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really awful
Crashes / Fires:
7 / 7
Injuries / Deaths:
4 / 0
Average Mileage:
69,957 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Chevrolet Impala electrical problems

electrical problem

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2004 Chevrolet Impala Owner Comments (Page 13 of 21)

« Read the previous 20 complaints

problem #167

Aug 012009


  • 50,000 miles


Low beams are no longer operable on the car. Seems to be a running theme with the Chevy Impala cars. 2004 Chevy Impala I have already spent more in repairs than to purchase the vehicle. Transmission, front drive line and now my passlock locks me out of the car- car won't turn on for sometimes 3 days. Lights quit working about one month ago I live in Hawaii and can't get my car to pass safety inspection to get my sticker so I now have a car with 60,000 miles that can't be driven on the road, can't be sold. Impala's are money sucking dangerous lemon vehicles. I can't afford to fix it can't sell it so now what the hell am I supposed to do with this car"??????????"

- Pahoa, HI, USA

problem #166

Jun 152008

Impala 6-cyl

  • 75,000 miles
Speedometer and now the temp gauge faulty.. known problem with this 2004 Chevy Impala... GM fixed same issue in their trucks, but refuses to fix in this and other model cars...

- Solsberry, IN, USA

problem #165

Aug 282010


  • 90,532 miles
I was driving my 2004 Impala at night and lights went out. One side had blinked before but came right back on. Last night I had to abandon my car. When I picked it up this morning the lights turn on again. Totally unsafe and unreliable. I checked online for a possible cause and found that this is an extreme problem with Impala, Chevy should fix this before someone gets killed!

- Dallas, IA, USA

problem #164

Jun 212010


  • 123,077 miles


2004 Chevy Impala the manufacturer installed passlock system continuously locks the car from being cranked. Everything will operate properly except being able to crank the vehicle. This happens about every 20 times you crank the vehicle. You have to wait at least 10 minutes before the vehicle will crank. If you take the key out of the ignition during that time it is likely that the system will not reset itself, thus starting the process over again. I contacted 2 GM dealerships who said they could not fix it. Had another mechanic look into it and he tried replacing the ignition but that didn't work either. That cost nearly $800. Now I sit in the blazing sun or freezing cold or rain and wait for the car to finally start. GM needs to fix this for all owners at no charge. Sadly for them, it is not just Impala that are having this trouble; it is across the entire product line of GM models.

- Corrigan, TX, USA

problem #163

May 182010


  • 68,750 miles
Driving on highway back from California thru Nevada speedometer all of a sudden stopped working and slowly dropped to 0 as done it at list 5 more time but only when driving on highways.

- West Jordan, UT, USA

problem #162

Aug 252010


  • 63,258 miles
Ignition sporadically fails to start vehicle. All electrical systems will turn on, but ignition will not turn over starter. Left with a completely unreliable car that has left me stranded on multiple occasions; only to go back to the car an hour later and have it start! told this is an electrical problem that GM has had on multiple makes of cars throughout the past. It is widely known to be a problem, yet no recall has been issued.

- Williston, ND, USA

problem #161

May 052009


  • 45,000 miles


For over a year, I have had problems with the electronic system for my 2004 Chevy Impala. For several months, the security light in my driver"S panel intermittently displayed when I placed the key in the ignition and my car failed to start. The car would eventually start after 15 ? 30 minutes. At first, this occurred sporadically but then became a more common occurrence. When I took my Impala to a local auto-repair shop, they were unable to diagnosis the exact problem. Their equipment reported a number of electronic errors but they were not able to pinpoint the precise cause of the car"S issues. Instead, they offered to reset the electronic codes and advised me to bring my car back at the first sign of any electronic issues. My Impala operated for the next few months without issue. However, a new electronic issue emerged with my vehicle. I noticed my car began to accelerate automatically. For example, if I was at a complete stop, the car began to accelerate at a moderate amount of speed as soon as I released the brake. Like the previous issue, this problem first occurred intermittently and soon progressed to a regular occurrence. When I took the Impala back to the auto-repair shop, the mechanics stated the automatic acceleration was due to a faulty ignition sensor. After I had the faulty ignition sensor replaced, the Impala once again ran without issue for a few months. However, the solution proved temporary as the previous automatic acceleration issue returned. I once again took my car to the auto-repair shop and once again, the mechanics blamed a faulty ignition sensor. At this point, I had the mechanics replace the ignition sensor. Since that point, my car has operated without issue until today. The security light in my drivers panel now continually displays whenever I drive. I feel as if I am at the end of my rope. I have spent a considerable amount of money to resolve this issue to no avail.

- Wichita, KS, USA

problem #160

Nov 182007


  • 50,000 miles
I have a 2004 Chevy Impala that has a crazy dash cluster!! I know that I am not the only one!! GM has recalled other types of vehicles with the same type of cluster problem, but won't recall the Impala that are having the same dangerous issue!! I have young two children that are always with me and when I'm driving ; not knowing how fast I am going, not knowing my temperature, or how many rpms my car is pushing! very serious when I'm not the only vehicle on the road. I hope GM addresses this problem for the safety of there customers! hopefully the government can push them to do something!!! we people with this issue will appreciate it greatly!!! thank you

- Indianapolis, IN, USA

problem #159

Jul 112008


  • 60,000 miles
For no apparent reason, the temperature gauge and speedometer have completely stopped working on my 2004 Chevy Impala. It is a safety concern that I do not know what speed I am driving or the temperature of my vehicle. I have not repaired or replaced the instrument panel because I can not afford it.

