Wiring harness or short circuit on the 2007 Chevrolet Silverado 2500
1 fire 1 of the 7 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
Only 5 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When wiring harness or short circuit gets reported
There are 7 reports of wiring harness or short circuit on the 2007 Chevrolet Silverado 2500, 5 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 88,000 miles. It is the 11th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 27,390 miles | — | — |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 1 a fire is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $400–$3,500 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 8 model years of this car. It shows up earliest on the 2020, at a median of 20,000 miles, and latest on the 2013 at 170,000 miles.
By volume the 2020 carries the most reports, with 12; the 2007 has 7. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
2007 chevy silverado 2500hd. Smelt burning plastic from time to time and blamed it on outside fumes. August 2009 heater blower fan only worked on certain settings for a couple of days and finally totally failed. Looked up problem on internet and found that the blower resistor had failed which seemed to be a quite common problem. I located the problem myself and found the resistor and the wiring harness had melted together and the wires had melted the plastic off about 1 1/2" from the harness. From other research on the internet I found that one truck actually caught fire. I explained to chevy customer service my safety concerns and my disgust as to why this problem is not a recall. I don't believe that they are interested in resolving the problem. Could you please look into the matter some more and call electricalconnection.com for more info. They sell the replacement part in a kit for the diyer and from what they tell me it is a common defect with gm since 1999 and they sell quite alot of their kits to people who's vehicles are out of warranty. *tr
I purchased a new 2007 4x4 chevy silverado 2500 hd duramax diesel truck. I have had my hubs fail twice leaving me without brakes. This last time my hub failed my brakes locked up while driving. Abs system failed. My children & I were very startled. I am a mother of six children. I have little faith in my vehicle being safe for children or anyone. $913.00 dollars later it is fixed. All new wiring harness & hub.warranty didn't cover. My vehicle has in the 3 years that I have owned it has spent approx. 8 months total being serviced for malfunctions. Steering has been an issue throughout also. Steering shaft has been replaced 2 times along with entire steering box. It has had entire rear end replacement also. I have 3 years of service proof. My list goes on and on. *tr the contact stated that the vehicles safety issues started after the lift was installed .
I purchased a new 2007 4x4 chevy silverado 2500 hd duramax diesel truck. I have had my hubs fail twice leaving me without brakes. This last time my hub failed my brakes locked up while driving. Abs system failed. My children & I were very startled. I am a mother of six children. I have little faith in my vehicle being safe for children or anyone. $913.00 dollars later it is fixed. All new wiring harness & hub.warranty didn't cover. My vehicle has in the 3 years that I have owned it has spent approx. 8 months total being serviced for malfunctions. Steering has been an issue throughout also. Steering shaft has been replaced 2 times along with entire steering box. It has had entire rear end replacement also. I have 3 years of service proof. My list goes on and on. *tr the contact stated that the vehicles safety issues started after the lift was installed .
Also reported on the 2007 Chevrolet Silverado 2500
Airbag inflator rupture
Other powertrain problem
Other body or interior problem
Loss of braking
Other engine problem
Other brake problem
How far this goes
This page is kept out of search results because 7 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 7 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does wiring harness or short circuit happen on the 2007 Chevrolet Silverado 2500?
Across 5 owner reports that included an odometer reading, half were filed by 25,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is wiring harness or short circuit on the 2007 Chevrolet Silverado 2500?
7 reports have been filed with NHTSA, about 0.3 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed