AI Damage2018 Toyota Corolla: common problems
Owners of the 2018 Toyota Corolla filed 135 complaints with NHTSA, most often about air bags and fuel/propulsion system. The maker issued 123 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 135
- involving a crash
- 26
- Technical service bulletins (TSB)
- 123
What fails most often
- 1 Air bags 27% of all complaints
- 2 Fuel/propulsion system 17% of all complaints
- 3 Engine 12% of all complaints
- 4 Fuel system 11% of all complaints
- 5 Electrical system 9% of all complaints
- 6 Powertrain 9% of all complaints
- 7 Service brakes 8% of all complaints
- 8 Vehicle speed control 8% of all complaints
- Air bags: 36 complaints (27% of all), 17 of them with a crash reported by the owner; manufacturer bulletins for this component: 5.
- Fuel/propulsion system: 23 complaints (17% of all).
- Engine: 16 complaints (12% of all); manufacturer bulletins for this component: 5.
- Fuel system: 15 complaints (11% of all), 1 of them with a crash reported by the owner.
- Electrical system: 12 complaints (9% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 8.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 1.8 L · petrol · 4 cyl
- CVTnamed in 2 complaints
- manual, 6-speed
Drive: FWD
Symptoms owners describe
How many of the 135 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) |
|---|---|---|---|
| Air bags | 36 | 17 | 5 |
| Fuel/propulsion system | 23 | 0 | 0 |
| Engine | 16 | 0 | 5 |
| Fuel system | 15 | 1 | 0 |
| Electrical system | 12 | 1 | 8 |
| Powertrain | 12 | 1 | 0 |
| Service brakes | 11 | 4 | 6 |
| Vehicle speed control | 11 | 1 | 1 |
| Seat belts | 11 | 1 | 0 |
| Steering | 5 | 1 | 3 |
| Suspension | 5 | 0 | 1 |
| Structure | 4 | 2 | 57 |
| Forward collision avoidance | 4 | 0 | 0 |
| Lane departure | 3 | 1 | 2 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
A really rough storm hit and it knocked down a huge tree in the road covering the entire road. I did not see the tree until I got up on it and I went straight through it. I was running around 40 mph and total front end impact took the whole bumper off but my airbags did not deploy.
A whole new set of 4 tires were purchased and installed on the vehicle on 10/10/2024. While driving at highway speed 3 weeks later the rear driver side tire, in quick succession, went flat and almost instantaneously disintegrated causing the car to spin out and crash off the road.
None of the airbags went off, severe front end damage on the right side to the fender, wheel, axle, radiator, hood, oil pan, and other front end components.The right front wheel is completely bent and the right front tire blew out. Front right headlight completely missing.
The air bags did not deploy, and no one was injured. The contact was unsure if there was a police report filed. The vehicle was towed, and it was deemed for total loss. The dealer was contacted and stated they were unsure of the cost of the repairs because the vehicle had an anti-lock brake feature.
The contact stated that while driving at various speeds, the brake warning and the master warning lights illuminated intermittently. The vehicle was taken to an independent mechanic where a diagnostic reader was used, however, the mechanic was unable to locate a failure code. The vehicle was not repaired.
The contact stated that while driving at 60 MPH in inclement weather, the brakes failed to stop the vehicle and she lost control of the vehicle. The vehicle crashed into the median and was spinning before another vehicle crashed into the contact's front end. The air bags were not deployed upon impact.
The contact stated no warning light was illuminated. The air bags did not deploy. The contact stated no one was injured or sought medical attention. A police report was filed. The contact was able to drive to her residence but continue to experience the failure.
While the contact was attempting to enter highway traffic, the lane departure wheel assist malfunction. The lane departure wheel assist engaged without being activated by the driver causing the vehicle veered left and right. The contact lost control of the vehicle and it crashed into a wall barrier.
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 466 of 2,102 model years in the NHTSA data (top 22% most complained about).
On average one model year of the Corolla has 127 complaints (12 years in the data). This year has 135, about average.
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
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…
- 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…
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal…
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow…
- Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad…
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can…
- Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a…
Some 2005 – 2024 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…
- Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal…
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination.
- This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for…
This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
- This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life…
This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024. These products are ordered through the Toyota Complete Maintenance Care (TCMC)…
- DP
On November 28, 2023, a class action settlement of claims for certain airbag control units was finally approved by the federal court. The settlement includes Toyota?s agreement to provide an Extended New Parts Warranty…
NHTSA lists 123 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Toyota Corolla?
Owner complaints to NHTSA most often mention: air bags, fuel/propulsion system, engine. Total complaints: 135. The most frequent symptoms in complaint texts: warning lights, check engine (16%), airbags did not deploy (11%), stalls while driving (11%).
How many service bulletins (TSB) were issued for the 2018 Toyota Corolla?
NHTSA lists 123 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 2018 Toyota Corolla 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 2018 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 2026-11-04.