Forward Collision Avoidance Problems of Toyota Prius

Toyota Prius owners have reported 99 forward collision avoidance related problems since 1996. Table 1 shows the 4 most common forward collision avoidance problems. The number one most common problem is related to the vehicle's automatic emergency braking (83 problems). The second most common problem is related to the vehicle's warnings (8 problems). For details of each of the problem category, use the links in the table.

Table 1. Forward Collision Avoidance related problems of Toyota Prius


Recently reported Forward Collision Avoidance problems of Toyota Prius

The Automatic Emergency Braking problem

2011 Prius. 80k miles. Brake booster buzz coming on every 15 seconds now. Abs, traction and brake lights on. I’ve heard of many Prius owners with the same issue. I also have another Prius with the same issue at 120k miles. Brake booster accumulator codes popping up with 80k miles.   Read details...

The Warnings problem

Infotainment screen stuck on "experience drive connect" screen which disables all the safety devices on the vehiucle. Oem needs to update the software to remove this screen. Screen is tied to Toyota subscription service. I believe all new Toyota products would have this vulnerability.   Read details...

The Adaptive Cruise Control problem

While driving 65 mph on the expressway on January 12th, 2026 under cruise control, I tapped my brakes to slow down. My brake warning light came on, along with the abs warning light, and the anti-swerve warning light. Cruise control no longer worked, and my brakes were noticeably hard to apply.   Read details...

The Forward Collision Avoidance problem

Tl the contact owns a 2016 Toyota Prius. While attempting to start the vehicle, the collision avoidance indicator remained illuminated and the cruise control failed to work. The contact took the vehicle to gates Toyota (640 w ireland rd, south bend, in 46614), but it was not diagnosed or repaired.   Read details...




Prius Service Bulletins
Prius Safety Recalls
Prius Defect Investigations