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Electrical systemPart report

2007 Mercury Mariner Hybrid Electrical system Problems

Complaints
4about this part
Share
13%of 31 total for the year
Median mileage
70,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2007 Mercury Mariner Hybrid, 13% of the 31 complaints for this model year. Where a mileage was given, the median is 70,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My 22 year old daughter was driving my 2007 Mercury Mariner Hybrid back to college after spring break at home. She was traveling at 75 MPH in the fast lane and the engine just quit. She had been driving for several hours at freeway speed. The stop safely light comes on and she was able to get to the right shoulder on electric power. Very scary! She waited 10 minutes and it fired back up and she was able to continue on to school another half hour. But she is now unsure when and if it will happen again. I purchased the vehicle used four years ago and it now has 70,000 miles. …”

NHTSA complaint #10507028, filed 2013-04, 70,000 miles

“I own a 2007 Mercury Mariner Hybrid I have about 76000 miles. The stop safely light comes on and car stops in middle of road without warning also with temp light most of the time the service engine wrench light comes on frequently”

NHTSA complaint #10393184, filed 2011-03

“The contact owns a 2007 Mercury Mariner Hybrid. The contact stated that the alarm system sounded independently. The vehicle was not diagnosed and the failure recurred. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,000.”

NHTSA complaint #10882656, filed 2016-07, 70,000 miles

“The contact owns a 2007 Mercury Mariner Hybrid. The contact received notification of NHTSA campaign number: 14v526000 (hybrid propulsion system) however, the part needed to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.”

NHTSA complaint #10682197, filed 2015-02

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2010111%
2009314%
20082219%
2007413%
2006824%

Other parts of the 2007 Mercury Mariner Hybrid

Brakes
8 complaints
Engine cooling
6 complaints
Engine
4 complaints
Hybrid propulsion system
3 complaints
Other or unknown
3 complaints
Transmission and drivetrain
3 complaints
Fuel system
2 complaints
Steering
2 complaints
Body and structure
2 complaints
Equipment
1 complaints
Seats
1 complaints
Suspension
1 complaints

← All problems reported for the 2007 Mercury Mariner Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology