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.
When the battery cooling fan is running, the car is slow to accelerate or will not accelerate at all. The incident has happened multiple times over the past year when the temperatures are above 90. If at a complete stop, the car will not accelerate, it will only jerk forward. The car has to be turned off and restarted to be able to accelerate. If braking or reducing speed, the car will be sluggish, and I have not been able to get the speed over 40 mph. I have taken it to the dealership, but they said they could not recreate the issue, though I do not believe that they followed the directions I gave them to recreate the problem. No warning lights appear when the issue occurs, so they did not have an answer. The first time the incident occurred, I had just had the scheduled maintenance completed two days earlier and they did not find anything in the inspection that needed to be repaired. The first time the incident occurred, I was at a stop light trying to make a right turn. The incident has occurred twice when trying to pull on to the highway and accelerate up to speed.
Vehicle stalls for 5-10 seconds when stopped at a red light. Seems to happen sporadically and is difficult to reproduce. There have been other reports of it online here: https://priuschat.com/threads/tsb-nimh-only-reduced-power-when-accelerating-from-a-stop.187455/ https://priuschat.com/threads/2017-prius-2-no-acceleration-movement-from-full-stop.209317/ https://priuschat.com/threads/2016-prius-2-stalling.200606/
Blue tooth connection via phone will be dropped after 7-10 seconds post connection to the vehicle. Audio player can be connected separately but once the phone connects the display console resets as if the car was just being started. Car can be stationary not moving. No difference
The gps system reports inaccurate system location. I live in henderson, nv, but it shows the location as boulder city, nv. This is an 11 mile difference. I have Toyota's sos feature (like onstar), so if emergency assistance is needed, they would not come to the correct location. I do not know if it is only my car or others. The sos rep seemed to be aware, but no notice was sent out to customers for service or recalls.
When starting the car the electronic dashboard was black with no info on speed. We drove it 70 miles home guessing at the speed. We turned if off and restarted it with the same result. Then we got home, turned it off, restarted it and the dashboard was back, working normally. Wtf? not having a speedometer is a huge safety hazard. There should be a fallback for this. We cant trust this car and likely will trade it in soon for something else.
- Peoria, IL, USA
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When the car is in drive and stationary on a hill facing up wards (like in a driveway) the car still sends electrical power to the electric motor and to the wheels even when the brakes are applied. This only happens when facing up a hill. All electrical power is suppose to turn off when the brake is pressed. This started happening two weeks ago and the dealership said that this is normal but it is not normal as it never did this before. It does not happen when on flat ground or when facing down hill. Dealership claimed that this is the hill assist feature holding the car but that's a lie as the hill assist utilizes the brakes and not the motor. Dealership could not find any error codes and refused to dig further into the issue and made up lies about it.
When comes to a stop and on acceleration vehicle won't move especially after rain and car wash. It happened 10 times since June 2017 and once a week lately. Every time it starts with loud noise from engine, right after that the battery bar dropped from full bar to one bar quickly in one second. If I have to stop at the traffic light when this happens it won't move. Early this year 01/12/2018, it 's being towed to puente hills Toyota dealer and service couldn't find any clue after 5hrs. On 06/01/2018 we brought it in again for same issues to the same dealer and being told no clue after 5 hrs again. On 06/06/2018 at $18.38 pm pst, it happened again.. I feel so unsafe to drive, it might get me killed anytime when it happens,
Over the past year and over 15,000 miles our 2016 Toyota Prius four touring has experienced sudden displays of warning messages and lights reporting braking power low - visit your dealer; braking power low - stop in a safe place - see owner's manual; pre-collision system malfunction - visit your dealer; anti-lock brake system malfunction - visit your dealer; lane departure alert malfunction - visit your dealer; ics malfunction - visit your dealer; check cruise control system - visit your dealer. The following codes/faults have been detected: ABS - C1403, C1407, C1415; parking sensors - C164D, C1A50; blind spot monitor - C1A45; blind spot monitor slave - C1A45; pre-collision system 2 - C1A50; lane-keeping assist 2 - C1A50; ECU - P157800 & cruise ECU - P157800. The warning messages/lights came and went while driving on both city streets and highways. Each time I took the vehicle to the dealer. They could see the codes in memory, but could not replicate the problem. No parts were replaced. The only thing they have done is to take apart and reseat some of the connector cables and then send us on our way telling us to bring it back in if it happens again. We are seriously concerned about the safety of this vehicle and have no reassurance that the problem has been resolved and no reassurance that major braking systems might not be available to me if it occurs again. I contacted Toyota customer assistance with no change in their position. I am currently negotiating to trade the vehicle in as I am not comfortable that the problem is resolved and deeply concerned that it will happen again. I have shared video of the warning messages and lights with the dealer, but am unable to upload video here.
