1998 Kia Sephia Service Brakes, Hydraulic:foundation Components Problems

NHTSA component category: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS · data through 07/14/2026

68Service Brakes, Hydraulic:foundation Components complaints

13.8%Of all 491 complaints

#2Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How service brakes, hydraulic:foundation components ranks on this vehicle

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC76 · 15.5%

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS68 · 13.8%

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE67 · 13.6%

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR57 · 11.6%

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP46 · 9.4%

Share of the 491 complaints citing each category; one complaint can cite several. Full breakdown on the 1998 Kia Sephia overview page.

What owners report

“SINCE PURCHASED THE MV HAS BEEN IN SHOP FOR NUMEROUS (13+) PROBLEMS AND DEFECTS. MY CONCERN OVER SAFETY ISSUES HAS BEEN DISMISSED OR GIVEN MANY…”NHTSA complaint 709986 — filed 08/14/1999

“I HAVE FILED A FORMAL COMPLAINT WITHE BBB AUTO LINE. I HAVE A KIA 98 LS. IT HAS SCARED ME SERVAL TIMES THE GOES OUT…”NHTSA complaint 709107 — filed 07/24/1999

“WHEN BRAKES WERE APPLIED VEHICLE EXPERIENCED A LOUD NOISE AND THE VEHICLE ROLLED TO A STOP, THIS FAILURE OCCURED ON FOUR DIFFERENT OCCASIONS, REPAIRS WERE…”NHTSA complaint 547392 — filed 07/20/1999

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Service Brakes, Hydraulic:foundation Components complaints by year filed

Frequently asked questions

Does the 1998 Kia Sephia have service brakes, hydraulic:foundation components problems?

Service Brakes, Hydraulic:foundation Components is the #2 most-reported problem area on the 1998 Kia Sephia: 68 of 491 complaints on file (13.8%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 1998 Kia Sephia have in total?

491 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 33 involved a crash, 16 involved a fire, 19 reported injuries, and none reported deaths.

What does NHTSA's service brakes, hydraulic:foundation components category include?

NHTSA assigns each complaint to standard component categories; this page reports the SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.