Forward Collision Avoidance Problems of Toyota 4Runner

Toyota 4Runner owners have reported 16 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 adaptive cruise control (6 problems). The second most common problem is related to the vehicle's warnings (6 problems). For details of each of the problem category, use the links in the table.

Table 1. Forward Collision Avoidance related problems of Toyota 4Runner


Recently reported Forward Collision Avoidance problems of Toyota 4Runner

The Adaptive Cruise Control problem

When raining or snowing it deactivated several times causing dangerous situations at high speed   Read details...

The Warnings problem

The car just accelerated while during into parking lot. I used brake but did work and hit on to the pole. It accelerated pretty fast. The parking lot store has a video of me coming in slow and the the car accelerated.   Read details...

The Automatic Emergency Braking problem

My vehicle is throwing the abs light and slamming my breaks. I’ve taken it to Toyota, it’s not showing any codes so they can’t diagnosis it to fix the issue. It may go two weeks and drive fine, and then it does it again. Whether I’m going 10mph or 55mph, it will do this.   Read details...

The Dynamic Brake Support/brake Assist problem

The contact owns a 2020 Toyota 4runner. The contact stated that while the driver crashed into another vehicle, the air bags failed deploy. In addition, the contact stated that the braking alert for getting to close to a vehicle failed to illuminate. A police report was filed.   Read details...




4Runner Service Bulletins
4Runner Safety Recalls
4Runner Defect Investigations