2005 Mercury Montego Electrical system Problems
- Complaints
- 27about this part
- Share
- 20%of 135 total for the year
- Median mileage
- 79,500miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 27 complaints about the electrical system of the 2005 Mercury Montego, 20% of the 135 complaints for this model year. Where a mileage was given, the median is 79,500 miles. 1 of these say a crash was involved and 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“About 6 months ago all the dash indicators turned on. They went out for a few minutes then came back on and stayed on. I was told it was in the electrical harness. It would be a $700.00 plus cost to fix it. It is a common problem I would think there would be a recall on such a situation. I have to drive not knowing if there is trouble with the lights on full time.”
NHTSA complaint #10915332, filed 2016-10, 175,000 miles“Saw smoke coming from passenger's outside mirror, the metal was hot, then saw a small flame, under the mirror, so we pulled the fuse. A week later we put the fuse back in & smoke started coming from the mirror,again, so we pulled the fuse & have left it out. This fuse also controls the power seats, along with the outside mirrors. Both times the car was not running.”
NHTSA complaint #10272606, filed 2009-06, 52,450 miles“Parked car at home after dropping daughter off in town car performed normally. Five hours later went out to pick daughter up. Started car and had no speedometer, odometer, tachometer, no cluster panel at all. No lights on panel, A/C would not function and backup lights came on and stayed on. The wrench symbol light came on at this time. I tested the car daily with the same results, until tuesday, august 11th. I had an appt to take it in to a ford dealer to have it diagnosed. …”
NHTSA complaint #10747906, filed 2015-08, 142,691 miles“I own a 2005 Mercury Montego that has been a constant downward spiral.approx. 3 months ago, I had to replace the vehicles transmission,because I was told by ford that they do not sell the tools or parts to replace anything in it, the whole transmission had to be replaced.approx. 1 week ago, I was sitting at a traffic light and my car revved up to approx. 3500 RPM and pushed my car forward into traffic. …”
NHTSA complaint #10345904, filed 2010-07, 80,000 miles“The instrument gauge on my 2005 Mercury Montego just went dead . Nothing registered, so there was no reading on my speed, engine heat gauge, fuel level, or tachometer. This happened once in early spring of this year (2012), but did not repeat until recently. It is now june and the same thing has re-occurred about 10 times in the past two weeks. After turning the car off and restarting, this sometimes (but not always), fixes the problem. Most recently, if the gauges do work, the check engine light turns on. …”
NHTSA complaint #10460882, filed 2012-06, 89,000 milesRelated service bulletins
- 10021037Feb 26, 2007Intermittent instrument cluster operation - including gauges sweep/reset - multiple warning lights illuminated and/or reverse lights stay on. This applies to vehicles built…
- 10021036Feb 26, 2007Fuel gauge erratic/inaccurate and/or mil on with dtc p0463, b1202, b2627, b2879, and/or p2068.
- 10021061Aug 1, 2006Battery light illuminated.
- 10019807Apr 29, 2006Tenths digit not displayed on odometer after 10,000 miles/kilometers.
- 10019951Jan 1, 2006Intermittent instrument cluster gauge sweep/reset - multiple warning lights on - reverse lights on - vehicles built before 2/17/2006.
- 10014682Mar 21, 2005Intermittent headlamp flicker with no key in the ignition - vehicles built before 2/21/2005.
- 10011346Sep 1, 2004Wrench light on, diagnostic trouble code p0562 and transaxle in limp home mode after battery jump start.
- 10011345Sep 1, 2004Wrench light on, no engagement in drive or reverse and diagnostic trouble code p0942.
Electrical system: other model years
Other parts of the 2005 Mercury Montego
49 complaintsVehicle speed control
24 complaintsBrakes
18 complaintsFuel system
12 complaintsEngine
10 complaintsBody and structure
10 complaintsEngine cooling
7 complaintsOther or unknown
6 complaintsAir bags
5 complaintsExterior lighting
3 complaintsLatches, locks and linkages
3 complaintsSeat belts
2 complaints
← All problems reported for the 2005 Mercury Montego
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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