Toyota Corolla warning lights comes on

Filed Jul 21, 2026 · Electrical, Engine · GA

I own a 2026 Toyota Corolla purchased in November 2025. The recurring problems began on December 8, 2025, when multiple warning lights appeared on the dashboard along with the message “System Malfunction – Visit Your Dealer.” The warning indicators involved several vehicle safety and driver-assistance systems. The vehicle was taken to an authorized Toyota dealership for inspection and repair. On June 16, 2026, the vehicle experienced another serious malfunction, including a “Transmission System Malfunction” warning. The electrical and operational problems continued despite dealership visits and repairs. The battery was also replaced, but this did not permanently resolve the recurring failures. During a later incident while the vehicle was being driven, multiple warning lights appeared and the vehicle lost power or shut off. There was no crash or injury, but the unexpected malfunction while driving created a serious risk to the driver, passengers, and other motorists. The dealership has also addressed an issue involving the shift lever position sensor and corrosion or water intrusion. I do not know the exact component responsible for all of these failures. However, the problems have occurred repeatedly since December 2025 despite multiple dealership visits. Toyota was notified and corporate Case No. 260630000224 was opened. I have not received a permanent explanation or resolution, and I am concerned that the vehicle could unexpectedly malfunction or shut off again while being driven.

Filed Dec 25, 2025 · Electrical, Engine · OH

Driving on highway around 65mph, car shut down internally completely blacking out inside. Turned back on a few seconds later while still driving all lights were blinking. Pushed the SOS no-one answered pushed again then someone came on. Matches the same description on the other 2025-26 hybrids in the corolla cross and camry hybrid.

Filed Nov 22, 2025 · Brakes, Electrical · TX

Beginning on April 18, 2025, my 2020 Toyota Corolla LE began experiencing repeated failures involving multiple safety systems while driving. Without warning, several lights illuminate at the same time, including: Brake System Malfunction, Pre-Collision System, Parking Brake System, Vehicle Stability Control, Check Engine, and Secondary Collision Brake System. These warnings appear suddenly during normal driving, then sometimes disappear, then return again unpredictably. These failures disable several integrated safety systems and create a serious safety risk due to changes in braking performance, loss of stability control, and disabled collision-avoidance functions. Diagnostic scans from both the dealership and an independent mechanic repeatedly show: P1578 — Brake System Malfunction P265B — Rocker Arm Actuator Position Sensor Circuit Range/Performance (Bank 1) Both codes reappear even after being cleared. The vehicle was with Loving Toyota Lufkin, TX multiple times over seven months. They received over $7,100 in insurance payments for repairs, $463 towing cost (due to the negligence of Loving Toyota) and almost $1,500 in rental cars (Paid by State Farm) but were unable to diagnose or fix the underlying failure. Loving Toyota also provided a courtesy rental for 7+ weeks while they did no repairs to the car. The safety warnings continue to occur. Toyota Corporate is now involved but the vehicle remains unsafe to drive. The same code P265B is present that was present back in April 2025. This car is not safe! The problem has been reproduced by me, the dealership, and an independent shop. The vehicle is available for inspection. All scans, photos, videos, and documentation are available upon request. Date first occurred: April 18, 2025 Issue continues intermittently to present day

