Problems with 2005 Chevrolet Monte Carlo ELECTRICAL SYSTEM

When i first bought this car the boost gage was not working. a few days later the gas oil pressure and temperature gauges started going crazy. the temperature gauge needs to work to show overheating of engine to avoid damage. internet forums say this issue a very common issue. picture shows gauges on left after car running 10 min with approx half tank of gas

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the key failed to turn over in the ignition so the contact was unable to start the vehicle. the vin was included in nhtsa campaign number: 14v400000 (electrical system). the manufacturer was notified of the failure. the contact was waiting to be referred to an authorized dealer to diagnose the failure and provide the recall remedy. the failure mileage was not available. parts distribution disconnect.

Key fob quit working. i use the key to manually unlock car. however, after car is parked and off, the doors lock and unlock themselves. the front and rear lights flash while doors locking and unlocking. the other night, it was flashing morse code for over 24hours. i do not have on star connected. horn quit working 4 months right before key fob quit. i can't use my bright lights, because i lose dash lights, head lights. my son and i share this car to drive to work. since the lights started flashing all day and night, i felt it is unsafe for him to drive to work which is 40 miles one way. why so many issues that are not being taken serious? i drive my car during day time. i pray i make it to work. i have to drive 9 miles one way to work. however, i drive highway 75 with semi trucks going 70 miles an hour. if this car loses power on that highway, i will probably not survive. unsafe and not reliable vehicle. chevy should help us monte carlo owners get them fixed. thanks for your time.

Speedometer going nuts. stuck on 85mph while idle and off as well. periodically, the trac and abs lights will come on. when backing up and put in drive to go, the traction active light comes on and car will lug and grind.

Tl* the contact owns a 2005 chevrolet monte carlo. while driving at various speeds, the speedometer and fuel gauges became inoperable. the failure recurred randomly. the vehicle was not diagnosed nor repaired. the manufacturer was not notified of the failure. the failure mileage was 80,000.

2005 chevrolet monte carlo. consumer writes in regards to vehicle electrical system and recall issues. *smd the consumer stated the engine light illuminated. the consumer stated after the dealer performed the recall, the alarm no worked. *jb updated 09/02/15*lj updated 11/01/2017*cn

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the vehicle was taken to the dealer to complete the repair for nhtsa campaign number: 14v400000 (electrical system). a few days after the recall repair was performed, the pass key lock sensor illuminated. the dealer stated that the ignition switch needed to be replaced. the dealer stated that the magnet connection was not communicating with the key. the manufacturer was notified of the failure and provided no remedy. the approximate failure mileage was 80,052.

I took the car to a chevy dealer for the ignition switch recall dated july 3 2014.i told them about problems with the ignition switch such as the key can be pulled out when car is running and sometimes the starter stays on with engine running also problems turning the key.i waited while they did the recall service.when they were done they told me they put a plastic cover on the key.i started the car and found the problems were still there.i told them the recall was for a ignition switch not ignition key and their fix did nothing to fix the problem.they told me this fix is all they can do.a few weeks later,i could not get the car to shut off.i had to force the ignition off using a screwdriver and i had to buy a new ignition switch and install it myself however i will have to go to a locksmith so he could make the new key work on my door.150.00 foa a switch.still have to pay a locksmith.i want my family to be safe in my car.i don't think g m feels the same. *tr

1.)cannot drive with the brights on because it will unexpectedly trigger all lights to fail and you will be driving blind in the complete pitch black night. 2.)the speedometer, gas gauge, and temp gauge haven't worked since about 75,000 miles. i purchased this car brand new and have had it serviced as needed. this is a factory defect, not something that was caused somehow by me. i think that it is ridiculous that i have to deal with these defects with my own money when i specifically purchased a brand new car so i didn't have to deal with problems of the vehicle that one would associate with a used vehicle. the brights issue could literally kill people, i'm sure it probably has.

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the instrument cluster failed. the vehicle was not diagnosed or repaired. the manufacturer was made aware of the failure. the failure mileage was 142,000. the vin was unavailable.

Takatarecall stil till i have that problems

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that while driving at night, the headlights and instrument panel failed. the vehicle was not diagnosed or repaired. the manufacturer was not made aware of the failure. the failure mileage was 92,000.

