2020 Toyota RAV4: adaptive cruise control problems

Filed Jul 15, 2025 · Driver assistance, Steering · MD

i cant use my cruise control its not going straight and everytime im turning i can hear a grinding noise its coming from power steering

Filed Apr 8, 2025 · Driver assistance, Electrical · NY

The wiring harness to the lithium battery is corroded, and it is unregulated. My repair shop said the car is unsafe to drive because of the amount of unregulated electricity in the battery. Also, the cruise control doesn't work. My repair shop says this is happening to other vehicles. Parts and labor total almost $7,000.

Filed Dec 30, 2024 · Engine · NJ

What component or system failed or malfunctioned, and is it available for inspection upon request? The Engine Coolant Bypass Valve B failed. The check engine light comes on and disables All-Wheel-Drive, Radar Cruise Control, Lane Keep Assist and interrupts functionality of the infortainment system. I am also worried that it could have a negative effect on the operation of the engine. How was your safety or the safety of others put at risk? My safety or the safety of others was not put at risk. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The problem has been confirmed by an independent service center. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No

Filed Mar 26, 2024 · Engine · 40,000 miles · NE

The contact owns a 2020 Toyota Rav4. The contact stated that while driving 70 MPH with the cruise control activated, the vehicle briefly lost motive power. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the coolant temperature sensor, requiring that the coolant temperature sensor to be replaced. The vehicle was repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 40,000.

Filed Aug 21, 2023 · Transmission · NE

Engine stalled on highway, was fortunate other drivers allowed us to get to the inside lane and on the shoulder. It bucked a couple times a few minutes earlier. A host of warning lights came on the dash. car did restart after ignition cycled off and on. Had over 1/2 tank fuel. Dash warnings that remained on CEL yellow. parking assist Radar and lane assist. Power steering seemed weak. No cruise control. Over the next 550 miles with engine shut offs during fuel stops dash warnings went out and car returned to normal. No longer trust this car with 70,000 miles.

Filed Jan 14, 2022 · Brakes, Electrical · 9,000 miles · FL · crash · 3 injuries

The contact owned a 2020 Toyota Rav4. The contact stated that while driving 45 mph with the cruise control activated and while coming to a red light, the driver depressed the brake pedal and the braking system malfunctioned causing the vehicle to not stop. The vehicle drove through a red light causing a collision with a second vehicle. During the crash the driver sustained rib and torso injuries, the front passenger sustained injured ribs and fractured tailbone and the rear passenger side occupant sustained a fractured tailbone. No further information was available regarding the second vehicle. During the crash, the vehicle was destroyed. A police report was taken at the scene and the vehicle was towed away. The contact indicated that prior to the incident the vehicle had been examined at the dealer for a possible braking problem but no trouble was found. The manufacturer and local dealer were notified of the incident. In addition, the contact indicated that the backup camera audible alarm was inoperable. The failure mileage was 9,000.

Filed Jun 22, 2021 · Steering · PA

Ongoing problem with an intermittent steering issue. The problem is that this is an intermittent issue and hard to get to dealer during time of concern, and while they could troubleshoot the issue before the issue fixes itself. The concern ALWAYS happens upon starting vehicle. Never happens when you are already going and issue is not present. Steering wheel will pull right, or left, upon start up, and then at some point it fixes itself and problem is no longer an issue. Could happen at any time upon start up, cold or hot weather, fresh start, or going back out after having been on road already, just no rhyme or reason for it. The safety issue is that when turning, when it is pulling, is that it pulls you towards the curb/shoulder, or towards oncoming traffic. Additionally, it will also not return the wheel after a turn, so if it was pulling left, and you are turning left for example, you have to manually get that wheel back or it'll just keep going left. I've experimented with turning off lane keep assist, lane centering (cruise control), put it in different modes like trail, sport, etc. and even stopped on the shoulder, and tried to re-start the vehicle. Nothing can stop it consistently. And it fixes itself within a 10 minute period. I have checked the AWD monitor screen to see if a wheel is pulling harder than the others based on the display of power going to wheels, no luck. It has been doing this since day one. Not every trip. Not even every week. Sometimes it could happen 5x in a week, and sometimes it could be 2 weeks before it happens again and then again in another couple of weeks. Not the road either. Must be paying attention when starting out because it could happen on any trip, during a trip if stopping and re-starting vehicle while on a trip, etc. because it can/will pull you. I have a video, albeit hard to really see much but shows car pulling. Also note this is NOT a torque steer because it could happen on acceleration OR not.

