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2009 Mercury Mariner Hybrid problems

The most common problem on the 2009 Mercury Mariner Hybrid is steering, typically around 119,000 miles. It has fewer complaints than a typical Mariner Hybrid model year.

Typical yearClose to a typical year
Year score
76/100
Owner complaints
21
Recalls
0
Service bulletins
2
Worst area
Steering

The worst 2009 Mercury Mariner Hybrid problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Steering
    8
  • Acceleration
    6
  • Brakes
    4
  • Engine
    4
  • Electrical
    3

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Steering
    8
  • Acceleration
    6
  • Brakes
    4
  • Engine
    4
  • Electrical
    3
  • Fuel system
    3
  • Driver assistance
    1
  • Transmission
    1

Recalls

No recalls on record for this model year.

Defect investigations

Pedestrian alert soundsOpened January 27, 2023, closed August 7, 2023

the federal safety agency received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, the federal safety agency opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified the federal safety agency he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by the federal safety agency regarding the subject matter of the petition.

DP22005

Loss of power steering while drivingOpened April 1, 2015, closed June 14, 2018

On May 27, 2014, amended June 2, 2014, Ford Motor Company (Ford) submitted a Defect Information Report (DIR) to the federal safety agency describing a safety defect that may result in a sudden loss of power steering assist while driving in approximately 746,067 model year (MY) 2008 through 2011 Ford Escape vehicles equipped with electric power assisted steering (the federal safety agency 14V‑284, Ford 14S05). Ford's DIR described the defect condition as a poor signal to noise ratio [SNR] in the torque sensor within the Electric Power Assisted Steering (EPAS) system [which] does not allow the PSCM to determine the driver's steering input. When the system detects this fault condition, it transitions the EPAS system to the fail-safe/manual steering mode.Ford's DIR indicates that loss of power steering assist while driving would require higher steering effort at lower vehicle speeds, which may result in an increased risk of a crash.Ford's remedy instructs dealers to check the Power Steering Control Module (PSCM) for Diagnostic Trouble Codes (DTCs) to determine the proper repair procedure. If no DTCs are present, dealers are to update the PSCM and instrument cluster module software. The updated PSCM software changes the torque sensor fault strategy so that the SNR condition does not result in a loss of power steering assist while driving.In addition, audible and visual warnings are provided for torque sensor faults.If DTCs indicating faults in the torque sensor, PSCM or Power Steering Motor (motor) are present in the initial recall inspection, the dealer performs the following repairs: 1) replaces the torque sensor for torque sensor faults (DTC B2278); or 2) replaces the steering column for faults related to the PSCM (DTC B1342) or motor (DTC B2277).Continued in attachment pages

DP15001

Technical service bulletins for the 2009 Mercury Mariner Hybrid 2

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

What 2009 Mercury Mariner Hybrid owners say

Most recent owner complaints, unedited.

Filed May 21, 2019 · Steering · 160,000 miles · TN

Vehicle steering is intermittently going out and driver is unable to turn the vehicle. I have contactted ford and there is an existing recall (14s05) for this very item and my vehicle (year, make & model) is listed but they say my specific vehicle does not qualify.

Filed Mar 14, 2019 · Steering · 128,400 miles · CA · crash

Power steering went out, couldn't turn vehicle fast enough to avoid crash. Recall 14s05.

Filed Oct 25, 2018 · Steering · 96,000 miles · MD

Tl* the contact owns a 2009 mercury mariner hybrid. While driving approximately 25 MPH, the power steering failed without warning and the steering became difficult to turn. The vehicle was not taken to be diagnosed or repaired. The vehicle was not included in the federal safety agency campaign number: 14v284000 (steering). Neither the dealer nor the manufacturer was notified of the failure. The approximate failure mileage was 96,000.

Filed Oct 2, 2018 · Steering · 66,000 miles · MD

Electronic power steering module failure, replace entire module & column for $1698.89. Said previous recall was performed and ford bears no responsibility.

Filed Aug 30, 2017 · Acceleration, Engine · 128,000 miles · LA

I was on my way to drop my 3 month old off at daycare and then to work. I was driving down the highway going 60 MPH with the cruise control set when I feel the car start to jerk back and forth a little. I look at my gauges all are normal except the RPM gauge is jumping up and down then all of a sudden it is kick out of cruise control, and I lose acceleration and a wrench light came on. I was almost hit by 2 vehicles because of the sudden lose on speed. As I was losing acceleration, I was trying not to brake because I thought it was going to die. It did not die but I was not able to go any faster than 25 -30 MPH. I drove it straight to my mechanic and got the code p2112. This is for the throttle body. There was a recall issued on this for the mercury mariners but it did not include the hybrids. Please help

Filed Feb 21, 2017 · Steering · 119,000 miles · ND

Steering torque sensor is failing, resulting in loss of steering control. This vehicle was not included in the recall that ford already issued for the problem in 2014 but should be.

Filed Jan 12, 2017 · Steering · 130,000 miles · PA

While making a sharp left turn on a city street the power steering assist system failed completely! I barely avoided a collision. Apparently there have been thousands of similar failures. Why hasn't ford paid for a repair on a system which is obviously flawed and dangerous when it fails!

Filed Dec 4, 2016 · Acceleration, Fuel system · 40,000 miles · WV

Throttle body problem. All of a sudden I had no power and barely made it home. I had to be towed to ramey ford in princeton, wv they replaced throttle body but I had to pay $100 deductible. This car was part of a customer service arrangement worked out with the federal safety agency but the VIN was not included and I was told it was not covered for cost of replacement . This was a very dangerous situation and could have resulted in an accident. I feel the part should have been replaced without any charge since other vehicles in this class had the same problem. There was no offer to reimburse me for my tow since the vehicle was totally disabled. This was a problem that ford and the federal safety agency were aware of and my vehicle had the same problem as others. I feel that I should not have to pay for labor or tow to correct a defect.

Filed Nov 7, 2016 · Engine · 93,000 miles · MD

2009 mercury mariner hybrid with 93000 miles driving 50 MPH on a six-lane blvd. Hesitates briefly, then accelerator ceases to function completely. Despite the extremely dangerous situation, we managed to maneuver the car off the road to safety. Warning light (triangle with exclamation point) and warning message "stop safely now". The car computer knows there is a problem, why doesn't ford? They conducted a "customer satisfaction program" for millions of escape and mariner owners for this very issue - throttle body defect - but not hybrids. Why not? It cost us $300 and nearly a multi-car accident. Ford needs to be held accountable for manufacturers defects in all cars, not just some. Putting families in harm's way because ford doesn't have the integrity to take responsibility for their vehicle issues is completely unacceptable. This should be investigated, and ford needs to be held liable.

Filed Oct 26, 2016 · Brakes · 105,900 miles · FL

The ABS system turn off, took to shop they could not fine trouble it had reset. Today same thing ABS turn off. Will take it in if it does not reset. Both times that it turn off car was parked and I was just starting it to leave..*I would see a warning that says 'regen brake failure.' *the ABS just went out one day while coming home from the store, and would reset when the car sat for a while. And syre was not fun to drive, but unless it stayed off there was not much they could do at ford to fine out what was going on. It went off and stayed off and then ford fixed it, replaced the ABS module it has been o.k. Since then. I did not like the price of the repair at $1933.03. I do not think a women would be able to stop her car if this happen to her while driving you need too much push on the brake to stop even when going slow, and if going the speed posted two feet maybe*smch

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Questions about the 2009 Mercury Mariner Hybrid

Is the 2009 Mercury Mariner Hybrid reliable?

Owners have filed 21 complaints about the 2009 Mercury Mariner Hybrid, fewer than a typical Mariner Hybrid model year.

What is the 2009 Mercury Mariner Hybrid year score?

The 2009 Mercury Mariner Hybrid scores 76 out of 100 (average). The score compares it with the other model years of the Mercury Mariner Hybrid: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2009 Mercury Mariner Hybrid?

Steering, with 8 complaints, typically around 119,000 miles. Next is acceleration (6).

How many recalls does the 2009 Mercury Mariner Hybrid have?

No recalls on record.

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