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the sun roof connector plugs, which were connected to the motor, melted and produced smoke. additionally, the interior lights, instrument panel lights, and the lighting for some of the radio components failed. the vehicle was taken to a dealer, but was not diagnosed. the vehicle was not repaired. the manufacturer was made aware of the failure. the failure mileage was 205,000.

While driving home car's headlights became stuck on high beam and stayed stuck for several days then functioned as normal. a few weeks later while driving home at night headlights failed to function at all. signal lights and fog lights were all that illuminated the roads. visibility was only a couple of feet. dealership is aware of issue and has issued several technical service bulletins for it not only this model year, but others. they will not fix or even reduce costs to fix because they claim this is not a safety issue. not having any headlights at all is a huge safety issue in poor weather, but especially at night! upon inspecting multifunction switch in steering column and flipping external switch for high beams/wipers/signals to see if there is any function after a month of car sitting in drive, smoke began to steadily come out of steering column at switch. battery was diconnected which stopped the smoke. *js

Tl* the contact owns a 2005 chevrolet monte carlo. the contact received notice of nhtsa campaign number: 14v400000 (electrical system). the contact stated that the air bag, brakes, battery and check engine warning lights illuminated while the vehicle stalled. the vehicle was not diagnosed or repaired. the manufacturer was not made aware of the failures. the failure mileage was 166,000.

Tl* the contact owns a 2005 chevrolet monte carlo. while attempting to start the vehicle, the ignition failed to start without warning. the contact stated that the transmission was replaced. the vehicle was taken to a dealer where it was diagnosed that the body control module failed and needed to be replaced. the vehicle was repaired, but the failure was persistent. the manufacturer was notified of the failure. the failure mileage was approximately 80,000.

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the speedometer displayed the incorrect reading and occasionally register 80 mph in a 40 mph zone. the instrumental messaging center failure also caused the lights to flicker and become dim. the vehicle was taken to the dealer for diagnostic testing. the failure was located within the instrument cluster and it needed to be reprogrammed; however, the vehicle was not repaired. the transmission was replaced at 45,000 miles. the manufacturer was not made aware of the failure. the approximate failure mileage was 84,800. the approximate current mileage was 86,500.

Instrument panel cluster had to be replaced after speedometer and volt meter stopped working. paid dealership $440.00 to replace. *tr

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that while driving approximately 70 mph, the speedometer, tachometer and fuel gauge readings fluctuated. the failure recurred whenever the vehicle was in operation. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the problem. the approximate failure mileage was 100,000. the vin was unavailable.

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the front driver's side seat warmer was activated when the seat caught fire. the contact shut off the driver's side seat warmer. no one was injured during the fire. the fire department was not called. the contact took the vehicle to a dealer for a diagnostic testing where the dealer advised that a short in the driver's side seat warmer caused the fire. the dealer did not perform any repairs to the vehicle. the failure mileage was 75,000.

I cannot use the high beams on the car. when i do the dashboard electric and headlights all turn off. switching it back to low beams they will come back on. cannot use when driving. *tr

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the instrumental panel gauges were all non-functional. the contact stated that he was unable to view the thermostat, speedometer, fuel levels, etc. the vehicle was taken to the dealer who advised that they were unable to diagnose the failure. the vehicle was not repaired. the failure mileage was approximately 176,000. the current mileage was approximately 180,000.

All of my gauges stopped working correctly. this problem first started several months ago with my temperature gauge and battery gauges. now my speedometer is fluctuating irratically and getting stuck. after review of other blogs and posts this is definately a manufacture defect and should be fixed by the gm. *tt

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the instrumental panel failed and the contact was unable to read the speedometer, fuel gauge or the tachometer. the vehicle was taken to the dealer who inspected the vehicle and located the failure at the instrument cluster. the vehicle was not repaired and the manufacturer was not made aware of the failure. the failure mileage was 69,000 and the current mileage was 78,000. updated 03/28/12*lj updated 03/30/12

