Problems with 2005 GMC Envoy ELECTRICAL SYSTEM

As reported by many other gm customers my vehicle has experienced the same fuel gauge/sending unit failure. it began slowly with minor inaccuracies in fuel amount. then it quickly and steadily got worse until the fuel gauge doesn't work at all. i understand that gm acknowledges the problem, but refuses to pay the full price. i believe the nhtsa should force them to fully repair their faulty equipment which renders the driver blind as to how much fuel they may have. this could be very dangerous. *tr

Tl* the contact owns 2005 gmc envoy. the contact stated that while driving, the speedometer failed to display an actual speed. the vehicle was taken to a private mechanic and the mechanic stated that the instrument cluster needed to be replaced. the manufacturer was contacted. the vehicle was not repaired. the failure mileage was 85,000 and the current mileage was 85,400.

While driving on the highway noticed that the speedometer was pegged at over 120mph. when i stopped it was still pegged over 120 mph. i also had to have repairs to the gas gauge. i had just filled up and the low fuel light was on. *tr

2005 gmc envoy out of the blue my speedometer works intermittently and my gas gauge reads empty with light on even though i have a full tank of gas! additionally the factory speakers work intermittently. this vehicle has electrical issues! *tr

Fuel gauges is showing empty when the vehicle is full of gasoline. odometer is not reading the correct speed. temperature gauge is malfunctioning. on google several complaints about this is widely known. what is gmc doing to resolve these issues? the tax payers help bail out gmc and now we are not being treated unfairly where is our justice? please help, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr

Headlights began to dim, then brighten repeatedly, as to appear to be "flashing" other drivers. shortly after, the oil pressure gauge malfunctioned. after the oil pressure gauge, a few days later the battery gauge malfunctioned. a few weeks later, the gas gauge stopped working right. now, the engine continuously jerks, like it is missing due to lack of fuel. contacted gmc on 11-09-2012. no solution. *tr

The suv has shut off on me three times in the last 2 1/2 yrs (the time i have owned it. ) each time i was just driving on the city streets going about 30 mph. all of a sudden the car just shut off and all lights, etc just turned off. i am concerned wondering if perhaps there is a problem with the 2005 envoy ignition switch as well? no, it was not the battery or anything to do with the servicing of the suv. i take care of the vehicle and i don't drive 200 miles a month. i guess i am lucky that each time i was not gong fast and the suv just slowed down and came to a stop, on the side of the road. however the 2nd time, i had 2 little girls in the car with me and it concerned me a great deal.each time the suv started back up and i was able to resume driving after about 2 minutes. what if i had been going faster ? what if i had been on a highway etc. if there is an issue with the ignition, please lets fix it before someone dies. i will make sure everyone in my family know about the shut off problems i have had with the car. just in case something happens while i am driving it. *tr

I just bought my car from a private party on monday 4/23/12. my speedometer was stuck on 80 mph yesterday when it was in park and when i drove it. now today is is stuck at 120 mph. *tr

The speedometer on my 2005 gmc envoy has stopped working properly & also the thermostat gauge & the gas gauge. this is a common problem among envoy owner's & is a safety issue. the instrument cluster needs to be recalled & replaced. *jb

I received a letter from gmc approximately a year ago stating that there was a recall to the fuel gauge on my vehicle. i didn't think anything of it since i had not experienced the issue and the letter stated not to take it to the dealer unless you currently had the problem. as of a week ago the fuel gauge stopped working. i fueled up until the tank was full and the gauge reads as if the tank is empty and the low fuel light is on. in addition the speedometer has is having issues now as well. it sticks at highway speed and then just goes to zero and stays there. if it weren't for my gps i would have no clue what rate of speed i am traveling. i have contacted gmc customer service as well as the dealership and the repair for the fuel gauge will cost me $240 with gmc paying the other half. it seems to me that they were aware that there was an issue before i did so why am i now stuck with the repair bills? why was this not fixed before the vehicle was sold to me since i purchased it used from the dealership? something should be done about this.i should not be held accountable for gmc's errors! in addition there are recalls on the other gmc models for the cluster gauge that affects the speedometer. the envoy was not included because there were not a sufficient number of complaints. once again why should i be stuck holding the bag on faulty equipment? what can be done to get this resolved? *tr

