Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
10 / 0
Injuries / Deaths:
5 / 0
Average Mileage:
34,860 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 Honda Civic engine problems

engine problem

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2004 Honda Civic Owner Comments

problem #20

Aug 242014


  • 110,000 miles


Manual transmission Honda Civic LX 2004 reaches rattling/grinding noise when reached 2000 RPM or so. The noise is loud and downshifting becomes very rough. The car slows down when not pressing accelerator. Even when in neutral the car sounds with a rattle. Only when the clutch is pressed does the sound minimize. Car feels vulnerable when driven like this. It's mainly due to the noise, and feeling of the car. The input shaft bearing is the problem. Many reports were blogged and diagnosed. The car still runs. Unfortunately it's not clear for how long.

- Ithaca, NY, USA

problem #19

Jan 282014


  • 59,000 miles
My car accelerated while in parking lot and went inside a building. I was not hurt. My car was damaged and the building and another car I hit sustained a significant damage.

- Washington, DC, USA

problem #18

Sep 252012


  • 95,000 miles
Today, I was driving my wife S 2004 Honda Civic in the highway at about 60 miles per hr when all of the sudden the car started accelerating as if it was in cruise control.. I took my foot off the gas pedal and pressed the brake with little results. The brakes felt so hard as if they were locked. Then I decided to change gears to D2 and together with the emergency brake I was able to slow down the car a bit. After that, I pulled over the brake down lane at about 10 miles per hour but I still could not stop the car. With the help of the emergency brake I was able to stop the car however, the engine was still running as if it was accelerating. This is when I decided to put it on neutral and follow by a loud noise the engine finally stop running....thank god no one was hurt....

- Lowell, MA, USA

problem #17

Mar 182011


  • 103,000 miles


The contact owns a 2004 Honda Civic. While driving approximately 20 mph the power steering and the brake pedal locked simultaneously. The contact was unable to stop the vehicle and crashed into the rear end of the vehicle directly in front of her. There were no reported injuries. The vehicle was towed to the towing facility. The vehicle was not repaired. The manufacturer was not contacted. The VIN was not available. The approximate failure mileage was 103,000.

- Marblehead, MA, USA

problem #16

Jan 262011


  • 32,139 miles
The contact owns a 2004 Honda Civic. The contact was attempting to park when the vehicle exhibited an loud roar, then the vehicle accelerated independently. The contact applied the brakes repeatedly but to no avail. The contact was headed toward a tree and abruptly turned the steering wheel to avoid a crash. The vehicle then came to a complete stop. There was minor body damage to the vehicle. A police report was filed and the vehicle was towed to an authorized dealer where they were unable to duplicate the failure. The contact stated that after the failure occurred, the vehicle would exhibit a loud thumping noise whenever in operation. The contact stated that the vehicle was unsafe to drive and had concerns of the unintended acceleration defect. The vehicle was not repaired. The failure mileage was approximately 32,139.

- Deerfield Beach , FL, USA

problem #15

Sep 182010


  • 52,502 miles
While driving my 2004 Honda Civic just off from work at 8:30 pm, it started to accelerate without reducing the RPM's. I removed my foot from the pedal and continue to accelerate. Got on the freeway, and kept accelerating without control, at 50 mph, I tried to brake with no response, so I shut down the key and pulled over. I parked in P position. I turned on the car again very quick and RPM's where very high. Shut it down again. Called my insurance, they towed my car to the Honda dealer, and the towing mechanic noticed that the spring/cap was up from the throttle box. He just touched it and went back to decelerating position. We turned on the car, and found no issues. Next day the Honda dealer drove the car with no issues. I appeared that there was no root cause for this problem according with them. Ifor my own safety I asked them to replace the part, but it will be under my budget thinking that may happen again. The worst part of it is that the design on this part has not changed according with the repair man, why" am I the first one? are there any other cases with the same problem? do I have to pay for a safety issue" I was lucky that happened with no traffic in a good weather condition. I cannot imagine this happened to my wife with the kids under heavy traffic condition. I was able to react and think properly as I always do when I drive. I need help and answers. Thanks,

- Newark, OH, USA

problem #14

Jun 182010


  • 69,000 miles


The contact owns a 2004 Honda Civic. The contact stated he was attempting to park the vehicle at speeds of 5 mph, applying minimal pressure to the accelerator pedal. The vehicle abnormally accelerated over a curb and into a nearby field. The dealer advised the contact that the failure was due to driver error and the accelerator pedal was controlled by a cable and not electronic. The contact was concerned with the recurrence of the failure and the possibility of a crash. The failure mileage was 69,000 and the current was unknown.

