Built from official NHTSA complaint and recall data · data through 07/12/2026
High complaint levelIts most-reported problem — Steering — runs 8.5× the fleet median for that category across the 1655 model-years tracked on this site.
315Complaints
2Recalls
9Crashes
0Fires
3Injured
0Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Steering (52.7% of complaints) — is covered by 1 NHTSA recall campaign.
Steering complaints here are 8.5× the median for that category across the 1655 model-years tracked on this site.
Complaint category
Reports
Official status
Reference
Steering
166 · 52.7%
Recalled
Recall 14V284000
Engine
53 · 16.8%
not available
—
Vehicle Speed Control
41 · 13%
not available
—
Power Train
41 · 13%
not available
—
Electrical System
21 · 6.7%
not available
—
Fuel/propulsion System
15 · 4.8%
not available
—
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 315 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehicle, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“STARTED THE CAR LIKE NORMAL WENT TO LEAVE FROM MY PARKING SPACE WHEN STEERING WHEEL WOULD NOT TURN FREELY. DROVE THAT WAY TO WORK (THOUGHT…”NHTSA complaint 10567727 — filed 03/06/2014 · STEERING
“POWER STEERING STOPS WORKING WHILE DRIVING. IF YOU STOP SHUT OFF CAR THEN RESTART POWER STEERING WILL WORK FOR AWHILE. FORD HAS NO RECALL ON…”NHTSA complaint 10566865 — filed 03/03/2014 · STEERING
“WHILE WAITING AT A STOP SIGN TO MAKE A RIGHT TURN, MY STEER WHEEL JERKED IN MY HAND AND SEEM TO LOCK. WHEN THE TRAFFIC…”NHTSA complaint 10565425 — filed 02/22/2014 · STEERING
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2009 Mercury Mariner?
Steering issues are the most-reported category, cited in 166 of 315 NHTSA complaints (52.7%), followed by engine (53), vehicle speed control (41), power train (41). Complaints are unverified owner reports.
How many complaints does the 2009 Mercury Mariner have?
315 complaints were on file with NHTSA as of 07/12/2026. Of those, 9 involved a crash, 0 involved a fire, and 3 reported injuries. No deaths were reported.
Does the 2009 Mercury Mariner have any recalls?
Yes — 2 NHTSA safety recall campaigns, including campaign 15E045000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2009 Mercury Mariner's reported problems?
Recall or investigation data is partly unavailable for this vehicle right now — check your VIN at nhtsa.gov/recalls for the authoritative answer.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.
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