Home · 2018 Honda Civic Si · Complaints

What 598 owners told NHTSA about the 2018 Honda Civic Si

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (598)Crash / fire / injury (36)Steering (224)Fuel system (159)Electrical system (51)Engine (50)Brakes (21)Airbags (20)Body & structure (19)Transmission & drivetrain (14)Visibility & wipers (13)Driver assistance (8)

11 of 598 complaints match · Airbags · crash/fire/injury only · clear filters

Jul 3, 2024Airbags1 injury

Passenger airbag deployed with no impact, crash, or anything forceful to have activated it. Passenger airbag cracked windshield glass and injured passenger. An airbag issue was not included in any recall notification from manufacturer in the past year(s). No warning lamps appeared before the incident, which put my safety and the passengers safety at risk. I reported this to my insurance and have opened a claim. Insurance has been in contact with dealer/manufacturer and is currently under investigation.

NHTSA ODI 11598703

Apr 15, 2024Airbags1 injury

The contact owns a 2018 Honda Civic. The contact stated that while driving at 3 MPH, the front driver's side air bag unexpectedly deployed. There was no impact on the vehicle that could have caused the front driver's side air bag to deploy. The air bag warning light was illuminated after the front driver's side air bag was deployed. The contact stated that when the front driver's side air bag deployed, she leaned back and raised her left arm, resulting in a metal fragment from the air bag cutting her left thumb. There was also smoke coming from the air bag, which she inhaled; however, no medical attention was received. The contact pulled over to the side of the road and parked the vehicle. The contact inspected the vehicle for leaks but found none. The vehicle was restarted and driven to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 156,000.

NHTSA ODI 11582988

Jan 8, 2024Airbags1 injury

The contact owns a 2018 Honda Civic. The contact stated that while her husband was driving 40 MPH, the driver's side air bag deployed without warning or impact. The contact sustained injuries to his lip, but medical attention was not provided. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case and referred the contact to the local dealer. The failure mileage was unknown.

NHTSA ODI 11564120

Jan 7, 2024AirbagsCrash6 injuries

Was in a car accident [XXX] and air never deployed instead a warning starting flashing saying something was wrong with my air . I was in 3 car pile up and terrain truck went under my car and slung it around cause me to hit the bridge and it bent there entire metal frame when u looked under it the doors where not even ànd hatch back was jammed with huge gap between it and the car it cause the front windshield to become detached from the glue holding it in place u could see little shavings of Glass all the way around and if u pushed it would move the back of the car was higher than the front due to impact and being bent the entire car u could tell was bent from half way to back . The air bag should have deployed I was hit 2x and the 3rd hit was me coming from the air and slamming back down all 3 hits where very hard. The light continued to come on and off staying issue with air bags afterwards but came on for the first time during the wreck stating it is why it did not deploy because there was a critical malfunction and caused it to not deploy on either sides i was told to report this to Honda but do not know how I have tried since the wreck can you plz Check these car. My phone # is [XXX] plz feel free to call any time my name is [XXX] . Thanks INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11564018

May 21, 2021Airbags1 injury

As Karen drove over a speed bump in a residential area, the airbag deployed, causing Karen serious injuries.

NHTSA ODI 11418079

Jun 22, 2020AirbagsCrash1 injury

I HAD AN ACCIDENT ON JUNE 16 2020. A TRAILER HIT MY CAR IN THE BACK AND PULL ME OUT OF THE ROAD. AIRBAGS DID NOT DEPLOY. *TR

NHTSA ODI 11330125

Jul 11, 2019Electrical systemAirbagsCrash1 injury

AIRBAG DID NOT DEPLOY

NHTSA ODI 11230917

May 24, 2019AirbagsCrash1 injury

TL* THE CONTACT OWNED A 2018 HONDA CIVIC. THE CONTACT STATED WHILE APPROACHING A STOPPED VEHICLE AT 5 MPH, THE VEHICLE BEHIND WAS DRIVING 45 MPH AND REAR ENDED THE CONTACT'S VEHICLE CAUSING THE CONTACT TO CRASH INTO THE STOPPED VEHICLE IN FRONT. THE CONTACT STATED THE IMPACT MADE HER HEAD HIT THE STEERING WHEEL CAUSING HER TO FRACTURE HER NOSE. MEDICAL ATTENTION WAS REQUIRED. THE AIR BAGS DID NOT DEPLOY. THE VEHICLE WAS TOWED TO HER HUSBANDS BUSINESS. A POLICE REPORT WAS REPORTED. THE CONTACT HAD NOT CONTACTED THE LOCAL DEALER TO NOTIFY FAILURE. THE VEHICLE HAD NOT BEEN DIAGNOSED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 10,000.

NHTSA ODI 11209687

Apr 25, 2019AirbagsCrash1 injury

ON APRIL 20, 2019 MY HONDA CIVIC HATCHBACK WAS HIT ON THE FRONT DRIVER SIDE. ONLY THE PASSAGER AIRBAG DEPLOYED

NHTSA ODI 11203621

Mar 13, 2019AirbagsBody & structureCrash

HAD A BUMPER TO BUMPER CRASH ON FREEWAY DURING RUSH HOUR TRAFFIC WAS STOPPING AND GOING BETWEEN 5 TO 15 MILES AN HOUR I WAS HIT FROM BEHIND WHILE MY CAR WAS ON NEUTRAL THEN I HIT CAR IN FRONT OF ME MY BUMPERS AND GRILL PLUS SAFETY BUMPER BAR WAS BENT INTO RADIATOR, FRONT VEHICLE HAD SMALL DENT PLUS BUMPER DAMAGE MY FRONT CAR WAS TOTALED. BUMPERS ARE CLIP ONS THEY CAN FALL AT ANY MOMENT.

NHTSA ODI 11186629

Aug 23, 2018AirbagsElectronic Stability Control (esc)Fuel systemCrash

HAD TO HAVE TO MANY OIL CHANGES, ALMOST ONE A MONTH , NOT GOOD ON THE MILAGE THEN A CAMRY MAYBE WOULD HOLD OFF THAT MANY CHANGES.

NHTSA ODI 11121909

Working with the data? Download all 598 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Honda Civic Si verdict →