Head-to-head reliability
Mercury Mariner vs FORD F 150
How the Mercury Mariner and FORD F 150 compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
Mercury Mariner vs FORD F 150: The Mariner averaged 186 complaints per year over 7 years, while the F-150 averaged 1,162 over 10 years. The Mariner's top issue is steering (559 complaints), and the F-150's is power train (3,648). Both have recalls, but the F-150 has more (151 vs. 22). Source: NHTSA owner complaints.
The picture
Is the Mercury Mariner or FORD F 150 more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
Mercury Mariner
The Mercury Mariner is a compact SUV that, based on owner complaints, can be a headache to own. Over seven years, it averaged about 186 complaints per year, with steering problems dominating the list. Many owners report sudden difficulty steering, transmission failures, and unexpected power loss, which can be frightening and expensive. It's a vehicle that demands careful inspection before purchase.
FORD F 150
The Ford F-150 is a full-size pickup with a much higher complaint volume—about 1,162 per year over ten years—but it's also far more common on the road. Owners frequently report transmission issues, electrical glitches, and lighting problems. Some complaints describe dangerous situations like limp mode or windows shattering. While recalls are numerous, many are for serious safety defects.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | Mercury Mariner | FORD F 150 |
|---|---|---|
| Total complaintsAll model years combined | 1,305 Better | 11,621 |
| Safety recallsFederal recall campaigns | 22 Better | 151 |
| Crash reportsCrash-related complaints | 36 Better | 330 |
| Complaints per yearAveraged across model years | 186.4 Better | 1162.1 |
| Reported injuriesTied to owner complaints | 37 Better | 297 |
| Reported deathsTied to owner complaints | 0 Better | 1 |
Source: NHTSA owner complaints & recall records.
What actually goes wrong
The problems owners report
The most-complained-about systems on each vehicle — what fails, and what owners say in their own words.
Mercury Mariner
- 01STEERING559
- 02POWER TRAIN233
- 03VEHICLE SPEED CONTROL182
- 04ENGINE164
- 05FUEL/PROPULSION SYSTEM109
Owners report the steering wheel becoming difficult to maneuver, often linked to steering column or pump failures. This can make the vehicle hard to control, especially at higher speeds.
Transmission problems are common, with reports of gears not shifting, loud noises, and shaking. Some owners experienced complete transmission failure around 42,000 miles, leading to costly repairs.
Complaints include gas pedal failures, overdrive light blinking, and sudden power loss. These issues can leave drivers stranded or cause dangerous situations on the highway.
Some owners report hybrid system overheating with a 'Stop Safely Now' warning, causing immediate power loss. Others mention engine-related transmission issues, indicating potential widespread powertrain concerns.
“TL* THE CONTACT OWNS A 2007 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS. THE TECHNICIAN STATED THAT THE STEERING COLUMN AND THE…”
FORD F 150
- 01POWER TRAIN3,648
- 02ELECTRICAL SYSTEM2,100
- 03UNKNOWN OR OTHER1,431
- 04EXTERIOR LIGHTING1,224
- 05ENGINE880
Transmission problems are rampant, including limp mode, stuck gears, and lead frame failures. Owners describe recurring issues that can lead to near-collisions and expensive fixes.
Electrical gremlins include lead frame issues affecting transmission and rear window defroster shorts that can cause the back window to shatter. These faults can be unpredictable and costly.
Complaints range from rear window explosions to various unexplained failures. These unpredictable issues add to ownership frustration and safety concerns.
Lighting problems are frequently reported, though specific details are not provided in the sample. Faulty lights can reduce visibility and increase accident risk.
“This lead frame issue is never ending. Well over a decade without a proper remedy. I’m very familiar with it. but this one nearly ended my life. After the near collision I called my mechanic and bought a new ford lead frame from a dealership. It’s doing fine…”
“My 2017 Ford F-150 V8 with the 6-speed automatic transmission has been experiencing a serious and recurring transmission malfunction. The truck has consistently, almost on a daily basis, gone into limp mode and become stuck in 5th gear. It also frequently fai…”
Official recalls
Safety recalls on record
Federal recall campaigns — the defect, the risk, and the fix. Confirm any open recall was completed before you buy.
Mercury Mariner — 22 recalls
The defect: 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 Mariner vehicles. The affected wheel bearings have…
The risk: Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehicle, increasing the risk of a crash.
The fix: 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.
The defect: Ford Motor Company (Ford) is recalling certain model year 2005-2008 Ford Escape hybrid electric vehicles manufactured October 13, 2003, to June 20, 2008, and 2006-2008 Mercury Mariner hybrid electric vehicles manufactured June 10, 2005, to June 20, 2008. The coolant pump for the hybrid system may f…
The risk: If the hybrid electronics system overheats, it may shut down the powertrain, resulting in a stall-like condition, increasing the risk of a crash.
