2009 Mercury Mariner
This year had more than double the complaints of this model's typical year.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2001 | 0 |
| 2002 | 0 |
| 2003 | 0 |
| 2004 | 0 |
| 2005 | 67 |
| 2006 | 63 |
| 2007 | 33 |
| 2008 | 461 |
| 2009 | 315 |
| 2010 | 269 |
| 2011 | 87 |
KNOWN PROBLEM AREAS
53% of complaints: steering — 166 distinct reports on file.
CRASH INJURYShow complaint excerpts
This is an update to the complaint from June- Because I have to compensate manually for the electric power steering, Iâve aggravated upper back injuries and strained hip muscles I incurred from work.
NHTSA ODI report, 20241119
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. WHILE DRIVING 5 MPH, THE STEERING SEIZED WHILE MAKING A LEFT TURN. THERE WERE NO WARNING INDICATORS ILLUMINATED. AS A RESULT, ANOTHER VEHICLE STRUCK THE REAR DRIVER'S SIDE OF THE CONTACT'S VEHICLE.
NHTSA ODI report, 20181025
LOSS OF POWER STEERING WHILE DRIVING ERROR CODE "POWER STEERING ASSIST ERROR"
NHTSA ODI report, 20181022
17% of complaints: engine — 53 distinct reports on file.
13% of complaints: vehicle speed control — 41 distinct reports on file.
CRASHShow complaint excerpts
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT WAS ENTERING A PARKING SPACE WHEN THE VEHICLE EXHIBITED AN ABNORMALLY LOUD REVVING SOUND AND ACCELERATED INTO A FENCE WITHOUT WARNING. THERE WERE NO INJURIES NOR WAS A POLICE REPORT FILED.
NHTSA ODI report, 20120109
13% of complaints: power train — 41 distinct reports on file.
7% of complaints: electrical system — 21 distinct reports on file.
INJURYShow complaint excerpts
This is an update to the complaint from June- Because I have to compensate manually for the electric power steering, Iâve aggravated upper back injuries and strained hip muscles I incurred from work.
NHTSA ODI report, 20241119
SAFETY TIMELINE
Electronic Throttle Body Malfunction
Ford Motor Company (Ford) is recalling certain model year 2008-2011 Ford Escape and Mercury Mariner vehicles manufactured August 18, 2006, through September 11, 2010.
Remedy: Ford will notify owners, and dealers will update the software for the power steering control module (PSCM) and the instrument cluster module, free of charge.
Campaign 14V284000 — check if this car was fixed
Loss of power steering while driving
The Timken Company (Timken) is recalling certain aftermarket front wheel bearings, part number 510072, sold from January 22, 2015, to May 21, 2015, to be used as service parts on 2001-2012 Ford Escape, 2001-2011 Mazda Tribute, and 2005-2011 Mercury...
Remedy: Timken has begun notifying distributors who will offer purchasers replacement wheel bearings, free of charge. The recall began on May 21, 2015. Owners may contact Timken customer service at 1-866-984-6536.
Campaign 15E045000 — check if this car was fixed
BUY-SMART CHECKLIST
2009 Mercury Mariner — pre-purchase inspection
- Test/inspect for steering issues (166 reports on file for this year).
- Test/inspect for engine issues (53 reports on file for this year).
- Test/inspect for vehicle speed control issues (41 reports on file for this year).
- Verify recall 14V284000 (steering) has been completed.
- Verify recall 15E045000 (suspension) has been completed.
OTHER YEARS OF THIS MODEL
BEST YEARS
WORST YEARS
FAQ
Is the 2009 Mercury Mariner reliable?
Based on NHTSA complaint volume compared to this model's typical year, the 2009 Mercury Mariner is rated "significantly worse".
What are the most common problems with the 2009 Mercury Mariner?
The most-reported component is steering, accounting for 53% of complaints on file.
How many recalls does the 2009 Mercury Mariner have?
2 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.