My 2005 envoy speedometer stops working or sticks. it also does not give correct speed. i currently have to rely on my gps for speed control. are there any recalls on my vehicle for this problem? *tr

I purchased my envoy approx. 1 year ago. i have 105,000 miles on it currently. my speedometer would get stuck at 50 mph but would seem to always end up fixing itself. now it is pegged at 120 and has been that way for 2 months. # 5 on my ac/heat blower is not working. my engine light is on. my windshield wipers turn on every time i start my car. i can not turn them off , usually after about 30 wipes it will turn off. this is very frustrating to me. as i am researching these problems on the internet, hoping to find some sort of recall, i find many other envoy owners with the same problems!!!! i really feel that gmc should be responsible for this as many people are in this situation. i have to say with this many problems, it's the vehicle not the people and i think gmc needs to back their product and take care of these issues. *tr

While driving speed control goes back and forth. also when come to stop it stays stuck? fuel gauge does not properly display correct amout of fuel in tank. *tr

I have had a problem in the past with the fuel gauge reading empty continuously as i have read from many other complaints. recently i experienced a problem with the oil pressure gauge. at first the check engine light appeared intermittently and then the oil pressure gauge dropped to zero, at which time the message in on the lcd reading said "stop engine" and "oil pressure low". i immediately went to my gas station and checked the oil, which was only down a 1/4 tank. my mechanic stopped the car and started it again and the oil pressure gauge reset itself but once i started to drive the car again, the oil pressure dropped. my mechanic believes it is another sensor problem like the fuel sensor but is not completely sure. i only started with this issue today but it is more worrisome to me than keeping track of how much gas should be in my tank. i am curious to know if others have started to experience this problem. i have had the car since it was brand new and have drive 79000 miles. i also had a major issue with the suspension system with i believe is common in this vehicle. *tr

I was driving down the highway when i noticed that the speedometer indicated that i was going 90+ mph. i slowed down to the point that people were passing me in a 65mph zone and my speedometer was indicating 60 mph. i pulled over and stopped the vehicle and the speedometer needle continued to erratically go up and down. *tr

Tl* the contact owns a 2005 gmc envoy. the contact stated that while driving 40 mph, the speedometer began to malfunction. after some time, several of the gauges on the dashboard malfunctioned as well. the head lights also began to flicker on and off independently. the vehicle was scheduled for diagnosis by an independent mechanic. the vin was not available. the failure and current mileage was 94,000.

Service brake lights stay on even after repaired , gas gauge goes crazy, tachometer doesn't work properly lights dim and flash, windshield has recall needs replaced , gas gauge quit working electrical system keeps failing. three recalls need to be replaced gmc admits fault to electrical problem, noted on website safercar.gov. want to know what dealer to bring my car to for repairs. i am a cancer patient with metastatic liver cancer i have thousand of dollars worth of medical, i can't keep paying for this car to be repaired when gmc owns up to the fact that these defects are their fault please tell me where to take this envoy for them to fix all these problems thank you *tr

Gasoline and oil pressure gauges stop working suddenly on a gmc envoy 2005. *tr

Gmc envoy shut down completely, with out warning, on the express way. auto repair diagnosed the cause as a "faulty" ignition. ignition was replaced. another complaint has been submitted for the same vehicle. two years later, the ignition switch was replaced, due to the same problem. *tr

I purchased this car used with approximately 24,000 miles in 2006. within a year of purchasing the car the cluster panel (gauges) stopped working. i took the car in to have it checked and was told that there was no recall and that it would cost approximately $700 to repair as the entire cluster panel would have to be remove and replaced. after talking with co-workers with the same vehicle experiencing the same problem; i later discovered that there had been a recall on this issue but you had to be the first owner of the vehicle. after having the cluster panel repaired, my gas gauge has stopped working and i am told that the entire tank has to be removed for repair and that there has not been a recall on this issue either. the window and door lock system on the front passenger door also is non-operational. this vehicle seems to have several minor electrical issues but i am most disturbed by the fact that after spending the money to have the cluster panel fixed my gas gauge is still not working properly.

