hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
83,029 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.

2003 Toyota Tacoma electrical problems

electrical problem

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2003 Toyota Tacoma Owner Comments

problem #7

Nov 112015


  • 100,000 miles


The headlight harness plug burned up I had to replace it headlights burn out with in months as do tail lights I have replaced both bulbs three times in the last six months.and replaced tail light bulbs twice in six months

- Mauldin, SC, USA

problem #6

Dec 022013


  • 120,000 miles
While driving down the highway, I moved into the left lane to pass another car. When I stepped on the accelerator the nose pitched forward and the engine felt like it was not getting any gas. I was able to press the accelerator nearly all the way to the floor to continue getting power to the engine, but the first 2/3 of the pedal stroke were completely unresponsive. A check engine light came on and it was diagnosed as a throttle body issue. After doing some research, this seems to be a well documented issue on a number of Tacoma forums. The cost to replace will be $1400 dollars new or $400 dollars used. I am skeptical to purchase a refurbished part due to the known issue with it. This has happened a total of 6 times in 3.5 years of owning the vehicle and seems to occur in colder weather. Typically after pulling over and shutting the car off for 30 seconds, the issue is gone. It will undoubtedly happen again, but you never know when.

- Decatur, GA, USA

problem #5

Jul 152014


  • 110,700 miles
The contact owns a 2003 Toyota Tacoma. While driving various speeds, a chiming noise activated in the vehicle. The failure occurred several times. The vehicle was taken to a dealer, but was not diagnosed or repaired. The manufacturer was notified. The approximate failure mileage was 110,700.

- Hayward, CA, USA

problem #4

Jun 182013

Tacoma 6-cyl

  • 80,000 miles


I'm filing the compliant to acknowledge the fact that these older fly by wire throttle bodies have a faulty tps that is only replaceable as a whole new throttle body. The cost on them is between 700 to 1000 dollars. My Tacoma do have a faulty tps on it. I'm waiting to save up enough money to replace the throttle body however, there have been numerous times that upon pulling out into traffic it has acted up. When this happens you get a very bad hesitation or lack of acceleration to the point of endangering myself and other drivers. The hesitation has lasted as long as 3 to 5 seconds before the throttle will finally respond. The condition will only happen during hot summer months. Thank you for your time and would like the see this looked into and or resolved. I will be able to replace the throttle body because I work at a dealership and get the parts at cost. However some people may not be able to save up the cost for the new part. Thanks again sincerely!!

- Jacksonville , FL, USA

problem #3

Feb 202009


  • 99,000 miles
Instrument panel lights sequential failure. There are two lights for the instrument panel. One failed and then 1 month later, the other light failed.

- Ijamsville, MD, USA

problem #2

Dec 012006

Tacoma 4WD 4-cyl

  • Manual transmission
  • 42,500 miles
I purchased my 2003 Toyota Tacoma 4X4 in may of 2003 in which as of this date of 12.29.06 my truck has 43K miles on it and is in excellant condition. Over the course of the past 6 months I have had to spend thousands of dollars on this truck and still can not drive it. I have had to put a brandnew crankshaft kit in my truck due to the keyway on the crankshaft shearing off resulting in my truck shutting down. After inspecting my truck by a certified mechanic the key was not there after it had sheared off in which parts had moved forward and ground into the metal. After the crankshaft replacement I continued to have more and more problems with the truck. I have replaced the crankshaft, harmonic balancer, new fan, oil pump because the truck will not hold oil pressure, mass air flow sensor, crank sensor, cam sensor's, re-setting of the computer and labor cost. I picked my truck up on a Friday after it came back from huntersville, nc at lake norman Toyota in which the truck was hooked up and was given a clean bill of health but, the truck left me stranded once again on Sunday night at 7:00 pm in which I had to have a roll back pick it up for the fourth time. The oil light came on when the engine would idle less than 1K rpms in which it then finally had to be shut off as soon as I heard this due to the sounds of metal rubbing metal. The truck is now located at leatherman auto located in newton, nc (828.465.5269) in which the owner, scott has not made any repairs to this truck yet. The check engine light has came on in all four instances as well as the oil light and other lights and I then loose control of my truck due to it shutting down. I was on I-40 traveling at 65-70 mph when my truck started jerking again and then I lost my power steering again and had to fight with the truck to get it off the road. The truck is stalling out in which I am in fear of either myself or one of my family members becoming injured or possibly killed because of this instance.

- Claremont, NC, USA

problem #1

Jul 222005

Tacoma 4WD 6-cyl

  • Automatic transmission
  • 29,000 miles
While the vehicle was in the process of being driven it began to develop electrical problems. Ultimately the electrical problem developed into a fire that damaged components under the hood as well as causing structural damages. At the present time the vehicle remains in its post fire condition awaiting repair. The vehicle involved is a 2003 Toyota Tacoma double cab, it was purchased new and was and is under full factory warranties. As of yet nothing has been done by Toyota or by the local dealership to address the problem and to repair the vehicle. Instead, both Toyota and their local dealership have repeatedly instructed me to absorb the problem myself by turning it into my insurance company. This then exposes me to costs outside of the warranty, makes the insurance carrier responsible for a defect that should be coverable by warranty and does nothing to assure the cause of the fire was forever corrected to prevent a re-occurrence to either myself or to others who may suffer the same problems.

- Johnston, IA, USA

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