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BMW X6Model year report

2021 BMW X6 Problems

Complaints
7filed with NHTSA
Median mileage
51,000miles, 2 complaints with mileage
Recalls
7campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
15 mpgcombined, 4.4L 8-cyl AWD · 13 city / 18 hwy

Sources: NHTSA records for the 2021 BMW X6 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 7 consumer complaints for the 2021 BMW X6. The part named most often is brakes, with 2 complaints (29% of the total), followed by electrical system (2) and forward collision avoidance (2). 2 of the complaints include a mileage, and 50% of those were filed for vehicles with under 50,000 miles; the median is 51,000 miles. Of all complaints, 1 involved a crash, according to the filers. NHTSA lists 7 recall campaigns and 244 technical service bulletins for this model year. Brakes complaints overlap with 1 recall campaign covering the hydraulic and 7 technical service bulletins filed under the same part. Electrical system complaints overlap with 1 recall campaign and 72 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Brakes: “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. …”

NHTSA complaint #11713418, filed 2026-01, 49,000 miles

Electrical system: “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). …”

NHTSA complaint #11698929, filed 2025-11, 53,000 miles

Forward collision avoidance: “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 complaint #11589248, filed 2024-05

Air bags: “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 complaint #11701406, filed 2025-11

Mileage when problems were reported

50% of the 2 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 49,000 and 53,000 miles.

0%0–100%10–2550%25–5050%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (2 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 51,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

202020232024202532026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2021 BMW X6 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
X6 M AWD4.4L 8-cyl8-speed automatic131815$5,500
X6 M Competition AWD4.4L 8-cyl8-speed automatic131815$5,500
X6 M50i AWD4.4L 8-cyl8-speed automatic162218$4,550
X6 sDrive40i RWD3.0L 6-cyl · hybrid8-speed automatic212623$3,550
X6 xDrive40i AWD3.0L 6-cyl · hybrid8-speed automatic212523$3,550

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

See all 7 recalls for the 2021 BMW X6 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 244 on record; the latest 10 are shown.

See all 244 bulletins →

Other model years of the BMW X6

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20249—5—19—Too new
2022555,0001—15—Not enough data
2021751,0007—15—Not enough data
2020963,84310—23—Not enough data
2019599,9124—20—Not enough data
2016948,0001—21—Not enough data
2015951,5001—22—Not enough data
201411100,0003—17—Not enough data
20132555,0005—1632 · FewerStable
20123272,4507—1650 · TypicalFalling
20113160,00011—1658 · TypicalFalling
20101579,9669—15—Stable
20091958,24410—17—Falling

All BMW X6 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2021 BMW X6 have?

NHTSA recorded 7 consumer complaints for the 2021 BMW X6 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2021 BMW X6 is reported most often?

Brakes is named most often, in 2 complaints (29% of the total), followed by electrical system with 2.

Has the 2021 BMW X6 been recalled?

NHTSA lists 7 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2021 BMW X6 get?

The EPA rates the 2021 BMW X6 (X6 M, 4.4L 8-cyl) at 15 mpg combined, 13 city and 18 highway, with an estimated annual fuel cost of $5,500 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2021 BMW X6 reported?

Among the 2 complaints that include a mileage, the median is 51,000 miles and the middle half falls between 49,000 and 53,000 miles; 50% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.