AI Damage2025 Toyota Crown Signia: common problems
Owners of the 2025 Toyota Crown Signia filed 14 complaints with NHTSA, most often about electrical system and structure. The maker issued 36 service bulletins for this year. We found 5 repair videos on YouTube. Details by component below, with sources.
Key figures
- Owner complaints
- 14
- involving a crash
- 1
- Technical service bulletins (TSB)
- 36
- YouTube repair videos
- 5
What fails most often
- 1 Electrical system 29% of all complaints
- 2 Structure 14% of all complaints
- 3 Engine 14% of all complaints
- 4 Exterior lighting 14% of all complaints
- 5 Forward collision avoidance 14% of all complaints
- 6 Seat belts 7% of all complaints
- 7 Service brakes 7% of all complaints
- 8 Tires 7% of all complaints
- Electrical system: 4 complaints (29% of all); manufacturer bulletins for this component: 6.
- Structure: 2 complaints (14% of all); manufacturer bulletins for this component: 13.
- Engine: 2 complaints (14% of all); manufacturer bulletins for this component: 2.
- Exterior lighting: 2 complaints (14% of all).
- Forward collision avoidance: 2 complaints (14% of all), 1 of them with a crash reported by the owner.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2.5 L · hybrid · 4 cyl
- CVT
Drive: AWD
Symptoms owners describe
How many of the 14 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 4 | 0 | 6 |
| Structure | 2 | 0 | 13 |
| Engine | 2 | 0 | 2 |
| Exterior lighting | 2 | 0 | 0 |
| Forward collision avoidance | 2 | 1 | 0 |
| Seat belts | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Other | 4 | 1 | 15 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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.
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.
Bridgestone tires were out at 18 k. The tires were roared by Toyota and aligned. This is a safety item and a fleet defect
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 while driving at an undisclosed speed, the instrument panel became inoperable, and the display screen appeared blank. The contact received notification of NHTSA Campaign Number: 25V595000 (Electrical System); however, the part for the recall repair was not yet available.
When leaning on the front seat center armrest, the armrest makes a clicking noise when hitting rough or bumpy roads. [dealer] dealer replaced the armrest, and the same issue occurred. Toyota told the dealer they want the part to investigate further.
As I was driving down a suburban road at about 30mph the brakes suddenly came on by themselves for few seconds as I approached a parked car on my right side. As I started to pass this car my vehicle continued moving forewarned and I did not come to a complete stop.
Driver headlight is lower than passenger headlight creating a big dark side on driver side. Dealership say it canât be corrected
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 9,552 of 36,659 model years in the NHTSA data (top 26% most complained about).
On average one model year of the Crown Signia has 8 complaints (2 years in the data). This year has 14, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a…
Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition…
- The air conditioning dye injection tool kit has been developed to aid in identifying the location of air…
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and…
- To assist with the early detection and early resolution of audio related concerns you may be asked to…
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the…
- Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU
Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming…
- Some 2021 – 2025 model year Toyota vehicles may require the download and installation of vehicle specific…
Some 2021 – 2025 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) is replaced. GTS+ software has been…
- Long-term or off-site storage requires special care to maintain vehicle condition
The following guidelines should be performed to minimize vehicle component/part degradation due to extended vehicle storage conditions. Long-term storage can affect a vehicle’s systems and components. Any problems that…
- When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to…
When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results screen has been enhanced to help identify…
- During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce…
During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinished before vehicle delivery, it is…
- 2025 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat…
2025 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat…
- The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix…
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and…
- To prevent brake rotor rust from forming during transportation and storage, wheel film will be used…
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from…
- Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical…
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal…
NHTSA lists 36 bulletins for this year; the 12 newest are shown here.
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
- Toyota Crown Signia 2025 | Cost To Own Breakdownamount per author: 47,900 UNSPECIFIED_DOLLAR
- 2025 Toyota Crown Signia - 15 THINGS YOU SHOULD KNOWamount per author: 443,500 UNSPECIFIED_DOLLAR
- Оголошено ціни на нову Toyota Crown Signia 2025 — Чого очікувати?
- 2025 Toyota Crown Signia | To Wherever Life Takes You
- 2025 Crown Signia at Maple Toyota
Other years of this model
Questions and answers
What are the most common problems with the 2025 Toyota Crown Signia?
Owner complaints to NHTSA most often mention: electrical system, structure, engine. Total complaints: 14. The most frequent symptoms in complaint texts: headlights and tail lights (14%), infotainment or screen glitches (14%), warning lights, check engine (14%).
How many service bulletins (TSB) were issued for the 2025 Toyota Crown Signia?
NHTSA lists 36 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2025 Toyota Crown Signia from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2025 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.