Driving down the road i glanced to check my speedometer and saw it registered about 100 mph. i was only going about 40. the speedometer continued to climb and went below the highest registered number, which is 120, and that's where it now sits apparently for good. now i cannot tell my speed. the needle remains buried below 120 mph and does not move at all no matter what speed. *tr

The speedometer does not accurately record the speed while traveling for my 2005, gmc, envoy, slt model. it will indicate that i am traveling 20 mph or even 0 while on the highway and seems to increase my rpms while malfunctioning. this has caused several tickets as i can not personally track how fast/slow i am going while driving. this malfunction happens everyday. my oil gauge is also unable to read, it never moves and reads under the start of the meter (south) at all times, even when the vehicle is not started. *kb

Tl* the contact owns a 2005 gmc envoy. the contact stated while driving 78 mph the speedometer malfunctioned. the contact was unable to identify the speed of the vehicle which caused the contact to be cited by a police officer for speeding. the contact took vehicle to the dealer who stated the entire instrument cluster needed to be replaced. the instrument cluster was not replaced; however, he noticed numerous complaint regarding the speedometer for his year, make, and model and other gm vehicles. the failure mileage was 83,500.

Tl* the contact owns a 2005 gmc envoy. the contact stated that all of the gauges on the instrument panel began to display improper readings. the vehicle was taken to an independent mechanic where they were unable to diagnose the failure. the electrical system was reset. after a few weeks, the failure recurred. the vehicle was taken to an authorized dealer where they were unable to diagnose the failure. the manufacturer was made aware of the failure, but offered no assistance. the vehicle was not repaired. the failure mileage was 80,000.

Fuel gauge does not go above 1/8 tank. speedometer "sticks" usually at highway speed and when stopped does not return to zero then when vehicle is moving again the new speed is accumulating on "stuck" speed. sometimes speedometer "sticks" before reaching steady speed and when vehicle is stopped the reading is below zero in this scenario when the vehicle is moving again the "registered" speed is below actual speed. as i drive 1,000 miles a week, it is quite important to know how much fuel i have in my tank and of course how fast i am traveling. *kb

Immediately after filling gas tank before heading out of town on 4/22/11, fuel gauge registered empty. gauge has been acting erratically for the past week now. news report of nhtsa investigation made me aware that i could report this somewhere. oil pressure gauge has also been acting similarly erratic, starting a few days before fuel gauge began malfunctioning.

Fuel gauge stopped working in april 2011. showing empty even when full. took to dealer. mentioned i heard trailblazers also having issue. was told no recalls. had to pay for repairs. finally got notice can get portion of money back. it took months to get portion of money back. i had to keep following up even though they confirmed they had my paperwork. strike 1. had car in for 100,000 mile service, 9/24 - 9/25/2012, only to go back later because of car seeming to now have issues accelerating and car was not reset after oil change. told needed engine mounts. disputed this as seems strange car was running and sounding fine before 100k mile service. went back and forth with dealer.took car back to have master tech check and also because oil gauge stuck in one spot. went in 12/31/2012. was quoted repair price for oil sensor and now repair quote not only has engine mount replacement but also quoted trans mount replacement. really....refused repair. strike 2 and 3. btw, also needed new tires. i went to other dealer approximately 35 minutes away instead to get tires. on 3/5/2013, on way home notice speedometer showing about 90 miles even though gps says i'm only doing about 67. exited interstate, shut car off and turned back on. no change. got home, turned car off. speedometer stuck at 20 miles. morning of 3/6/13, started car, speedometer stuck at 7 miles. worked full day. got home and it was back to zero after turning car off. current odometer is approximately 106,102. these people need to own up to their mistakes and errors. we spend enough money with them. grass may not be greener with other make vehicle but customer service goes a long way!!!!! will take a lot to get me to buy another gmc or similar vehicle. *tr

As i was driving on the highway, i noticed that the speedometer was no longer measuring my speed, and was stuck on 70mph. the needle remained there, occasionally lowering itself in 5mph increments after restarting the engine, but then getting stuck again when driving. the needle generally buries itself at 120+ and does not readjust even by small increments anymore. my fuel gauge is also not working, reads on e regardless of how much fuel is in the tank, i wonder if these two problems are connected? *tr

Fuel gauge suddenly stopped working properly after fill up. moves from empty, to 1/2 full, to 1/4 full to empty, back to 1/4 full, back to empty. i can't determine how much gas in may tank. this could cause me to unexpectedly run out of gas while driving in traffic and cause an accident. this is apparently a very common problem in gmc envoy and chevrolet trailblazers. there is no warning in the owners manual or suggestion that the gauge and sensors be replaced. i understand that this is an expensive repair - between $600 and $900.

