Which parts fail
Components named in complaints (front, side and curtain air bags, sensors and inflators).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 1998 Kia Sephia owners, lightly cleaned up (personal details are redacted by NHTSA).
While driving 60 MPH the vehicle was involved in a frontal collision. The dual air bag did not deploy upon impact. The consumer sustained bruising from the seat belt. Please provide additional information.
I was in a very serious accident on August 7th, at 10:30 am while driving in the middle lane of the mass pike rt. 90 framingham, mass. I thought my Kia sehpia was in accelent condition, but while I was driving in the middle lane, the steering wheel and column started shaking and I could not steer the vehicle. I tried to keep the vehicle in the lane but could not control the steering. The car screeched and was pulling to the right. To my immediate right was a large ryder rental truck, I braced myself and hit the left front end of the truck. The rest is a blur, I spun around and the rear of my car hit the guard rail and I fortunately stopped in the breakdown lane. It happened so fast, but what is most upsetting, I don't know what happened. I'm not sure if it was a steering column problem or a tire problem. All I know is, I was driving safetly and then my car when out off control. …
The airbag in my daughters Kia Sephia 1998 passenger side only deployed while she was sitting at a red light. There was no accident and no reason for the airbag to go off. Took to dealship for review and was told that the expert looked at the car and said there is nothing they can do and no idea why it happen. Then continued to say that someone could have done something wrong to the car and we would never no, but they were not going to spend any more time or money to find out what really May have caused this. My daughter, the driver, was slightly injured and now is affraid while driving or riding in a car.
Tl contact owned a 1998 Kia Sephia. A relative was driving the consumers vehicle and he saw his brother driving in the opposite direction. He swerved to play a game with his brother, but instead he lost control of the vehicle and crashed head on into the other vehicle. The drivers air bag failed to deploy, however the passenger air bag deployed and there were no passengers. Updated 04/30/08. Lj the consumers also owns a 2000 Toyota tacoma which was also involved in the accident and the drivers air bag did not deploy. Updated
While driving on old route 50 another vehicle cut across in front of consumer's vehicle. Consumer was not able to stop, and hit vehicle broadside. Neither airbag deployed. Contacted manufacturer, and was told nothing was wrong. Since the accident, airbags have been on all the time. Also, had brakes replaced 5 or 6 times. When applying brakes the steering wheel shakes. Also, done an alignment.
Consumer was traveling during dry weather conditions at 40mph when his vehicle rearended another vehicle, and frontal airbags didn't deploy. There were no injuries. Consumer just received the vehicle back from dealer, and wants a second opinon.
While driving at 25 mhp and trying to avoid another vehicle from hitting consumer's vehicle, consumer lost control of the vehicle and hit some trees, brushes and a big boulder. Upon impact, driver's side air bag didn't deploy.
While driving on main street, traveling 15mph, traffic was slow, and vehicle in front stopped suddenly, causing consumer to rearend vehicle in front. Upon impact, neither airbag deployed. Hasn't contacted dealer or manufacturer.
Consumer was traveling about 35mph on the highway and another vehicle cut into consumer's lane, and veered into consumer's vehicle broadside. Upon impact, driver's side airbag didn't go off. Also airbag light was always on.
While driving in the snow made a turn that left vehicle looking to oncoming traffic, and had head-on collision with another vehicle. Upon impact, air bags did not deploy, causing injuries to consumer and child in vehicle.
Airbag complaints in other Sephia years
Frequently asked questions
How common are airbag problems on the 1998 Kia Sephia?
NHTSA has 31 complaints about the air bags of the 1998 Kia Sephia, 6% of the model year's 491 complaints. The component named most often is frontal (21 mentions).
Is there a recall for 1998 Kia Sephia airbag problems?
No. NHTSA lists no air bags recall for the 1998 Kia Sephia, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 1998 Kia Sephia airbag problems start?
Half of the complaints with a recorded mileage happened before about 40,000 miles.
Is it dangerous?
Owners linked 20 crashes, 0 fires and 10 injuries to air bags problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.