Problems · NHTSA complaints
2025 Toyota Crown Signia Hybrid problems
Owners filed 14 complaints about the 2025 Toyota Crown Signia Hybrid with NHTSA between Nov 2024 and Sep 2026. The most-cited component is electrical system (4).
Complaints
14
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Electrical system4
- Structure2
- Forward collision avoidance2
- Exterior lighting2
- Engine2
- Visibility/wiper1
- Tires1
- Service brakes1
- Seat belts1
- Other / unknown4
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 13, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
9
4
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2024 | 1 |
| 2025 | 9 |
| 2026 | 4 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Electrical system
4 reports
“The contact's wife owns a 2025 Toyota Crown Signia. The contact received notification of NHTSA Campaign Number: 25V595000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.”
Structure
2 reports
“At approximately 6,700 miles, a rock/road debris passed through the large openings in the factory front grille of my 2025 Toyota Crown Signia XLE Hybrid and punctured the A/C condenser behind the grille. The A/C system lost refrigerant and stopped cooling. A Toyota dealer inspected the vehicle, confirmed the punctured condenser, and replaced it. Availability of the removed component for inspection is UNKNOWN. The safety issue became apparent while driving in rain, when the windshield began fogging and the failed A/C system could not effectively dehumidify the air and clear the windshield, reducing forward visibility. There were no warning lamps or messages before the failure. The first symptoms were loss of A/C cooling and difficulty keeping the windshield clear in wet conditions. Toyota Motor North America was notified and opened case #260914001661 regarding this incident and my concern about the front-grille/cooling-component vulnerability. The grille openings are approximately 1-3/8 inches, and the condenser is about 9 inches behind the grille with no fine debris screen protecting the exposed cooling components. I am concerned that this design permits…”
Forward collision avoidance
2 reports1 crash
“While driving less than 10 mph, (slightly down hill) approaching the house garage, the car suddenly accelerated and the brake was applied to stop but the car continued and smashed through the garage door, proceeded through garage, smashed through the back of garage, hit a Weber gas grill, proceeded over a low-level deck and hit a large tree. The impact force of the car (left front) against the tree caused the car rear end to rise up and move 30 degrees to the right and land on the low-level deck. The driver was the only person in the car and suffered a broken right wrist and contusions to her chest. Both Front air bags did not deploy, side air bags did deploy. There was no warning given and the Car collision avoidance system did not stop the car. The damage to car was total. Car Emergency Voice activated and assisted in notifying ambulance and police. Insurance has reviewed the damage, but I am not aware that they are investigating for cause. There has been one other sudden acceleration reported of a 2025 Crown Signa. There is history of malfunctions of the Electronic Throttle Control (ETC) (per Google). There is an Event Data Recorder (EDR) on the car, but I…”
Exterior lighting
2 reports
“Driver headlight is lower than passenger headlight creating a big dark side on driver side. Dealership say it can’t be corrected”
Engine
2 reports
“The car was leased on 12/18/2024. On 01/24/2025, after starting the vehicle, the check engine light came on with the description: "a malfunction in the electronic control of the engine, throttle, or automatic transmission has been detected. Contact your Toyota dealer to have your vehicle inspected." I am attempting to get an appointment now to get the car in for service but being a month old - this shouldn't be happening.”
Visibility/wiper
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 13, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.