTSA ID 11384275 · filed Dec 20, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

2
reports

From owner reports, verbatim

The contact owns a 2021 BMW X6. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact shifted into park while the vehicle was in motion to stop the vehicle. The vehicle was taken to an independent mechanic; however, the failure was not duplicated. In addition, the contact stated that while attempting to start the vehicle, the vehicle failed to start. The vehicle started after several attempts. No warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed with starter motor failure. The contact was informed that the starter motor needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 49,000.

NHTSA ID 11713418 · filed Jan 26, 2026

The contact owns a 2021 BMW X6. The contact stated that upon start the vehicle, the drivetrain message was displayed. Overtime, the contact stated that the vehicle either failed to start or was slow to start while depressing the START/STOP button. The vehicle was taken to a dealer and the starter was replaced; however, a month later, the drivetrain message returned. Additionally, the contact stated that while reversing out of a parking space, the vehicle shut off while in reverse(R). The vehicle was taken back to the dealer and the contact was informed that the crank sensor needed to be replaced. The dealer stated that the part needed to be ordered, and the contact was instructed to return in a few days for the repair. After leaving the appointment, the contact stated that the vehicle failed to start up while in a parking lot and the vehicle was towed back to the dealer. Another diagnostic test was performed, and the contact was informed that the alternator, starter, and battery all needed to be replaced. The vehicle was not repaired and remained with the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 53,000.

NHTSA ID 11698929 · filed Nov 12, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

Wiring from knee air bag to module failed. Had to repair wiring from front driver and passenger knee air bags. Wiring had a short to ground. Resulted in a $1600 bill.

NHTSA ID 11701406 · filed Nov 25, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

1
report

From owner reports, verbatim

The contact owns a 2021 BMW X6. The contact stated that upon start the vehicle, the drivetrain message was displayed. Overtime, the contact stated that the vehicle either failed to start or was slow to start while depressing the START/STOP button. The vehicle was taken to a dealer and the starter was replaced; however, a month later, the drivetrain message returned. Additionally, the contact stated that while reversing out of a parking space, the vehicle shut off while in reverse(R). The vehicle was taken back to the dealer and the contact was informed that the crank sensor needed to be replaced. The dealer stated that the part needed to be ordered, and the contact was instructed to return in a few days for the repair. After leaving the appointment, the contact stated that the vehicle failed to start up while in a parking lot and the vehicle was towed back to the dealer. Another diagnostic test was performed, and the contact was informed that the alternator, starter, and battery all needed to be replaced. The vehicle was not repaired and remained with the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 53,000.

NHTSA ID 11698929 · filed Nov 12, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

1
report

From owner reports, verbatim

Unknown

NHTSA ID 11694233 · filed Oct 18, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .