2018 Toyota Tundra: adaptive cruise control problems

Filed Jan 27, 2026 · Driver assistance, Electrical · NC

When starting up my truck in the morning there is rough idle that cause truck to sputter and sound horrible. It eventually smooths out but I believe the computer needs flashing. When I look online some have a recall for the engine 3UR-FBE / 2018 Toyota tundra, but when I put in my vin # it shows no recall and throws off check engine light Code. Also my radar sensor that it on for cruise control is showing up on dash please contact dealer and flashing. They have replaced this before with recall and now it’s acting up again. Also traction control is lighting up I. The dash as well blinking along with all these codes.

Filed Aug 8, 2025 · Fuel system · DE

Vehicle occasionally stalls on acceleration and deceleration. Occasional stall on idle. Check engine light DOES NOT ILLUMINATE. After several stalls; warning lights for trainer brake controller, forward anti-collision, and cruise control errors illuminate. Diagnosed as bad fuel pump and fuel pump modulator. Fuel pump and modulator replaced and issues rectified.

Filed Mar 21, 2022 · Driver assistance, Electrical · NY

While driving, multiple warning lights come on and multiple warnings scroll on the dash. Transmission shifting becomes irregular, hard, slipping, pre-collision alert fails, adaptive cruise control fails, ABS system deactivates. I know of this occurring on multiple other Toyota vehicles as well. This has happened three times and only resolves when battery is disconnected. Weeks or months goes by and it recurs.

Filed Dec 10, 2018 · Acceleration · 6,200 miles · NC

Loss of dynamic radar-controlled cruise control: clean sensor, once on city street, then I stopped and restarted the vehicle, it cleared itself, then a few minutes down the road stopped at a stop sign. It came back on. I checked my VIN# and my truck is not listed for the same recall that I have seen others get.

Filed Oct 21, 2018 · Acceleration · 12,000 miles · IN

The avoidance collision radar can be intermittent. Sometime, it detects the vehicle in front of me, then stop working and my truck will accelerate towards the vehicle in front of me. At other time, the warning light will come on, saying the sensor needs to be cleaned, even though the windshield is spotless and drop my truck out of cruise control, causing a quick de-acceleration. I was in front of a semi-truck going at highway speed when this happened and the semi-truck came close to hitting me in the rear end. I've had this into my toyota dealer and they told me that the vehicle software does not record when the collision avoidance system isn't working. I consider this problem to be extremely dangerous and have avoided using my cruise control most of the time.

Filed Aug 28, 2018 · Brakes, Driver assistance · 8,000 miles · NC · crash

Pre-crash system does not work properly, with no vehicle in front of me while driving on the hwy, at times if a vegicle passes me on either left or right side, the crash warning beeped and brakes applied, note: no one is in front of me, this has happened a few times, since the initial recall for updates, my pre-crash system inticates its on, however, its not working, yesterday at about 2:15 pm on 8/27/2018 it failed and I hit someone in the rear and speed under 10 MPH, I was told by fred anderson toyota of sanford nc service department that they have had some that was out of calibration and that mine should have worked wether if cruise control is on or off.. Well it doesn't not work, my truck goes into toyota today 8/28/2018 at fred anderson toyota to be checked again since the software recall update. I have 650.00 in damage to my truck, not sure on the amount of the vehicle I hit because the system failed. I have been reading a lot of complaints on this issue, and it seams toyota is not doing nothing

Filed Aug 9, 2018 · Acceleration, Driver assistance · 1,500 miles · VA

Tl* the contact owns a 2018 toyota tundra. While driving various speeds with the cruise control engaged, the pre-collision system malfunction warning indicator illuminated. The contact stated that the warning indicator remained illuminated even after the cruise control was disabled. The vehicle was not taken to a dealer to be diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 1,500.

Filed Mar 22, 2018 · Acceleration · 700 miles · NJ

The pcs "pre-collision system" shuts off all the time! When cruise control is on and is supposed to slow down by itself when there's another car in front of you actually accelerates my vehicle that can create a severe accident by crashing into the vehicle in front of me! The system is designed on the radar base system that is supposed to slow down the vehicle to avoid an accident and it actually speeds it up which can cause a fatality!

Filed Mar 22, 2018 · Driver assistance, Electrical · WA

Pcs system randomly turns itself off, rendering radar cruise control and other safety features useless. Started with less than 500 miles on the car. It has been in the dealership 3 occasions at this point with all updates completed and pcs light still illuminates on its own.

Filed Mar 21, 2018 · Electrical · 2,500 miles · IL

Toyota's pre collision sensor is unreliable and intermittently produces an error "pcs sensor unavailable -- clean sensor". The safety portion of this complaint comes when dynamic cruise control is set. When the sensor no longer detects a vehicle in front of you, and there is clearly there, the vehicle will accelerate at a high rate of speed before the error shows on the dash cluster if the cruise control is set above the traffic flow. I expect and realize that this situation could occur, and I avoid using the system. However, if somebody not familiar with this fault is using the pcs sensor and does not realize this problem, they will end up rear ending another vehicle, possibly at a high rate of speed before the system shuts itself off and lets off the throttle. I know I am not the only person dealing with this issue. Several others on different forums have described similar situations where accidents have been narrowly avoided because of this fault. The local toyota dealership has been helpful in resolving this issue and have pulled codes for a forward camera communication issue. A new camera has been ordered and will be installed next week.

Filed Mar 15, 2018 · Acceleration, Brakes · 7,000 miles · TN

The pre collision warning light illuminates a various times. The cruise control will not work when illuminated. The sensor has been kept clean. It does not give a failure code at the dealer. It was reprogramed. The pre collision braking was a major feature in my buying process and it does not work correctly.

Filed Feb 25, 2018 · Acceleration, Brakes · 2,500 miles · CA

Multiple events. 2500 miles on vehicle. While driving 70mph in cruise control the pre-collision warning came on and vehicle applied brakes forcefully without any vehicle ahead of my vehicle until I turned off cruise control. After the event the traler brake malfunction statement and warning lights were on. Pre -collision failure light reset after key cycled off and back on. Failure occurred multiple times in multiple driving conditions, currently trailer brake failure light is illuminated. Each time I had to exit or pull over and stop vehicle, cycle key to have warning clear.