- Fresno, CA, USA

problem #158

Sep 152007


  • 80,000 miles
I have read on several web sites that thousands of people were having trouble with the passlock system on their GM vehicles and I am one of those thousands of people. I am having trouble with using my own key to start my own car, but it will not start for 10-15 minutes.

- Lemon Grove, CA, USA

problem #157

Jul 092010

Impala 6-cyl

  • 52,560 miles


Passlock system does not allow my car to start, I have been online and seen hundreds if not a thousand or so complaint's with the same problem.this car is useless if I cannot depend on it to start when I need it to, especially in a emergency situation since I live in a rural area of upstate New York that has no cell phone service if GM knows there are so many complaint's about a specific system they place in one of there vehicles, and all are identical. Then man -up institute a recall on the passlock system and restore the confidence in many of there customer's. I have a 2004 Chevy Impala 3.4 ltr.

- Horseheads, NY, USA

problem #156

Jul 202009


  • 75,000 miles
The security light started coming on, and eventually the car began not starting. It started happening every once in a while, and now happens a few times a week. The lights, radio, and accessories work, but the car will not start. I have to wait 10 minutes to try again. This began about a month after my warranty expired. I took it to a shop, where they "located high resistance in ign cylinder connector to body control module removed and cleaned connectors and reprogrammed as needed". next day, security light went on, morning after that, car would not start! was told at the shop "if security light comes back on, will need to replace tumbler and new key and reprogram $690+ tax". I have a 2-year old daughter that I care for all day, and I work nights- leaving work at 1:30 a.M. I cannot have this happening. This seems to be a widespread problem among GM cars from 2000-2009, and I cannot find a true remedy for it.

- Tinley Park, IL, USA

problem #155

Sep 092007


  • 74,000 miles
Approx. 2007 - speedometer began fluctuating intermittently every few weeks. It corrected for a few weeks, then the problem would return. The frequency of the problem became worse in 2008. In 2009 it would fluctuate wildly, then "peg" to the maximum for extended periods(several weeks). Finally, it "pegged" to the maximum and has not returned. Inquiries result in estimates exceeding $500 to repair.

- Casco, ME, USA

problem #154

Mar 062009


  • miles
04 Impala ls speedometer stopped working around 30000 miles all gauges fail to work never know how fast I am going could be a potentially dangerous situation. Speedometer gets stuck at various places does not move while driving. As well as the temp gauge have not gotten it fixed as of yet. Why is there not a recall?

- Clermont, FL, USA

problem #153

Apr 172009


  • 90,000 miles
2004 Chevy Impala. I go out to start the car and it will not start. I wait 15-20 minutes and it starts. The transmission also shifts hard. The speedometer says I am going 10 when I am going faster than that or it may say 100 when it is parked. Please, recall this.

- Van Buren, AR, USA

problem #152

Feb 162009


  • 52,189 miles
1. car will not start 2. unpredictable, car will not start un less you leave the key in the on position for 10 mis. 3. don't know how to fix. 100's of complaints online about the passlock system causing the issue.

- Tampa, FL, USA

problem #151

May 312010


  • 61,000 miles
My 2004 Chevy Impala speedometer has stopped working. The temperature gauge does not work at all and the fuel gauge works some time. This car is in otherwise excellent condition. Knowing your speed is certainly a safety issue. The dealer says getting it fixed is not a problem just give them hundreds of dollars.

- Canal Winchester, OH, USA

problem #150

Apr 072010


  • 73,462 miles
2004 chevorlet Impala temp gauge ceased to work and stuck in it's highest position. Tach gauge quit also. Replaced instrument cluster with rebuilt unit.

- Oreland, PA, USA

problem #149

Dec 272009


  • 58,000 miles
Now at 117,000 kms. Or past my five year warranty. Since 88,000kms. Have complained several times about temp gauge very out of whack on highway trips, lead me to believe severely overheated, but no message from car, just gauge going almost 90 degrees past "danger point " of gauge. In last two years temp gauge replaced three times. Obviously not the problem. Returns to normal function in city or short haul driving. Stop frequently, and under hood check shows no signs of overheating. Conclusion- electrical, sensor, problem and dealer keeps coming up with costly new equipment fixes which do not work. Now they want to blame a water pump leak and gaskets, although reservoir carefully watched by me. No leaks there. Have never had to add fluid, although I keep it always in car-that is the dexcool-water mix. Never down lower than recommended, and the dealer wants to give me a new water pump and take 1000-1200 out of my pocket. They have never mentioned the temp sensor, or any other fix. Travel on mountain highways 3 times per year, gauge now gone way over the top 6-8 times. Always stop. No sign ever of hose, radiator, water, lowered reservoir, or computer messages as per manual. Have read of numerous similar problems of this make and model, the 04 Chevy Impala ls, always gauges. In my case I will not approve another temp gauge "fix" and now speedometer is acting up as well, just like other drivers reported.

- Vancouver, Canada, 00, USA

problem #148

Apr 292010

Impala 6-cyl

  • 80,059 miles
2004 Chevy Impala will not start. Radio and windows will function, but car will not start....this will last about 10 to 15 minutes. This is the second time this has happened. This occurs about every 2 weeks.

- Ponca City, OK, USA

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