Model year
2009 Mercury Mariner
NHTSA lists 1 recall and 315 complaints for the 2009 Mercury Mariner (recall file dated Oct 23, 2026; complaint file dated Oct 23, 2026). NHTSA also lists 0 recalls and 21 complaints under MARINER HYBRID. Those counts are separate from the numbers above. The components listed on the most complaints are STEERING (166), ENGINE (53), POWER TRAIN (41). NHTSA lists 2 investigations. NHTSA star ratings from before model year 2011 use an older method and are not shown here. EPA rates it 20–32 mpg combined depending on configuration (fuel economy file dated Sep 29, 2026). EPA's annual fuel-cost figures for these configurations are $2,100–$3,350, based on 15,000 miles and 55% city driving.
- 2005 67 complaints
- 2006 63 complaints
- 2007 33 complaints
- 2008 461 complaints
- 2009 315 complaints
- 2010 270 complaints
- 2011 87 complaints
Recalls
14V284000 · May 29, 2014
STEERING:ELECTRIC POWER ASSIST SYSTEM
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. The affected vehicles have a steering torque sensor that may not be able to properly detect driver steering…
Complaints
315 distinct complaints. Crash flag on 9, fire flag on 0, injury field 3, deaths field 0. A complaint can be counted under more than one component. The injury and death figures are the file's numbers (the highest value on each complaint, then added), not a separate verified count of people.
Other NHTSA names
These names matched the same EPA model but are not included in the headline counts above.
| Name | Recalls | Complaints |
|---|---|---|
| MARINER HYBRID | 0 | 21 |
Investigations
| Action | Subject | Opened | Closed |
|---|---|---|---|
| PE13003 | Electronic Throttle Body Malfunction · ENGINE | Feb 21, 2013 | Feb 28, 2014 |
| DP15001 | Loss of power steering while driving · STEERING:ELECTRIC POWER ASSIST SYSTEM | Apr 1, 2015 | Jun 14, 2018 |
Safety ratings
NHTSA star ratings from before model year 2011 use an older method and are not shown here.
Fuel economy
| Configuration | Fuel | City | Hwy | Comb | kWh/100 mi | Range | Annual fuel cost |
|---|---|---|---|---|---|---|---|
| Mariner FWD · 2.5L · Automatic 6-spd · Front-Wheel Drive | Regular Gasoline | 20 | 28 | 23 | — | — | $2,900 |
| Mariner FWD · 3L · Automatic 6-spd · Front-Wheel Drive | Regular Gasoline | 18 | 26 | 21 | — | — | $3,200 |
| Mariner Hybrid FWD · 2.5L · Automatic (variable gear ratios) · Front-Wheel Drive | Regular Gasoline · Hybrid | 34 | 31 | 32 | — | — | $2,100 |
| Mariner 4WD · 2.5L · Automatic 6-spd · 4-Wheel or All-Wheel Drive | Regular Gasoline | 19 | 25 | 21 | — | — | $3,200 |
| Mariner 4WD · 3L · Automatic 6-spd · 4-Wheel or All-Wheel Drive | Regular Gasoline | 17 | 24 | 20 | — | — | $3,350 |
| Mariner Hybrid 4WD · 2.5L · Automatic (variable gear ratios) · 4-Wheel or All-Wheel Drive | Regular Gasoline · Hybrid | 29 | 27 | 28 | — | — | $2,400 |
Open this model year in the fuel-cost calculator. The calculator starts with no fuel price filled in.
Check a vehicle
This page is not a VIN lookup. NHTSA's recall tool checks a specific vehicle: nhtsa.gov/recalls. NHTSA's page for this model year is 2009 Mercury Mariner at NHTSA. Complaint narratives stay on NHTSA's site and are not copied here.