1999 Kia Sephia Vehicle speed control Problems
- Complaints
- 7about this part
- Share
- 2%of 428 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the vehicle speed control of the 1999 Kia Sephia, 2% of the 428 complaints for this model year. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When driving and upon proceeding to stop applying the brake pedal, consumer heard a noise coming from the front end. Also, vibration in the front end after coming to a complete stop, the vehicle lugged forward. Also, frontal safety belts do not retract, causing the belt to be very loose . Consumer has contacted the dealer. Please provide any further details.”
NHTSA complaint #864875, filed 2000-07“Would be driving and vehicle stalled out. Then, would restart on its own. Cruise control remained unreliable. Brakes would not release cruise control when it was on. Took to dealership & mechanic replaced electrical wires. Also, exhaust system had holes in it & was leaking, and air conditioner was replaced due to compressor seizing up.”
NHTSA complaint #876924, filed 2000-12“Consumer states when accelerating the vehicle speed decreases instead of increasing. Replaced parts 4 times. Problem still occurs. Nlmvehicle has been repaired for wiring harness and sensor failure, the transmission is slipping, the transmission fluid is burnt and it is leaking fluid at the shift shaft (consumer was advised to replace transmission), the over drive light keeps flashing and the check engine light illuminates due to the hold unit not being applied.”
NHTSA complaint #8008117, filed 2002-04“While traveling on highway and upon depressing gas pedal intermittently vehicle would not gain speed. Dealer has been contacted nine times, and problem returned. Please provide further information.”
NHTSA complaint #861226, filed 2000-05Vehicle speed control: other model years
Other parts of the 1999 Kia Sephia
173 complaintsEngine cooling
88 complaintsTransmission and drivetrain
71 complaintsElectrical system
63 complaintsFuel system
49 complaintsAir bags
37 complaintsSteering
23 complaintsVisibility (wipers, defrost, mirrors)
19 complaintsBody and structure
17 complaintsSuspension
17 complaintsOther or unknown
15 complaintsSeat belts
13 complaints
← All problems reported for the 1999 Kia Sephia
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology