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Mercury MountaineerModel year report

2009 Mercury Mountaineer Problems

Complaints
6filed with NHTSA
Median mileage
47,000miles, 5 complaints with mileage
Recalls
0campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
17 mpgcombined, 4.6L 8-cyl RWD · 15 city / 21 hwy

Sources: NHTSA records for the 2009 Mercury Mountaineer (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 6 consumer complaints for the 2009 Mercury Mountaineer. The part named most often is seats, with 2 complaints (33% of the total), followed by steering (2) and brakes (1). 5 of the complaints include a mileage, and 60% of those were filed for vehicles with under 50,000 miles; the median is 47,000 miles. NHTSA lists 0 recall campaigns and 17 technical service bulletins for this model year. Steering complaints overlap with 1 technical service bulletin 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

Seats: “Have a 2009 Mercury Mountaineer with 71,000 miles. In the past 10 days, have had four incidents where, while driving, the driver's side power front seat has suddenly reverted to the easy exit position. We bought this car used with 22,000 miles. Have had the car for four years. My wife and I are tall; however, even at that, while driving at speeds between 55-70 (on turnpikes and major highways), this is still an issue. …”

NHTSA complaint #10592417, filed 2014-05, 71,000 miles

Steering: “The contact owns a 2009 Mercury Mountaineer. The contact stated while making a left or right turn, she heard an abnormal noise, and the steering wheel became difficult to turn. The contact stated that the Roll Stability Control (RSC) warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the Roll Stability Control (RSC) to be replaced. The vehicle was repaired but continued to experience the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 118,000.”

NHTSA complaint #11493929, filed 2022-11, 118,000 miles

Mileage when problems were reported

60% of the 5 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 45,000 and 71,000 miles.

0%0–1020%10–2540%25–5020%50–750%75–10020%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (5 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 47,000 miles.

Complaints by year filed

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

201012013120141201512018120221
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.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2009 Mercury Mountaineer. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
Mountaineer · sedan RWD/AWDnot rated5 / 5——3 · 22.8% risk

Ratings before the 2011 model year come from an older, less demanding test and are not comparable with ratings for 2011 and later.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2009 Mercury Mountaineer 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
Mountaineer 2WD4.0L 6-cyl5-speed automatic142016$4,200
Mountaineer 2WD4.6L 8-cyl6-speed automatic152117$3,950
Mountaineer 4WD4.0L 6-cyl5-speed automatic131915$4,450
Mountaineer 4WD4.6L 8-cyl6-speed automatic141916$4,200

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

NHTSA lists no recall campaigns for the 2009 Mercury Mountaineer in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by 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. 17 on record; the latest 10 are shown.

See all 17 bulletins →

Other model years of the Mercury Mountaineer

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20101338,6601—17—Not enough data
2009647,0000—17—Not enough data
20089665,8001—16Not compared (fewer than 3 comparable model years)Falling
20078175,0000—16Not compared (before 2008)Rising
200611758,8491—16Not compared (before 2008)Falling
20058256,7500—15Not compared (before 2008)Rising
200421068,0000—16Not compared (before 2008)Falling
200315278,7840—16Not compared (before 2008)Falling
200237275,0002—16Not compared (before 2008)Falling
20012275,0003—17—Stable
200012370,0006—16Not compared (before 2008)Rising
199915170,0007—16Not compared (before 2008)Stable
199823685,0005—16Not compared (before 2008)Stable
1997328124,0006—14Not compared (before 2008)Falling

All Mercury Mountaineer model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2009 Mercury Mountaineer have?

NHTSA recorded 6 consumer complaints for the 2009 Mercury Mountaineer as of Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2009 Mercury Mountaineer is reported most often?

Seats is named most often, in 2 complaints (33% of the total), followed by steering with 2.

Has the 2009 Mercury Mountaineer been recalled?

NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2009 Mercury Mountaineer get?

The EPA rates the 2009 Mercury Mountaineer (Mountaineer 2WD, 4.6L 8-cyl) at 17 mpg combined, 15 city and 21 highway, with an estimated annual fuel cost of $3,950 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2009 Mercury Mountaineer reported?

Among the 5 complaints that include a mileage, the median is 47,000 miles and the middle half falls between 45,000 and 71,000 miles; 60% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. 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.