- Westerville, OH, USA

problem #13

Aug 052008


  • 70,000 miles
When accelerating transmission shutters was fixed by dealer about 12 mo ago and has started again. They replaced clutch plate. Also no permanent fix for catalytic converter. Now after changing the components for the cruise control it still cuts off with no warning. Each of these items have started around 70,000 miles except for cruise control which started within the past 3-4 mo.

- Aldie, VA, USA

problem #12

Nov 112009


  • 92,500 miles
I drive a 2004 manual Honda Civic. I was driving down the freeway with cruise control set at about 70 mph. Suddenly, I felt my car speed up substantially and when I look at the speedometer I was traveling over 85 mph. I immediately canceled cruise control but my car continued to gain speed. I hit my brakes which caused my car to shudder violently. When my foot wasn't on the brakes, my car continued to quickly gain speed. I attempted to move the car into neutral and coast to a stop, but when I put the clutch in my RPM's rose to about 8,000 and didn't go down even when the car was in neutral. The car also continued to increase in speed even when it was in neutral. I moved back into 5th gear and continued down the highway going between 85-95 mph. I was able to maintain that speed only with my foot on the brakes. I placed a call to 911 and informed them that I couldn't stop my car. The 911 dispatcher contacted highway patrol who set out to catch me. Once a highway patrolman was behind me, I was instructed to shift into neutral, even though the RPM's would shoot up, and coast to a stop. The car shook almost uncontrollably while I was slowing down and even at a complete stop in neutral on the side of the road the RPM's were at about 8,000. We had the car towed to the Honda dealership where they turned the car on and witnessed the RPM's immediately shoot up to 8,000 again. After looking under the hood they could not determine a cause for the incident. When they turned the car on again it started and ran normally. No significant damage to the car was done, and luckily the freeway was uncrowded so an accident was avoided.

- San Luis Obispo, CA, USA

problem #11

Apr 022008

Civic 4-cyl

  • Automatic transmission
  • miles
On occasions, when stopped for red light or stop sign, vehicle will race forward causing me to shut off the vehicle to stop it as it moves forward even while I have my foot on the brake.

- Mahopac, NY, USA

problem #10

Jul 062007

(reported on)

Civic 4-cyl

  • Automatic transmission
  • miles


2004 Honda Civic. Consumer states that the vehicle suddenly accelerated up to 80 mph in 10 seconds the brakes failed.

- Union , NJ, USA

problem #9

Apr 302007

Civic 4-cyl

  • 3,100 miles
2004 Honda Civic customer states that her car was totaled due to brake failure* the consumer stated that the car suddenly accelerated and did not cease to stop when the brakes applied, therefore crashing into a metal barrier at alarming speed.

- Union, NJ, USA

problem #8

Jun 012006


  • miles
Consumer's 2004 Civic pulled left. Accelerator would not engage when depressed and the vehicle would make a sudden jump. The vehicle was taken to the dealer but the were unable to determine the cause of the problem. The consumer also experienced problems with the vehicle's stereo and gear system. The dealer repair the loose wire but the stereo's sound is affected when the vehicle hits bumps in the road. The consumer was told that the gear shift was replaced. The rubber seal on the windshield popped up. The paint on the back fender started to flake. The brake began to make noise even after the vehicle was parked.

