Software problems of the 2005 Toyota Prius

Seven problems related to software have been reported for the 2005 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Prius based on all problems reported for the 2005 Prius.

1 Software problem

Failure Date: 01/25/2010

My 2005 Toyota Prius has a problem with the headlights going out,it started in December 2009 and as of today they go out about every 5-10 minutes . . . I called Toyotas customer service and they implied there was no wide spread problem with the headlights on the 2005 Prius . . . I have an associated press article in front of me that says (the Prius is a highly computerized car and has had many problems in the past . . . In 2005 Toyota repaired 75,000 Prius that had a software problem that caused the car to stall and the Prius also has had problems with the headlights going out since 2001 ) is there a fix that they would not tell me about . . . Thanks.

2 Software problem

Failure Date: 02/15/2007

We have two 2005 Toyota Priuses which have exhibited identical stalling and shifting problems. The hybrid system will stall or not operate and will not allow us to shift the vehicle into gear periodically. One Toyota dealer says we need to replace the transaxle, and another was not sure and said there best "guess" was to refresh the ecu and hybrid control module software , however after doing extensive research online believe it to be a combination of a software glitch attributed to a leak in waterproofing a gasket near an ecu. The problem was brought to the dealers attention almost a year ago while the vehicles were still under warranty. All they did was simply "flash" or refresh the memory and did not actually resolve the problem. The Prius' hybrid-related components, including the hybrid control module are covered for 8 years/100,000 miles. We also mentioned to the dealer the unusual and excessive tire wear on both vehicles, some of the tires had no tread and were already bald after only 12,000 miles. I am wondering if this could be related to the steering or traction control issues prevalent with this model.

3 Software problem

Failure Date: 11/03/2005

After Toyota's recalling 75,000 Prius in u. S. , I took my 2005 Prius into torrance Toyota(310-325-75000) to have the software"glitch"repaired. Michael gallagher(service advisor) told me there is additional glitches and now my car is inoperable and he has been ask.

4 Software problem

Failure Date: 06/23/2005

A. How long and at what speed was the consumer driving before the vehicle lost power? approximately 20 minutes: 35 mph. B. Was the consumer accelerating, decelerating, or driving at a steady- state when the vehicle lost power? accelerating c. After the vehicle lost power, was the driver able to continue driving the vehicle? if so, how long and at what speed? no d. Did any warning lights appear before and/or after the incident occurred? yes if so, describe the lights that were lit. Engine indicator and exclamation mark e. Did the vehicle eventually stall and come to a stop? how long did this occur after the warning lights were lit? no; immediatley f. Was the driver able to restart the vehicle right after it stalled? if so, how long did it take (# of attempts and/ or time ã‚ 3-4 times or 2-3 minutes)? no g. Was the driver able to restart the vehicle after letting it sit awhile? if so, how long was this after the vehicle stalled? no h. Was the vehicle towed? no I. What did the dealer say was wrong with the vehicle? the wiring would pulled from the vehicle j. Did the dealer reprogram the ecu (electronic control unit) or any software? donã‚t know k. Has the vehicle had special service campaigns 40a or 40 d performed on it prior to the incident? (note: the consumer would have received a letter in the mail notifying them to bring his or her vehicle in for repair. Campaign 40a or 40d addressed software issues with the Prius hybrid vehicle electronic control unit. ) no l. Has the vehicle had any problems since the repair?contact states he has experienced power failure in his 2005 Toyota Prius. The vehicle has not been repaired yet.

5 Software problem

Failure Date: 04/19/2005

I was driving my 2005 Toyota Prius at about 45 mph when the vehicle went dead. The battery charge indicator went to zero, the engine warning light came on, the master warning light came on, the vehicle stability control warning light came on. I pulled to the side of the road. At first the vehicle would not shut off. After several attempts the vehicle shut down. I restarted the vehicle, and with the engine service light on was able to get it first home, then to a Toyota dealer. The dealer said the vehicle needed an "upgrade" to its software and reprogrammed the ecu. ( at no charge to me as the vehicle is still under warranty). If an upgrade was available and required, I feel I should have been notified so that I and my wife were not put at risk.

6 Software problem

Failure Date: 03/29/2005

While driving my 2005 Toyota Prius at about 40 mphin left lane on route 158 in kitty hawk, nc, the accelaratorl quit working, but neither engine quit. Was able to let car go into shopping center lot (this was dangerous situation and my 8 year old grandaughter was in the car). Electirc engine provided the power with out accelerator assistance. Had car towed to elixabeth city Toyota dealer. Mechanic took two days to find a wasy to get accelerator working. He said thatin conjuntion with Toyota corporate engineersover telephone he ran tests and many errors showed up not related to the accelerator. The problems sounded to me like it was in the computer's system. Mechanic was eventually told to shut down all computers and re-boot them one by one. I asked him about the cause and he said none was discovered. Car has not repeasted problem, but I remain concerned. Related this problem to my purcahse dealer (lustine Toyota in woodbridge va) assistant service manager. I was told they could not do anything unlesss the problem occurred again - this is not reassuring. And I aapeared to know more about the problem that they did or was willing to admit. I even gave them a copy of an artilce (the japan times - 5/16/2005) that I found on the web referred to a wall street journal article about the problem. It said tha ttoyota corp had sent letters to Prius owners telling them to take thier cars in for a software upgrade computer. No letter wa sever sent to me! and dealer did not react to letter.

7 Software problem

Failure Date: 01/11/2005

1) I received a notice from Toyota about a navigation system software update. The car was brought to the dealership where the update was performed. 2)after leaving the dealership, in less than 2 miles, the car engine stalled as I was depressing the accelerator. I pulled to the side of the road. 3) my car has the smartkey system, so at the time, the key was not inserted. After inserting the key, I was able to restart the car. This occurred again afew days later, and the car was restarted only after inserting the kay.




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