NHTSA — Electrical System Problems

2.3

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
66,757 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 Mercury Mariner Hybrid electrical problems

electrical problem

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2008 Mercury Mariner Hybrid Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #2

Jun 062010

Mariner Hybrid

  • 40,211 miles

A D V E R T I S E M E N T S

Second unwarned total shut-down of all power on roadway - this one just 17 days after repairs and reprogramming by Ford dealership following first instance, which cut gas engine and electric motor power while traveling on los angeles freeway. This power shut-down occurred while trying to pull from parallel park spot onto busy blvd - lost all power 2 feet into traffic, able to roll back into curb before traffic reached me around semi-blind curve. After the first in-use failure on 5-17-10, I simultaneously reported the malfunction to Ford customer relations (case# 1432331380), and presented the vehicle for repair to cerritos [the following quotes from text of service record]; tech performed `eec test, revealing fault-codes: B1239, P1A0C and P0562. The tech also "found tsb (tech service bulletin) 07-25-12 with concern resolution" & he "contact[ed] Ford technical service hotline with concern." The tech "replaced the auxiliary airflow mode door actuator and reprogrammed the traction battery control module to latest calibration 8M64-10B687-ag. Final eec test passed." I was also informed that the part number for the replacement `airflow mode door actuator' differed from original, so the component has apparently been re-designed - but neither my wife nor I have received warnings from Ford that updates/repairs were recommended on either of our 2008 Mariner hybrids. This originally smelled like a `silent recall' to me...but this doesn't even rate as a `recall', because the work performed did not prevent the second occurrence of the equivalent malfunction just 17 days later. This is a totally unacceptable failure mode for any consumer transportation vehicle, because it occurs without warning, and leaves the driver completely defenseless, and with severely-reduced response options.

- Long Beach, CA, USA

problem #1

May 172010

Mariner Hybrid

  • 39,380 miles
On-freeway gas engine/electric motor shut-down. Driving in morning rush-hour traffic approximately 15 minutes after cold start in 60-degree weather, both the gasoline engine and the electric motor propulsion systems shut-down together without prior warning while the vehicle was in motion - "stop safely now" was the `too-little-too-late' info on the instrument panel. Neither power mode would restart with trans in neutral (I refused to try cycling ignition key to off, and risk steering lock). Fortunate to coast onto shoulder, where I had to move gear selector to park, turn ignition key full-off and then back to start, at which time normal operation resumed. Total loss of both power sources while in-use on a freeway ' and unable to re-activate without shifting transmission into park is absolutely inexcusable and unacceptable!

- Long Beach, CA, USA

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