- Euless, TX, USA

problem #7

Jul 202005


  • miles
My car Honda hybrid 2004 was lurching a little bit on inclines, then the steering was acting weird. Anyway, I took it into the shop for my 5,000 mile check up and the guy there at Honda dealer said everything was fine. Well, I was driving up the ca I 5, stopped over and pulled in, in front of a 7/11 and the car slowed down and I pulled up to the cement stop, with foot on brake. All of a sudden the car lurched at a high speed three times, and I was trying to brake it to make it quit and it wouldn't quit or brake. My car bashed in the window of the 7/11 and my foot was not on the was a horrible experience. However, Honda dealer is saying they cannot find anything wrong with it. I was just on the forum and there are lurching problems. I am sick over this whole thing.

- Coronado, CA, USA

problem #6

Jul 272004

Civic 4-cyl

  • Automatic transmission
  • miles
Since I bought this car all I have had were problems. The 1st problem was that the odometer was going more miles than I was driving. Sometimes it was even right on the dot. I tested it against my 00 Civic and 3 other cars. My Civic was consistently off on trips over 20 miles. The first dealer could not duplicate it just driving around the block. I took it there 4 times within the first couple of months. I also had to get an oil change every 3.5 weeks because I had gone 5000 miles supposedly. The last time it was at that dealer there was a new service manager who's excuse for what was wrong with it was that I had somehow switched it from mi to km and that I needed to get out the manual and figure out how to fix it. During this time I had written Honda customer service and they had all kinds of different ideas what was wrong with it and how it was my fault, not an actual problem. The next week I took it to another dealer who right away found there was a problem. When they called Honda to figure out what to do since they had never seen this they were told not to do anything. They advised I come back and meet with the Honda rep. I did and they tried running tests, checking tire pressure and everything came up ok. Someone had mentioned it could be an electrical problem. As time went on other things stopped working right in the car. The interior lights buzzed when they were on. The car has had trouble starting, temperature did not affect it. Turning the heat and A/C knob will change the station on the radio. The cigarette lighter will stop working for 5 minutes then come back on. More recently I've been having transmission problems(auto). The car won't shift, revs high, the jolts and w/cruise set it just accelerates for no reason. I will not buy another Honda.

- Ocean City, MD, USA

problem #5

Jan 102005


  • Automatic transmission
  • 2,500 miles
The speedometer locked at 40 mph, it will not move to let the consumer know what speed she was going. The manufacturer offered no assistance at this time.

- Chandler, AZ, USA

problem #4

Nov 112004

Civic 4-cyl

  • Automatic transmission
  • 5,460 miles
I was driving in a parking lot at a low speed, stopped to turn in parking space with foot on brake, car started to accelerate, pushed on brakes they would not work and car jumped curb, and hit post office building. Car died immediately, but when turned car back on everything seemed normal.

- Oklahoma City, OK, USA

problem #3

Sep 132004

(reported on)


  • miles
Run a way Honda 2004 hybrid cvt. While the vehicle's engine was in economy mode the consumer took his foot of the brake to maneuver a turn when the vehicle suddenly accelerated. As a result the, the consumer slid on a sandy parking lot which knocked off one of the rear view mirrors and caused damage to the front end of the vehicle. The mechanic was unable to duplicate the problem. On some occasions, when the vehicle was in motion, the engine would die, there would be no RPM, the consumers foot would be on the brakes, the engine would start up and the RPM would read 1200.

- Tom River, NJ, USA

problem #2

Jul 082004


  • Automatic transmission
  • miles
When driving at low speeds vehicle surged forward. The vehicle suddenly accelerated, brakes failed and vehicle hit brick wall head on. Upon impact, both frontal air bags did not deploy. Consumer had the vehicle towed to the dealer for inspection.

- Phoenix, AZ, USA

problem #1

Mar 202004

Civic 4-cyl

  • Manual transmission
  • 3,000 miles
While driving 40 mph speed control engaged. The consumer made attempt to disengage the system and the vehicle accelerated. This caused the driver to lose control and run into a ditch. Upon impact, the front air bags deployed, but not the side air bags. The consumer sustained a broken ankle, fractured hip joint, fractured pelvis and a collapsed left lung.

- Readfield, ME, USA

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