2024 Toyota Prius Exterior lighting Problems

“My Prius suddenly malfunctions and goes berserk randomly. No other way to describe it. I've taken it into the dealer twice, and I'm not confident I'm driving a safe car. I've not done anything to the car and it has not been in an accident. It's unclear why it does it. When it has an episode it is not safe to drive, won't turn on and won't turn off. The alarm goes crazy. Nothing works, all the dash lights turn on. I have videos. This has happened about five times and I've been called back from the dealer to pick it up. …”

“Description of Safety Defect: I am reporting an uncorrected factory design defect in the 5th-generation Toyota Prius (2024 model) that constitutes an immediate and ongoing daytime driving hazard. Under standard operation, whenever the vehicle's headlights are activated during daytime hours—conditions legally mandated by Massachusetts state law, such as during rain, heavy fog, snow, dusk, or dawn—the driver's 7-inch Multi-Information Display (MID) speedometer cluster and the central multimedia touchscreen plunge into an aggressive, low-brightness night profile. …”

“There is a safety design flaw with the dash lights. If the headlights are ON The dash lights are turned down to a significantly lower illumination automatically and cannot be turned back up to full brightness. This is a big issue when driving with your head lights on during daylight rain/fog. The dash lights won't turn up to full brightness and are very difficult to read, especially for anyone over 50 years old when the head lights are turned on. Alabama law requires head lights be on, not just DRL, but head lights. The dash is VERY dim. …”

“Background: Nothing failed or malfunctioned. There is no incident. This reports describes a design defect that puts the driver at risk. The dealer has acknowledged that the cars performs this way and says it cannot be fixed. Toyota customer service says this is how the car operates and short of a recall will do nothing about it. Problem: When the headlights are turned on, the dash and screen become so dim that they are only visible at night. If it is necessary to turn the lights on during the day, the screen and dash are too dim to read. …”