2016 Toyota RAV4: adaptive cruise control problems

Filed Mar 17, 2022 · Electrical · MI

I was driving from Ft Myers to Tallahassee on I-have 75 in Florida on March 8, 2022. All of a sudden, I heard the Lane Departure Assist go off in my car (which I had previously turned off because the alert is annoying) and my phone stopped working (it was plugged into a USB port in the car playing a podcast). A few minutes later, I stopped at a rest area and noticed my trip odometers had reset and a bunch of other settings I had previously set in my car had also reset back to factory settings, such as the cruise control settings, blind spot monitor, and parking assist. There might be more...I just haven't noticed those yet. When I got back home, I saw an envelope from Toyota titled, "12-Volt Battery Size and Installation Inspection Consumer Advisory." I did get my battery replaced in Winter 2020 by a non-Toyota dealer so now I'm wondering if that has anything to do with this Consumer Advisory.

Filed Oct 7, 2021 · Acceleration, Electrical · GA

- I believe the ECM has failed, and I believe this after replacing battery, starter, spark plugs, and spark plug wires. While accelerating, and while maintaining a consistent speed over 50 mph, the tachometer (and engine, accordingly) yanks itself back and forth between 3500 and 5500 rpm. The vehicle physically jumps back and forth between massive acceleration and decceleration, without any change in throttle/pedal placement. This occurs while in Cruise Control, Eco Mode, Normal Mode, and Sport Mode. There is not yet a discernable pattern or trigger identified in why this occurs. - My safety and the safety of others has been put at risk by the vehicle's jerking, halting, and unplanned acceleration in heavy traffic situations. It scares me and others in traffic, to the point that people have asked if I was okay after being able to visibly notice the car's behavior on the highway, and my reaction. - The problem has been reproduced twice by an independent service center. Toyota Dealership read the computer for the vehicle to pull codes, told me nothing was wrong, and sent me away. - The vehicle has been inspected by my local Toyota dealership (lackluster inspection, in my opinion). Nothing resulted from this inspection. - There were (and still are) NO warnings lamps, messages, reminders, codes, or notifications of any kind to show that something is abnormal in my engine. This is the most vexing part of this issue. As far as the computer in the Rav4 is concerned, everything is nearly perfect. and it IS NOT.

Filed Jul 27, 2019 · Brakes, Electrical · 47,000 miles · KS

Started my 2016 rav4 limited on 7/27/2019. After starting it none of the safety features are working. This appears to be a known issue among other toyota owners. The vehicle was fine when I shut it off the night before. Now anti lock braking, lane departure alert, pre-collision system, and adaptive cruise control are all failing.

Filed Oct 23, 2017 · Acceleration, Brakes · 26,000 miles · AZ

Passenger front wheel sensor harness was damaged by rodent. Vehicle has 26k miles and toyota refused to repair the break, and would only replace the entire harness at a cost not covered of $6300. The material change of these parts attract rats. This damaged cause ABS, lane departure, blind spot monitoring and cruise control systems to fail. The vehicle was parked in my driveway and I live in a gate community. I called the toyota customer line and was given the same explanation of the lack of warranty coverage. Case #1710230814

Filed Jun 20, 2016 · Acceleration · 2,500 miles · NE

The cruise control on my 2016 rav4 le awd with 6 speed automatic transmission is very erratic. At highway speed (60-70 MPH) it is fine on a flat road, but at the slightest incline will downshift to fifth, then slam into fourth gear with the engine rpms going up to over 4000. It will then either stay downshifted or constantly shift up and down until I am well over the top of the hill. The dealer said they all do that, so it's normal. I've stopped using the cruise because I'm concerned about possible engine and transmission damage from the harsh shifting and high rpms, but it also is very distracting to the driver which makes it a safety issue. I've complained to "ask toyota" customer service twice. They just say they'll pass along my complaint to the proper department.