The steering problem was from the beginning when i bought the car used with 19,000 miles.. very tight steering, was in warranty at the time and had it serviced. however, all they said was it was adjusted. *tr this was the spring of 2006. steering at this time is still very tight, and it is real bad in summer months. the car now has 39,000 approx. if my car was recalled because of this, i was never notified the speedometer after the car warms up, begins to stop working. usually after stopping at a light, i would notice the speedometer registers below zero (0) then i know upon accelerating it will not go up even to 45 mph...at times it sticks to around 25 or so. then after abruptly stopping and then going forward, it will go back to normal. this is dangerous, because i try to stay within the proper speed, according to other cars around me, but if i was to go slower than i thought to be, i could get slammed into because of not keeping up with others. i fear this. the temperature gauge is also not reading right, it usually should stay below half temp... it goes up above even though i have had anti freeze replaced with fresh. that too is dangerous. other than these things, i have had little to no problems. i love the car, i just hate when there is a problem. i would like for the manufacturer to look into this, as i have noticed i am not the only one with these concerns of the exact same problem. for me, the steering is the most dangerous. now if my car was in any recall i may not have been notified, as i moved out west for a few years, and address had changed. i am now back home. naturally when your new / used car warranty stops, then "things" happen and still making car payments makes it hard to service the expensive parts.

All of the gauges have completely gone out in my 2005 chevy monte carlo ss supercharged including the speedometer, gas gauge, temperature gauge, oil gauge, etc. *tr

The instrument cluster of my vehicle needs replacing. the speedometer does not register the correct speed. this is a very expensive part to replace and i believe this is a vast problem with these cars. gm should have a recall of this defect.

Traveling on us 90 w. all of a sudden no gauges. for weeks there after i was scared and extremely concerned my car was over heating(maxed out temp range)and speedometer on zero. in short it does every thing reading wise except correctly once the key is used. i (think ) i'm hearing a "pop or distorted/short" in the speakers. .i have not installed or otherwise altered any equipment or made any changes to the original equipment of any kind... after reviewing the internet and asking other owners of like make/models and the "other closely related models i.e impala i've been told more having this problem than not. i'm also finding it seem to be a problem rather earl in production years and appears to be a defect in engineering/assembly of these automobiles. (perhaps a full review of electrical patient/design and assembly methods may resolve why this is happening. i truly want to start a class action to "repair" (no money)with new re-designed installs by dealer. as of today my "carlo" is at 89000 mi... please feel free to contact me if i can help or you know of a correct fix.dealer wants 700 to replace dash..(is this new dash different in any way from oem build i wonder)also my avalanche truck at 60,000+ doing the same thing. does it take a fire or death to recognize this a recurring default in mfg. of chevrolets. gm and its dealers are mum and it must be my fault. perhaps a complete electrical review of gm engineering is in order not withstanding durability standards and who makes the wires/assembly and where..i'm just saying. *tr

2005 monte carlo speedometer not working told the dealer about the problem and how i researched it on the internet and found out it is a very common problem for this vehicle and why this is not a recall issue of coarse they do not know. *tr

The speedometer on my 2005 chevy monte carlo registers the wrong speed. while in park, it reads different speeds from negative to 120 mph. while driving, it does not register correct speed. this is an important safety issue. there are many other monte carlo owners with exact same complaint. mine began right around 70,000 miles, the same as others. dealer states it is not recalled or under warranty and will cost $600. to repair. this defect should be recalled before someone gets killed going the wrong speed because of this defect! *tr

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the speedometer failed. the vehicle was not taken to a dealer or local mechanic for diagnosis of the failure. the manufacturer was contacted and the contact was advised that the vehicle was not under warranty. the vehicle was not repaired. the failure mileage was 72,000 and the current mileage was 75,600.

Tl*the contact owns a 2005 chevrolet monte carlo. while driving approximately 35 mph, the speedometer suddenly stopped functioning; the speedometer indicated that the vehicle was traveling 120 mph. the failure occurred intermittently in cold weather. if the contact allowed the vehicle to warm up for fifteen minutes, the failure did not occur. the vehicle had not been inspected or repaired. the failure mileage was approximately 45,000 and the current mileage was 47,136.

