2009 Mercury Mariner Hybrid problems
Verdict · NHTSA data
Worth extra scrutiny
The 2009 Mercury Mariner Hybrid sits mid-pack among Mariner Hybrid years: 30 NHTSA complaints against a model median of roughly 23, with no recalls and 2 closed investigations.
Steering leads the complaint categories with 8 reports (27% of the total).
30
NHTSA complaints
0
Recalls
2
Investigations
2
Crash-involved
0
Fires reported
0
Injuries
0
Deaths
—
NCAP overall
How does 2009 compare to other Mariner Hybrid years?
What are the most common 2009 Mercury Mariner Hybrid problems?
| Component | Complaints | Share | vs prior year |
|---|---|---|---|
| Steering | 8 | 27% | ▼ down |
| Speed Control | 6 | 20% | ▼ down |
| Electrical System | 4 | 13% | ▼ down |
| Engine | 4 | 13% | ▼ down |
| Brakes | 4 | 13% | ▼ down |
| Fuel System | 3 | 10% | ▼ down |
| Transmission | 1 | 3% | ▼ down |
Consumer complaints filed with NHTSA
Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.
“POWER STEERING CUT OUT, QUIT WORKING, ON LEFT TURN, SPEED ABOUT 10 MPH. OUTAGE LASTED ABOUT 1-2 SECONDS. BELIEVE WOULD HAVE HIT FAR SIDE CURB IF STEERING HAD NOT SPONTANEOUSLY RECOVERED. THIS WAS FIRST OCCURRENCE. DROVE CAR DIRECTLY TO DEALER FROM INCIDENT; DIAGNOSIS TBD. AFRAID TO DRIVE. AT HIGHER…”
“TL*THE CONTACT OWNS A 2009 MERCURY MARINER HYBRID. THE CONTACT STATED THAT AFTER APPLYING THE BRAKES IN THE PARKING LOT THE VEHICLE ACCELERATED. THE VEHICLE DID NOT RESPOND TO THE BRAKES AND DID NOT STOP UNTIL THE VEHICLE CRASHED INTO A PARKED VEHICLE. AFTER HITTING THE VEHICLE THE RPMS CONTINUED…”
“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…”
“TL* THE CONTACT OWNS A 2009 MERCURY MARINER HYBRID. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE LOST POWER AND COULD NOT ACCELERATE OVER 40 MPH. THE FAILURE RECURRED ON ONE OTHER OCCASION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF…”
“VEHICLE LOSES ALL ABILITY TO CONTROL THE THROTTLE BOTH WHILE AT HIGHWAY SPEED AND WHEN PULLING AWAY FROM A STOP. "WRENCH" FAULT INDICATOR ON THE DASHBOARD ILLUMINATES. RESTARTING THE VEHICLE RESTORES NORMAL OPERATING CONDITIONS UNTIL THE ISSUE REAPPEARS. THERE IS NO FAULT CODE ON OBDII READER AFTER…”
2009 Mercury Mariner Hybrid — common questions
Is the 2009 Mercury Mariner Hybrid reliable?
It is close to typical for the Mariner Hybrid: 30 NHTSA complaints, 0 recalls, and 2 investigations on file.
What are the most common 2009 Mariner Hybrid problems?
According to NHTSA complaint data, the leading problem areas are steering (8 complaints), speed control (6 complaints), electrical system (4 complaints).
Does the 2009 Mercury Mariner Hybrid have recalls?
No. NHTSA lists no recall campaigns for the 2009 Mercury Mariner Hybrid.
Is the 2009 Mercury Mariner Hybrid under NHTSA investigation?
NHTSA opened 2 investigations into this model year; all are now closed.
Which Mercury Mariner Hybrid years should you avoid?
Based on complaint rates and open investigations, the Mariner Hybrid years to avoid are 2008, 2006, 2007. The cleanest record among Mariner Hybrid years belongs to 2013.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.