Filed Jun 22, 2021 · Acceleration · PA

A different problem that involves steering is when using speed control (cruise control). I only have attempted this while on the PA Turnpike at faster speeds, or a highway with a higher speed limit, but when engaging speed control with lane centering assistance, vehicle will sometimes pull you too close to the left side of your lane. In some cases, it will almost appear to others you are drunk as it is working to keep you centered in your lane, but at times it will just pull you to the left side of your lane, so close to others that traffic will beep and I'll want to poop my pants, because it harder to pull back to center when this is doing the steering for you in cruise control mode. Have turned off lane center assist and the speed control works fine, including slowing you down as traffic slows. But with lane center assist on, and using cruise control, this is when erratic behavior exists. Dealer could not duplicate the issue - would require taking this on a fast moving highway, like the PA turnpike, and hope it happens while out on that trip. Does not always do it, and have to been able to figure out why it does it (I.E. double yellow line vs. white intermittent line). When it happens, it puts you too close to traffic next to you and could cause other vehicles to either impact with you or make them swerve out of the way thinking you are coming into their lane. Very serious when it happens, moving at high rate of speed, and lane centering when using speed control is very strong and harder to override vs. the small bump it gives you when not using speed control and too close to the shoulder for example. That lane correction works well, albeit a bit weak to correct. Has happened since new, August 2020. And continues to happen sporadically.

Filed Jan 25, 2021 · Driver assistance · 4,600 miles · OK

I have had a number of instances where my vehicle's lane keep assist will randomly jerk me out of my lane. In sept 2020 I experienced a significant event of this happening when I was driving in the right lane of an interstate and the vehicle jerked right suddenly, pulling the vehicle into the right shoulder and almost drove me off the interstate. Another significant instance happened on 1/23/2021. I was driving northbound on I-44 and I was in the middle of 3 lanes. My vehicle suddenly jerked the vehicle to the left into the left lane of traffic. Luckily, the vehicle next to me swerved onto the shoulder thinking I was going to hit them. There have been other regular incidents of this happening, but not as severe as these two.*dt*dt the consumer stated while driving on I-44, the vehicle suddenly jerked to the left towards traffic. The cruise control was not activated. The consumer stated the repair technicians were able dulicate the failure but, unable to repair it.

Filed Jan 19, 2021 · Driver assistance · 3,000 miles · CA

The toyota adaptive cruise control keeps a safe distance to the vehicle in front, slowing and accelerating properly to keep a set distance even down to a full stop. However, when traveling at any speed and another car enters my lane immediately in front of my vehicle the system does not recognize the new vehicle and how close it is to the front of my vehicle. It does not slow at all even if the distance to the intruder is only a car length or less. I have to manually brake quickly to prevent following to close and causing a possible rear end collision. This happens every time a car squeezes in from of me with the adaptive cruse on and is very repeatable. I've experienced it in another new rav 4 too. This has been repeatably going on since the vehicle was purchased new on jan, 2020

Filed Jul 31, 2020 · Brakes · 5,000 miles · WA

When using cruise control on the freeway. If the car in front of me goes to exit and slows down. My car brakes even though I am not exiting. I have almost been hit by two semis on two different occasions because of this. I have also almost been hit by a couple of cars as my car unexpectedly braked on regular roads when the car in front of me pulled into a right hand turn lane and slowed down next to me.

Filed Jul 5, 2020 · Acceleration, Steering · 1,000 miles · IL

Tried to set radar controlled cruise control for the first time on a work trip to michigan at 70 MPH. The steering wheel immediately turned to the left and took considerable pressure to keep vehicle straight. Took SUV in to shop and they said the radar controlled adaptive cruise control was working fine and they could not duplicate problem. This week took another work trip to michigan and the same problem happened about 20 times while trying to set cruise control at 70 MPH. When I disabled the radar cruise control the problem vanished but the SUV would not detect traffic in front of it and of course would not slow down. Will try to video this problem and take SUV back to shop for a fix.