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Vehicle speed controlPart report

2003 Kia Optima Vehicle speed control Problems

Complaints
2about this part
Share
1%of 141 total for the year
Median mileage
75,504miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 2003 Kia Optima, 1% of the 141 complaints for this model year. Where a mileage was given, the median is 75,504 miles.

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.

“It took 3-4 attempts to get the consumer's 2003 Kia Optima to start and the consumer also had to pump the gas pedal. While driving 45 MPH the vehicle accelerated suddenly without warning. While attempting to accelerate from a stop the vehicle would not move. The consumer had to pump the gas pedal in order to get the vehicle to accelerate. These problems have been present since the date of purchase.”

NHTSA complaint #10165870, filed 2006-08, 75,504 miles

Vehicle speed control: other model years

YearComplaintsShare of year
202064%
2019105%
2018104%
2017135%
2016294%
2015364%
2014214%
2013393%
2012404%
2011193%
201068%
2009119%
200875%
200753%
200675%
200452%
200321%
200222%
200175%

Other parts of the 2003 Kia Optima

Latches, locks and linkages
53 complaints
Electrical system
25 complaints
Body and structure
25 complaints
Air bags
17 complaints
Fuel system
12 complaints
Suspension
9 complaints
Transmission and drivetrain
8 complaints
Engine cooling
7 complaints
Other or unknown
7 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Brakes
4 complaints
Exterior lighting
3 complaints

← All problems reported for the 2003 Kia Optima

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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