Filed Aug 17, 2025 · Engine, Fuel system · CA

I have a 2019 Toyota Corolla Hatchback. The problems started on July 21st, 2025. While driving my 2019 Toyota Corolla Hatchback, I noted white exhaust smoke, even after the engine was warm. One week prior, I had filled the coolant reservoir, but when I checked it, the coolant was almost gone again. There were no visible leaks or puddles under the car. I refilled the coolant, but within days the car began shaking severely upon startup and emitted a coolant-burning smell. 5 minutes after, multiple warning lights illuminated on the dashboard simultaneously. I replaced the car battery, and the warnings disappeared. However, while merging onto the freeway, the same warning lights came back, the car lost power, and I could not accelerate above ~25 mph. If this occurred in heavy traffic, it could lead to a serious collision. I exited the freeway and had the car towed. DTCs from the independent mechanic and the Toyota dealer included: P11ED00 P030085 P030027 P030200 (Cylinder 2 misfire) C142571 (Stop light relay actuator stuck) U1117 B2284 B15AD The Toyota dealer identified a “Port Injector #2 malfunction” and recommended replacing all four injectors (~$2,000) but could not confirm this would fix it. They noted a coolant-burning smell but advised addressing the misfire first before further diagnosis. There is an active class action lawsuit alleging that 2019–2023 Toyota Corolla and RAV4 models have defective coolant bypass valves that may cause engine issues, overheating, or coolant loss without visible leaks. This matches the coolant loss, white exhaust smoke, and eventual power loss while driving. I request that the federal safety agency investigate this issue in connection to the reported coolant bypass valve defects affecting 2019–2023 Toyota Corolla models.

Filed Feb 20, 2023 · Electrical, Transmission · NJ

At a stop, the engine shuts off. This is normal. In two instances, the vehicle threw up multiple warning lights (Press Brake Firmly to Restart) and would not start on the release of the brake. The second incident happened on a hill and the vehicle began to roll backwards. The vehicle then needs to be put in park, shut off and restarted. On the restart it moves again. The dealer was called about this, but said they didn't know it was a problem. They cannot replicate. The safety issue is that the car needs to restart to drive again. At a green light, the car is at risk of being hit since it won't be moving, as expected. It is also a problem that when the brake is released and the issue happens the car can roll backward.

Filed Sep 10, 2022 · Airbags · CA

I took my vehicle to the shop on 3/31/21 as I received a recall notice for the airbags. I am currently trying to pass inspection for registration renewal but have several warning lights; one of them being the airbag system. Obviously the problem has not been fixed.

Filed May 22, 2022 · Acceleration · AR

When using cruise control, all warning lights come on while driving - check engine, parking, abs, everything. It stays like this for about a week and then stops until the next time you use cruise control. I have taken to the dealer and they acted like it wasn’t a problem and turned off the lights but it still keeps happening.

Filed Dec 21, 2021 · Airbags, Body · TX · crash

While driving my car it turned off and it was hard for me to turn and all my lights was hard to steer and all the lights on the dash board turned on and they was not turning off and I got in. A wreck by me not being able to turn and hit a bush and my car got total

Filed Oct 1, 2020 · Acceleration, Driver assistance · CA

Car suddenly all the dashboard lights came on at once brake lights,ABS lights,power steering lights,and speedometer. I've been to the dealership they ripped me off said they had no clue what was wrong. *ln

Filed Sep 28, 2019 · Driver assistance · 175,000 miles · UT

I have a manual transmission and at random times while I am driving and in motion, I'll push in the clutch to brake or coast, the rpms go down until the engine shuts off, and the steering wheel goes hard. The headlights and dash lights still work, in fact all the dashboard lights, like the check engine and maintenance required lights, actually come on (just like when you're key ignition is in the "on" position but you haven't started the engine yet). The car starts right back up when I turn the ignition or pop the clutch while in gear. This has been happening about once every week ever since I bought the car over 4 years ago. Within the past couple of months at random times when trying to start my car my car (stationary), the engine will turn over but won't start on first try. On second try I will turn the ignition and pump the gas pedal and after a few seconds it will start up and run perfectly fine. I've read about the recall of the ECM for my make, model, and year, but when I search my VIN it comes back with no current recalls. Within the first year of owning the vehicle (purchased from private party in august of 2015), I learned of the airbag recall and took in and got it fixed, but a couple of months ago, about 2.5 years after taking it in for the recall, my SRS light came on as well. The check engine light is not illuminated and everything else is functioning properly, but I am a little worried about safety especially now that the SRS light has come on. On multiple occasions I have been surprised by the engine shut off while trying to make a turn, which very easily could have caused an accident, and now if I do get in an accident and the airbag system fails, then I could be injured even more severely or die. I'm a college student on a very tight budget, otherwise I would've just seen a mechanic by now. I thought I'd try filing a complaint first.