A yr. aft. i bought my 2005 monte carlo, things began going wrong with it. first 2 things to go:the cruise control & re-window defroster. the next yr, while driving at night on the interstate, i switched my lights to brights & within seconds i had no lights at all! this could of caused a very bad accident, i was able to quickly switch the lights back to dim & luckily they came back on. since then, i no longer use the bright lights, for fear of my lights not coming back on. then it seemed like everything went haywire after that, odometer showed that i was going 110, gas gauge quit & temp gauge registered past 260. not a fun night to be driving, not knowing my correct speed, how much gas i had, if my car was going to overheat or have no lights! since 6/15/2012 the tach now registers between 6000-7000 rpms & none of the gauges are working properly. my car also smells like it has an exhaust or fuel leak which comes thru the vents, it makes me sick & gives me headaches. i took it to a dealer a yr. ago, paid $98.00 for them to tell me they couldn't find a problem. to this day, my car still smells like gasoline, i pray it doesn't catch on fire. tonight i've been researching these problems & found that the faulty gauges is a very common problem with these cars & quite expensive to fix. i feel chevy should be held responsible for repairing this problem & all the others, after all they're the ones who built a car with many serious problems. this is very unfair for the many consumers out there who have spent their hard earned money to buy this car. not everyone can afford to get this fixed along with paying the car payment. i don't understand why they can't be made to take care of this. what would have to happen in order to make them pay? what's listed above? a crash, fire, injury or death? shouldn't have to be that way, something needs to be done before any of that happens! *tt

I have 2005 chevrolet monte carlo with currently 58,228 miles. recently i have began experiencing problems with my speedometer either sticking or not returning to the '0' position. from my internet search, there is no current recalls for the instrument panel cluster. i have done further research to see there are many people out there who are experiencing this same problem. *tr

Periodically the car will not start. there was a recall that only replaced a portion of the key. the key will turn and all lights come on but it wont start. if you wait a few minutes and try again the car starts even though you have done nothing different. we took it to a repair shop and they are stating it needs a new ignition. i do not have a heavy keyring and only use the single key without the fob or anything and still have the problem.

Heater blower motor fire's on 2005 chevy monte carlo ls, replaced twice !!! fire both times. the first time was probably around 18,000 miles or so. then the second time was around 27,000 miles or so. (i would have to find my reciepts to verify exactly). but, both times the car's blower motor was on fire !!! alot of smoke, thick electrical burning smell. a man came over to help me (as i am handicapped by polio, and could not get out of my car myself), after it had been burning for about 1/2 hour , the man poured water into the firewall area that was burning, it still took about another half hour to try to stop the fire. but only the fan motor and close vacinity burned. but it could have been worse if that man had not come along and poured bottle water on it repeatedly for many, many tries before extinguishing the fire. my car was repaired at where i purchased the monte carlo new.". right now (6-20-11) i have only 28,000 miles on this 2005 monte carlo. i have also, just had to replace the wiper motor., a few weeks ago. !!! these should be recalled and gm should have to make these repairs or refund the money that people like me have already shelled out for these very costly repairs !!! now...i also have problems with my speedometer not working right. and gas gauge, "the entire cluster is bad, at an approximate cost of around $600.00 (six hundred dollars). this also should be recalled for safety. my speedometer might show 90 mph when i know i am going maybe 40. or it might show 20, when i'm on the highway doing about 70 !!! sometimes the speedometer goes all the way around - past 120mph . yesterday, when i stopped my car in the driveway, it showed i was still going 60 mph while sitting still in my driveway. help please, make gm recall and re-imburse people for these repairs !!! information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) **tt

I have a 2005 monte carlo with only 87,000 miles. while driving on the highway i was going approx. 55 miles an hour when the speedometer started speeding up saying i was going over 120. now the speedometer is saying 120 miles an hour in park. i have called the car dealership where i bought the car and they told me that it would be over $500.00 to fix. i have noticed that this is happening alot on the 2005 monte carlo's. *tr

Tl* the contact owns a 2005 chevrolet monte carlo. the contact stated that the instrument panel would fail sporadically and the gauges would read inaccurately, such as speeds traveled and fuel levels. the contact stated that while sitting at a traffic stop, the speedometer indicated that he was traveling 100 mph. the vehicle was not inspected or repaired. the failure mileage was 70,000 and the current mileage was 77,000.

First voltage meter quit working then speedometer and recently tachometer quit.