2005 gmc envoy xl has several issues with the instrument cluster. the battery and temperature gauges are reading off the scale past their maximum readings. it should also be noted that this vehicle also had issues with the fuel gauge sending unit and the engine thermostat. *tr

Tl*the contact owns a 2005 gmc envoy. the contact stated after refueling the fuel tank to the full capacity level, the fuel gauge would register an empty fuel tank. the inaccurate reading was consistent. the independent mechanic was notified of the faulty fuel tank and they advised that the vehicle be taken in for diagnosis. the manufacturer was made aware of the problem. the failure mileage was approximately 66,000. updated 06/17/11 *bf updated 06/30/11

Tachometer initially failed, now speedometer is also not working. have heard/seen multiple other people with this complaint on envoys and trailblazers. *tr

Fuel gauge does not work correctly. the reading on the fuel gauge does not reflect the amount of gas in the tank. gauge mostly reads empty even after filling up. sometimes it will show there is more gas than is actually in the tank.

The speedometer on my 2005 envoy is nolonger working...the problem seem to be common with envoy owners because we have an entire forum on it i have complained to gmc and no avail...i tried to trade the car but was offered way less than fair trade value because the speedometer is not working i hope i can get some help from someone..i can not afford to keep taking the car back and forth to the dealership. *tr

I was getting my tank filled with gas and the fuel gauge needle pegged out past full, then bounced down to empty. it did this three times then went back to full. since then it has continued to bounce around. the only way we knew if we had enough gas was to fill it and use the trip meter. the fuel gauge has ceased to move at all since april 2011. the check engine light has been on continuously as well since the incident. i love the vehicle but it is a major pain to keep track of the fuel when 3 people in the household rely on it. i looked online to see if there was a recall, only to learn this is a common complaint and nothing is being done about it. i priced a new cluster and it was over $500. needless to say we still have to keep track of the fuel with our trip meter. gm should step up to the plate and fix this issue. they had no problem taking a bailout. my family has been buying gm products for years, however, no one in my family will ever own another gm product if they can't do the right thing for their consumers, and do it now. not 5 years from now!! *tr

Tl* the contact owns a 2005 gmc envoy. the contact stated that the fuel level indicator failed and would provide inaccurate fuel levels. when refueling, the vehicle would indicate that the fuel tank was empty. the vehicle was not taken to the dealer for inspection or repairs. the contact stated that the vehicle was previously repaired for a failed instrument cluster. the vin was unavailable. the current mileage was approximately 65,000 and the failure mileage was unknown.

Fuel gauge is faulty. will not record exact capacity of fuel in tank. this lead to the vehicle running out of gas during operation. avoided a crash, just barely.

Blower motor resistor harness melted and started on fire. some burnt plastic behind dash and melted wires. had to replace blower motor resistor and harness, and will probably replace fan speed controller. not sure what cause is...... *tr

My fuel gauge stopped working 8 months ago, took to gmc dealer for service estimate. service manager said these fuel gauges always go out on envoys and the cost to repair was $578.00 (plus tax) - i choked and did not get repaired. 3 months later after trying to operate the vehicle without the fuel gauge - it became a nightmare to know if we had gas in the vehicle or not, i took it to an independent repair shop and they said "we see this fuel gauge problem all the time on the envoys"... they said the gmc parts were a rip-off and expensive, they would have to use gmc parts for the fuel gauge and they quoted $408.00 (plus tax) for the repair. the service manager for the repair shop said he could not understand why they have not had a recall on this since they have seen hundreds of gmc's with the same problem. he said we may want to wait on the repair to see if gm has a recall. on august 30, i received a written notification from gmc stating an issue with envoys and the fuel level sensor failure problem; however, gmc stated they would only cover 50% of the cost of repair. what a joke, 50% of a $600 repair bill for a problem they admit in writing is a scam to try and get as many people to pay for the repair ($300) before the gov't. mandates a recall. i called gmc and requested a 100% paid repair and they refused. i will be glad to forward the "fuel sensor failure" letter if you need. can you please help? the are several hundred thousand owners of gmc envoys that would be very appreciative - thank you in advance... *tr *kb

