Alternator or charging system failure on the 2005 Jeep Grand Cherokee
When alternator or charging system failure gets reported
Owners of the 2005 Jeep Grand Cherokee report alternator or charging system failure at a median of 150,000 miles. A quarter of the reports come in before 70,000 miles and a quarter after 170,000 miles, from 9 reports that carried an odometer reading.
A part like this is normally expected to survive 98,000 miles. It is the 24th most-reported problem on this model year.
The mileage distribution
The reported range runs from 60,000 miles at the tenth percentile to 170,000 miles at the ninetieth, a spread of 112,093 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
0% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 59,710 miles | 70,000 miles | 148,500 miles | 171,803 miles | 171,803 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
Putting it right typically runs $450–$1,600 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 16 model years of this car. It shows up earliest on the 2003, at a median of 40,000 miles, and latest on the 1996 at 220,000 miles.
By volume the 2012 carries the most reports, with 257; the 2005 has 13. 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.
When I start and as I'm driving the truck the headlights are flickering along with the radio. The RPM and speedometer gauges are jumping up and down as I drive. I can hear a cluster of clicking noises coming from behind the radio, underneath the steering wheel in the wiring harness's and also from underneath the hood in the fuze box closet to the driver. The heated seats do not work along with the radio and gps, the turning signals and the fog lights do not work when this is going on. The dealer has no idea what's wrong with the car, I have already changed the battery, alternator, and starter. This seams to be an ongoing problem with this truck and its a serious safety hazard.
2005 jeep cherokee laredo stalls while being driven at less than 50 mi/h and after backing up in the driveway almost every day (has been doing it for a year now). It has 70,000 miles on. Replaced alternator and battery after shut off completely in june 2011 at 67,000 miles. *tr
Tl* the contact owns a 2005 jeep grand cherokee. While driving various speeds, all the exterior, interior, and instrument panel lighting failed to illuminate. An independent mechanic was unable to duplicate the failure and recommended that the alternator and battery be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to the mechanic again and the diagnosis was that the ignition switch needed to be replaced. The vehicle was repaired, but the failure persisted. The vehicle was taken to the mechanic a third time and the ignition switch was repaired again. The failure recurred a month after the repair. The manufacturer was not notified and the vehicle was not repaired. The failure mileage was 60,000.
Also reported on the 2005 Jeep Grand Cherokee
Other electrical problem
Other body or interior problem
Ignition switch, key fob or immobilizer failure
Other engine problem
Other powertrain problem
No-start or intermittent start failure
How far this goes
Complaints are voluntary, so 13 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 alternator or charging system failure happen on the 2005 Jeep Grand Cherokee?
Across 9 owner reports that included an odometer reading, half were filed by 150,000 miles. A quarter were filed before 70,000 miles and a quarter after 170,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is alternator or charging system failure on the 2005 Jeep Grand Cherokee?
13 reports have been filed with NHTSA, about 0.1 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