The speedometer and tachometer in my wife's 2005 chevrolet monte carlo started showing the wrong speed when we were driving on the highway. i set the cruise control at 75, yet the speedometer said i was going over 100. at first the problem was sporadic, then became continuous. i took the car to a local dealership and had the instrument cluster replaced for about $460. when i bought the car, i also purchased an extended warranty, so i had to pay $200 of the original bill, however this seems to be a well-known problem over several years of gm products. there had not been any accidents while this was out, but my daughter received a speeding ticket and i received 2 warnings for speed, all while driving in town. *tr

2005 chevy monte carlo speedometer, tachometer. and thermostat gauges do not work. *tr

2005 chevrolet monte carlo ls - speedometer registered over 100 mph while driving at 55 mph. once pegged it would not return to zero, the gauge remained at 50 - 60 mph. while researching the problem i found that gm has had numerous problems with various model cars and suv speedometer and at least one class action suit was brought against them. *tr

2005 monte carlo. consumer writes in regards to speedometer failure *tgw the consumer stated the speedometer would read any where from 80-90 mph. *jb

I was driving my 2005 monte carlo at night and my speedometer and tachometer began to operate erratically and stopped working. the car had about 46,700 miles on it when the malfunction occurred. i reported this to the chevrolet customer service center on 3/1/10 and they said it was not covered. the csr admitted that it was unsafe to operate the car with a faulty speedometer but told me to drive it to the chevrolet dealership anyway. (?) the failure of general motors dashboard electronics is reported extensively on the internet. there are at least 57 complaints on the nhtsa web site about the same problem. gm agreed to pay for trucks and suvs for 2002 - 2004 model years but will not repair any automobiles. gm received millions of dollars in a settlement from delphi electronics for faulty parts in a closed settlement. however, gm will not correct the problem with these gauges. this appears to be similar to the current toyota failure to respond to the floor mat foot pedal hazards. please address this problem before someone gets seriously injured or killed by operating gm automobiles with known or possible defective instrument cluster electronics. respectfully. *tr

Speedometer erratic and inaccurate since early 2009 with about 60,000 miles on the odometer. haven't been able to tell how fast the car is going since then. while driving slow on residential streets, the speedometer registers 120 mph or more. while driving highway speed on i-95, the speedometer sometimes registers 20 mph. the tachometer also does not work properly and the gas and temperature guages are unreliable. upon checking the internet for similar problems, found this has been a common complaint with the 2005 monte carlo, as well as earlier model gm vehicles. while the earlier models have been recalled for this problem, the 2005 monte carlo has not. currently waiting for a recall on the 2005 monte carlo, as this is a safety concern and repairs should be comped by gm. dealer estimates repair cost between $600 and $900. daughter received a highway speeding ticket in february 2010 due to inaccurate speedometer reading.

All of the gauges on my instrument cluster panel are working improperly. the speedometer is over 140 mph, the fuel gage sometimes reads e even when there is a fuel tank of gas in the car. the volt will set at 8 (the lowest point) and after driving the car for an hour or so will finally move to above the middle point. the gage indicators vary from day to day and it is very stressful because the indicators that are suppose to assist me while driving are not working and feel that it is major safety issue for myself and others to be out on the road with a car that is not functioning the way it is suppose to. i have had the car serviced and everything works properly, but the panel itself. *tr

Owned this 2005 monte carlo for over 3 years now, first incident was around 50 to 60000 miles, 2 years ago, my then mechanic changed out something in my ignition switch that cured the security lite issue. i have the security lite on again while driving at around 95000 miles, afraid to turn the car off, but, if i am at home, i will shut the car off and immediately see if it will restart and it does, after about 15 minutes running, the security lite pops on again and stays on! now, reading all this gm passlock system issues, it is very clear gm needs to correct this problem, and it is a problem of gm! the money we pay for cars and for this to continue is unacceptable. the dealerships wants to replace the bcm, of course, that is the most expensive part and it is not solving the issue, they are playing a guessing game with our wallets! ! it is apparent there is a defect somewhere in the passlock security and i find this as many others do unacceptable to the point where i will not ever buy another gm product and if everyone in these complaints i have read does the same thing, well, gm, i think you will have ramifications from it. why don't you please make it right with the chevy customers that gives you your job, because if no one is buying gm, there will be no job. i would think gm can restore a good reputation if this was solved. we the people owning gm with your security issue is requesting a final solution to this annoying ongoing problem! so what do you say gm, you think a recall is in order for the passlock security lite issues on the chevys? we the people believe there needs to be one quickly! *tr

Speedometer sticks and does not work properly. as well as other clusters on the instrument panel. this is very dangerous and i have read of several others having the same problem online. *tr

2005 monte carlo speedometer gage faulty reading inaccurate or freezes understanding there are numerous other monte carlo owners with the same problem and also with other gauges. *tr

A i p cluster. *tr