Mariner Hybrid (2006)
Reliability Score
Complaints by Engine Code
Every complaint of any kind (brakes, airbags, electrical and the rest) whose VIN names the engine, across all model years. The score above counts only engine, transmission and drivetrain complaints, so its figures for the same engine are smaller. Fire, injury and death figures count complaints that report one.
2.3-I4-Hybrid
2.3L 4-cyl / 133 hpView details
Complaint Breakdown
Show 1 additional engine variant with limited data
Mercury Mariner Hybrid Unidentified Engine
View details
Complaint Breakdown
Battery & Propulsion Reliability
Hybrid (HEV)
Battery & propulsion complaint analysis for the 2006 Mercury Mariner Hybrid
Too few battery-related complaints to set against other hybrids yet.
What kind of battery complaint?
What the 4 battery-related complaints describe. One complaint can name more than one of these, so the shares add up to more than 100%. They describe what owners complained about, not how often the vehicle fails.
Hybrid system warnings, eCVT, motor-generator, hybrid transaxle.
Regen brake feel, one-pedal driving, B-mode complaints.
Battery & propulsion recalls (1)
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 fail resulting in the hybrid electronics overheating.
Consequence: If the hybrid electronics system overheats, it may shut down the powertrain, resulting in a stall-like condition, increasing the risk of a crash.
Sample complaint excerpts
Hybrid Drivetrain
- [2006] I WAS DRIVING MY 2006 MERCURY MARINER HYBRID DOWN THE ROAD GOING APPROXIMATELY 35-40 MPH. THE VEHICLE SHUT OFF AND THE DASH READ STOP SAFELY NOW. I COULD STILL STEER AND BRAKE. IT WOULD NOT RESTART RIGHT AWAY. I TRIED RESTARTING IN ABOUT A HALF AN HOUR AND IT STARTED. I THEN DROVE FOR APPROXIMATELY 100 YARDS AND THE VEHICLE SHUT OFF AGAIN AND THE SAME DASH READING . I FINALLY AFTER SEVERAL ATT
- [2006] IN APRIL 2014 MY GIRLFRIEND WAS DRIVING OUR 2006 MERCURY MARINER WHEN IT SHUT OFF WHILE DRIVING. WAS TOLD TO RESET COMPUTER WHICH WE DID. THE NEXT DAY IT SHUT OFF IN AN INTERSECTION. LUCKILY NO ACCIDENT BUT UNDER NO CIRCUMSTANCES SHOULD THE CAR COMPUTER SHUT THE CAR OFF WHILE DRIVING!!!!!! WAS WIRING HARNESS FOR HYBRID BATTERY. THE NEXT MONTH SHE WAS DRIVING AND LOST ALL POWER STEERING WHILE
- [2006] ON I-66W VEHICLE LOST ENGINE POWER AT HIGHWAY SPEED. DISPLAYED STOP SAFELY NOW AND MASTER VEHICLE ELECTRICAL HAZARD WARNING LAMP. THE INCIDENT WAS EXTREMELY HARROWING FOR THE DRIVER AS THE POWER CUTOFF WAS UNEXPECTED AND IMMEDIATE. COASTED TO SHOULDER. A RESTART, PER THE OWNER MANUAL, WAS ATTEMPTED BUT DID NOT WORK. TRANSPORTED ON FLATBED TO FORD DEALERSHIP. DEALERSHIP STATED HYBRID BATTERY
Regenerative Braking
- [2006] I PUT MY 2006 MERCURY MARINER HYBRID INTO REVERSE TO BACK OUT OF MY DRIVE WAY. I APPLIED A LITTLE GAS AND BEGAN ROLLING DOWN THE INCLINE TOWARDS THE STREET. AS I APPROACHED THE STREET I PUT ON MY BRAKES, BUT NOTHING HAPPENED AND I FAILED TO SLOW DOWN. A CODE DISPLAYED ON MY DASH READING, "REGEN BRAKES" THE LAST WORD WAS EITHER FAILURE OR DISABLED. I CAN'T REMEMBER BECAUSE I WAS IN A PANIC ABOU
Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. The rate divides those complaints by the electrified versions built, from the production counts makers report to NHTSA, and it is not adjusted for age. Death and injury figures count complaints that report one, not the number an owner typed in.
Owner Complaints by System
Complaints owners filed with NHTSA about the Mercury Mariner Hybrid, counted across every engine. A complaint can name more than one system.
Recalls (4)
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 that was rebuilt between June 11, 2015 through July 15, 2015. These service repair part transmissions have a shift lever bolt that may not be properly tightened. As a result, the shift control lever could disengage from the transmission without warning.
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 incorrect dimensions of a 42mm bore, 76mm outer dimension, and 39mm width, instead of a 42mm bore, 78mm outer dimension and a 45mm width.
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 fail resulting in the hybrid electronics overheating.
ON CERTAIN TRUCKS, PASSENGER CARS AND SPORT UTILITY VEHICLES, THE WINDSHIELD WIPER MOTOR MAY HAVE BEEN PRODUCED WITHOUT GREASE BEING APPLIED TO THE OUTPUT SHAFT GEAR.
Alternatives in Compact Sedan
Frequently Asked Questions
What are the most common 2006-2006 Mercury Mariner Hybrid complaints?
Owners have filed 38 complaints with NHTSA about the 2006-2006 Mercury Mariner Hybrid. The systems they name most often are the brakes, the electrical system and the engine.
Is the 2006-2006 Mercury Mariner Hybrid a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 38 complaints with NHTSA about the 2006-2006 Mercury Mariner Hybrid. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2006-2006 Mercury Mariner Hybrid have?
NHTSA has 38 owner complaints on file for the 2006-2006 Mercury Mariner Hybrid as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2006-2006 Mercury Mariner Hybrid?
NHTSA lists 4 recalls covering some 2006-2006 Mercury Mariner Hybrid vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Mercury Mariner Hybrid?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the brakes, the electrical system and the engine, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
Does the Mariner Hybrid have NHTSA crash test ratings?
NHTSA has not published crash test ratings for the 2006 Mercury Mariner Hybrid. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.
Data from NHTSA federal complaints database. 38 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-18.