I own a 2005 gmc envoy the drivers side headlight continues to go out on a monthly basis. the last time it actually melted the connection and needs the whole lamp to be replaced. the gas gauge has stopped working and part of the interior dash lights. we replaced the fan switch a while back for the heater and the cd player started working again and the drivers side temperature light came back on for two days. *tr

Overheated and melted electrical connection at fan speed switch under dash! *ln

2005 envoy instrument cluster going bad. it will seem fine then the mph go way off and who knows if you can trust the other gauges while on the road. i've read that most gmc envoys have this problem and gmc is not acknowledging the known problem. dealership said it will cost me 575 dollars to have it replaced. *tr

Speedometer stuck at 60mph while traveling. didn't matter if stopped, accelerating, decelerating, or turning vehicle off. turning off the car and restarting it seemed to cause the speedometer to decrease, some, finally getting it to register 20mph. upon restarting the vehicle in the morning the speedometer still registered 20 mph and upon acceleration the speedometer fluctuated finally settling at 80mph. we were unable to tell how fast we really are traveling because the speedometer is wacko. stopping and turning off the vehicle does not help. the speedometer does not reset to zero it is now stuck at 80mph. our local gm dealer advised that no recall has been issued but an extended warranty to 75,000 miles was offered on the vehicle for this particular problem. our vehicle is over the mileage for the warranty. gm is aware there is a problem with wacko speedometers hence the warranty extension. one would assume being able to monitor ones speed in a vehicle is an important safety concern. *tr

Speedometer failure ignition switch failure (multiple times)

As i was driving the vehicle, the dashboard lit up and the odometer and all the information systems went to zero. this has happened often over the years. i took it to two gmc car dealerships and the first one said it was the kill switch installed by a buy here pay here dealership. the kill switch was removed and the dashboard continued to flicker. then the car would not start, i took it to another dealership and was told they couldn't find anything. the car began to tribble, again i took it in and was told that i needed to clean the fuel injection system. i did that and bought a battery but that didn't help. the tow driver said it seems to be something electrical but the car dealership can't find a solution. have you had this complaint before? not to confuse the complaint, i have several issues. 1. dashboard lights up and the information panels shut down (all are at zero) 2. the odometer goes to zero and the instrument cluster is black 3. tribble underneath while driving feels as if the car is shaking thank you for any assistance you can provide. *tr

Tl*the contact owns 2005 gmc envoy. she stated that the fuel gauge and speedometers were faulty. the fuel gauge displayed empty and the speedometer displayed that the speed 100 mph while she was only driving 40 mph. the vehicle was not taken to the dealer. the manufacturer was contacted and stated that the failure was not a recall; therefore, they were not paying for the repairs. the vehicle was not repaired. the failure and current mileages were 103,000.

Tl*the contact owns a 2005 gmc envoy. the contact stated that the speedometer indicated an inaccurate speed. when driving at 20 mph, the speedometer may show a reading of 80 mph. the vehicle had not been inspected or repaired. the contact spoke with the manufacturer who offered no assistance. the current mileage was approximately 81,100. the failure mileage was approximately 81,000.

Tl*the contact owns a 2005 gmc envoy. the contact stated that the speedometer did not register the correct speed while driving. while driving 30 mph the gauge was registering 100 mph. the vehicle was not taken to the dealer. the manufacturer was not notified. the failure mileage was 98,795.

The fuel gage stopped working and the low fuel light stays on. the check engine light keeps going on and off the port to check engine code does not work. the inside courtesy lights stopped working one back up light will not work the left brake light gets no power and won't work. only 3 of the 5 speed settings on the fan work. gmc dealer says they can do nothing, and that they do not have other complaints on these problems. however i am able to find thousands of the same complaints online in various consumer sites. gmc won't even return my calls. *tr

Tl*the contact owns a 2005 gmc envoy xl. while driving 45 mph, the speedometer displayed that the vehicle was traveling 85 mph. the vehicle was taken to a local repair shop where the instrument cluster was replaced. the contact called the manufacturer and dealer who offered no assistance. the vehicle had not been repaired. the failure mileage was approximately 73,000.