Rodents were attracted to the soy-based wiring used by Toyota and caused expensive damage by chewing wires. Toyota has had problems with this wiring and rodent damage for 4 years and I was unaware of this when I bought the vehicle. They refuse to pay for my damage and also refuse to replace the wiring with non-soy wiring, which means it could easily happen again. Many other customers, I discover, have reported rodent damage to wiring because of the soy-based material.
While driving on hwy 14 at approximately 1100 am, my son's vehicle left rear tire blew off. He summoned assistance to aaa who came and put the spare tire in, he subsequently drove the car to Sierra Toyota in lancaster ca and chanin yescas service dept mgr assisted with having the car check. I am concerned with this vehicle it is the 2nd incident with have had with the vehicle within a week. Please assist asap.
I purchased a new 2016 Prius four on February 16, 2016. The literature on the Toyota factory website says my Prius is equipped to switch from english to metric units. Unfortunately, Toyota failed to disclose that any Prius manufactured in January and February and delivered to the United States did not have this feature working correctly. Without the ability to switch to metric units, by government mandate, my Prius does not meet Canadian motor vehicle safety regulations. Apparently some 2016 Prius vehicles sold in Canada also cannot switch to english units when driving in the United States presenting a potential safety hazard. Toyota has apparently failed to reveal a material fact that the Prius sold to me does not meet the Canadian motor vehicle safety regulations. There was no disclosure on the vehicle monroney sticker that this Prius has a disabled or deleted english to metric unit speedometer display. After 10 months from my date of purchase, the only remedy Toyota offers is for me to purchase a new Prius to replace my new Prius at my expense. When I purchased my new 2016 Toyota Prius, I did not know I was purchasing a vehicle with vaporware software. There was not a clear and conspicuous disclosure that Toyota deleted the option to select between english and metric units which affects multiple vehicle systems such as navigation, heater/ac, speedometer, and odometer. For my first six months of ownership, the navigation system would constantly reboot until Toyota fixed their software. This system rebooting was a significant driver distraction. Toyota advertises, "let's go places." For truth in advertising, Toyota should really say, "let's go places, except to Canada, Mexico and the rest of the planet because some Toyota speedometers can't display metric units."
The contact owns a 2016 Toyota Prius. The contact stated that the speedometer gauge did not allow the ability to switch from miles per hour to kilometers. The vehicle was taken to the dealer, but was unable to be diagnosed or repaired due to N manufacturer default. The manufacturer was made aware of the failure. The failure mileage was 1,500.....updated 02/06/17
I recently purchased my 3rd Toyota in August (2016 Prius). I upgraded my 2011 Prius because I really needed built in navigation due the nature of my job and my commute. I am currently experiencing issues with the radio/navigation system, which is very frustrating because this is a "brand new" car. The navigation system and radio turn off and on continuously during the most dangerous and inconvenient times (I.e. when I am navigating though unfamiliar wooded areas in the dark when it's raining). This also causes one of my instrument panels to go blank. I have had to stop using the navigation system altogether at times, which again is the reason that I upgraded my car in the first place. This began happening intermittently in September, and the problem has gotten progressively worse over time. I took off of work to have the issue diagnosed and repaired by the dealership in November and to have the parking cable recall issue taken care of. I was informed by the dealer that they did not have the parts in to address the recall issue and the technician immediately noticed the issue with the radio/navigation system but was unable to correct the issue because the update that "might" fix it is not available yet. This is very dangerous and this issue needs to be addressed before someone gets hurt.
The coating on the wiring system attracted rodents to my car, the rodents ate through the electrical and tried to nest in the engine bay. The results were massive systems malfunctions and the car wasn't safe to drive. I had to get it towed to Toyota and they stated that this is a common problem. "they've seen alot of this recently"
Rodent damaged wiring and casings by eating/damaging both at a cost so far of $2700. I have owned this vehicle for one month. I've been told the warranty does not include the damage. I asked about where the dealership stored the vehicle prior to its delivery to me. I wasn't satisfied with their explanation.
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- Hoover, AL, USA