Research · Sport Utility Vehicle - 2WD
2011 Mercury Mariner HybridRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 84 owner complaints for the 2011 Mercury Mariner Hybrid. Most complaints involve power train (24) and fuel/propulsion system (22). The EPA rates it 29–32 mpg combined, and NHTSA gives it 3 stars overall.
Combined MPG
29–32mpg
EPA · 2 versions
NHTSA overall
3of 5 stars
NCAP crash tests
Safety recalls
0campaigns
NHTSA
Owner complaints
84
Top: power train
Fuel cost / yr
$1,950est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2011 Mercury Mariner Hybrid as of Nov 10, 2026.
Data from NHTSA Recalls API · synced Nov 10, 2026NHTSA vehicle page
Owner complaints by component
84 complaints filed with NHTSA · Dec 2010 – Jan 2025
- Power train24
- Fuel/propulsion system22
- Steering19
- Vehicle speed control15
- Engine11
- Fuel system, gasoline6
- Electrical system6
- Visibility/wiper3
- Visibility3
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026 · Full problem breakdownNHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Power train
24 reports
“THE THROTTLE IS NOT WORKING RIGHT. I WAS ALMOST IN 2 ACCIDENTS BECAUSE OF THIS. I STEP ON THE GAS AND NOTHING HAPPENS. I HEAR THAT 1000S ARE HAVING THE SAME PROBLEM BUT NO RECALL. THIS IS VERY DANGEROUS WHEN IN A 75 MPH ZONE AND SUDDENLY NO POWER. *TR”
Fuel/propulsion system
22 reports
“TL* THE CONTACT OWNS A 2011 MERCURY MARINER. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V777000 (FUEL SYSTEM, GASOLINE); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. LOUDON MOTORS FORD (3476 UNION AVE SE, MINERVA, OH 44657, (330) 868-2277) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.”
Steering
19 reports
“The contact owns a 2011 Mercury Mariner. The contact stated that while attempting to make a turn from a complete stop, the steering wheel became significantly difficult to turn. The contact was able to turn the vehicle by using physical force. The contact stated that the failure persisted. The vehicle was taken to an unknown dealer, where it was diagnosed with electric power steering system torque sensor failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 141,968.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Engines, transmissions & drive
2 versions rated by the EPA
- EPA class
- Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD
- Engines
- 2.5L 4-cyl hybrid
- Transmissions
- Automatic (variable gear ratios)
- Drive
- Front-Wheel Drive · 4-Wheel Drive
- Fuel
- Regular Gasoline
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
Data from EPA fueleconomy.gov · synced Nov 10, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Mariner Hybrid FWD Auto (variable gear ratios), 4 cyl, 2.5 L · Front-Wheel Drive | 34 | 30 | 32 | $1,950 | 278 |
| Mariner Hybrid 4WD Auto (variable gear ratios), 4 cyl, 2.5 L · 4-Wheel Drive | 30 | 27 | 29 | $2,150 | 306 |
- 32mpg comb.
- 29mpg comb.
Data from EPA fueleconomy.gov · synced Nov 10, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
2 tested variants
Overall rating
3/ 5
3 of 5Mercury Mariner HEV 4DR SUV 4x4
- Frontal crash
- 3 of 5
- Side crash
- 3 of 5
- Side pole
- 4 of 5
- Rollover
- 3 of 5
- Rollover risk
- 20.4%
Overall
3 / 5
Mercury Mariner HEV 4DR SUV 4x2
- Frontal crash
- 3 of 5
- Side crash
- 3 of 5
- Side pole
- 4 of 5
- Rollover
- 3 of 5
- Rollover risk
- 23.7%
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2011 Mariner Hybrid questions
How many recalls does the 2011 Mercury Mariner Hybrid have?
0 recalls found in NHTSA data as of Nov 10, 2026.
What are the most common 2011 Mercury Mariner Hybrid problems?
Owners filed 84 complaints with NHTSA. The most-cited components are power train (24), fuel/propulsion system (22), steering (19). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2011 Mercury Mariner Hybrid get?
The EPA rates the 2011 Mercury Mariner Hybrid at 29–32 mpg combined, depending on engine and drivetrain (2 versions rated).
How safe is the 2011 Mercury Mariner Hybrid?
NHTSA's New Car Assessment Program gives the 2011 Mercury Mariner Hybrid 3 out of 5 stars overall.
Data from NHTSA & EPA · synced Nov 10, 2026