The fix: Ford will notify owners, and dealers will inspect and replace the original Motor Electronics Coolant (MEC) Pump with an improved brushless pump, free of charge. The recall is expected to begin on October 27, 2014. Owners may contact Ford c…
The defect: Ford Motor Company (Ford) is recalling certain model year 2001-2008 Ford Escape and Mercury Mariner vehicles manufactured March 31, 2001, to September 1, 2009. The affected vehicles are equipped with either a 2.3L or 3.0L engine and have had their CD4E transmission replaced with remanufactured one…
The risk: If the shift lever disengages from the transmission, a driver may be unable to shift gear positions and the indicated shift position may not represent the gear position the vehicle is in. Should a disengagement occur while the vehicle is b…
The fix: Ford will notify owners, and dealers will inspect the transmissions and either tighten the manual shift lever bolt or replace the manual shift lever assembly. These repairs will be performed free of charge. The recall began on October 23,…
The defect: 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 Mariner vehicles. The affected wheel bearings have…
The risk: Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehicle, increasing the risk of a crash.
The fix: 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.
FORD F 150 — 151 recalls
The defect: Ford Motor Company (Ford) is recalling certain 2015-2019 Ford F-150 and 2017-2019 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, and F-550 Super Duty pick-up trucks equipped with an engine block heater. Water and contaminants may get into the block heater cable's splice connector causin…
The risk: When the heater is plugged in, prolonged corrosion could cause a resistive short, increasing the risk of overheated or melted wiring which can increase the risk of a fire.
The fix: Ford will notify owners, and dealers will disable the block heater cable, free of charge. Once parts are available, Dealers will replace the engine block heater cable, free of charge. The recall began June 3, 2019. Owners may contact Ford…
The defect: Ford Motor Company (Ford) is recalling certain 2015-2019 Ford F-150 and 2017-2019 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, and F-550 Super Duty pick-up trucks equipped with an engine block heater and previously remedied under recall 18V894. During the previous repair, the block he…
The risk: A damaged cable could cause a resistive short, increasing the risk of overheated or melted wiring, increasing the risk of a fire.
The fix: Ford will notify owners, and dealers will disable the engine block heater from being used. When replacement cables become available, a second notice will be mailed and dealers will replace the engine block heater cord, free of charge. The…
The defect: Ford Motor Company (Ford) is recalling certain 2015-2018 Ford F-150 Regular Cab and SuperCrew Cab vehicles. If a front seat belt pretensioner deploys as the result of a crash, the sparks may ignite materials such as carpeting or insulation within the B-pillar area.
The risk: A vehicle fire could result if materials ignite inside the vehicle.
The fix: Ford will notify owners, and dealers will remove the B-pillar insulation material and wiring harness tape, and install heat resistant tape, free of charge. The recall began September 28, 2018. Owners may contact Ford customer service at 1-…
The defect: Ford Motor Company (Ford) is recalling certain 2015-2017 Ford F-150, and 2017 F-250, F-350, F-450, and F-550 Super Duty trucks. The doors on these vehicles may have a bent or kinked actuation cable or the door latches may freeze after water gets into the latch. Either condition can result in the do…
The risk: A door that opens while driving can increase the risk of injury.
The fix: Ford will notify owners, and dealers will inspect the door latch actuation cables and repair if necessary, and install water shields over the door latches, free of charge. The recall began October 12, 2018. Owners may contact Ford customer…
Buyer analysis
Mercury Mariner or FORD F 150: which should you buy?
The Mercury Mariner has far fewer complaints per year (about 186 vs. 1,162 for the F-150), but its issues are concentrated in critical areas like steering and transmission. The F-150's higher volume means more overall problems, but many are addressed through recalls. In practice, the Mariner may have fewer total issues, but the F-150's issues are more widely documented and sometimes remedied.
Key differences
- The Mariner's top complaint is steering (559 complaints), while the F-150's is power train (3,648 complaints).
- The F-150 has 151 recalls over 10 years, compared to 22 for the Mariner over 7 years, indicating more safety-related actions.
- Mariner owners report sudden power loss and transmission failure; F-150 owners report limp mode and lead frame issues.
- The F-150 has 330 crash-related complaints and 297 injuries, while the Mariner has 36 crashes and 37 injuries, though these numbers are not adjusted for vehicle population.
- During a test drive, check for any difficulty or noise when turning the steering wheel, as steering column failures are common.
- Ask for transmission service records and test for smooth shifting; transmission failure around 42,000 miles is reported.
- Test the transmission for limp mode or rough shifting, especially in 2017 models with the 6-speed automatic.
- Inspect the rear window defroster and look for any signs of electrical shorts that could cause the window to shatter.
Before you buy
- Obtain a full vehicle history report and check for open recalls on both models.
- Have a mechanic inspect the steering system and transmission on the Mariner, and the transmission and electrical system on the F-150.
- Test drive at highway speeds to check for power loss or limp mode.
- Verify that any recall repairs have been completed, especially for the F-150's lead frame and transmission software.
- Consider a pre-purchase inspection by a dealership familiar with these models to catch model-specific issues.
Check the actual car
Comparing models is smart. Checking the VIN is essential.
Brand averages tell you the trend. A VIN check tells you what's wrong with the specific Mercury Mariner or FORD F 150 in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- Mercury Mariner vs FORD F 150
- Mercury Mariner total complaints
- 1,305
- FORD F 150 total complaints
- 11,621
- Mercury Mariner total recalls
- 22
- FORD F 150 total recalls
- 151
- Mercury Mariner avg complaints/year
- 186.4
- FORD F 150 avg complaints/year
- 1162.1
- More reliable overall
- Mercury Mariner
- Mercury Mariner top complaint area
- STEERING
- FORD F 150 top complaint area
- POWER TRAIN