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Forward collision avoidancePart report

2017 Kia Optima Forward collision avoidance Problems

Complaints
8about this part
Share
3%of 257 total for the year
Median mileage
39,715miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the forward collision avoidance of the 2017 Kia Optima, 3% of the 257 complaints for this model year. Where a mileage was given, the median is 39,715 miles. 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.

“My vehicle is experiencing engine issues consistent with the known Theta II GDI engine defects — including rod bearing failure piston rings engine stalling, I understand that Kia has offered extended warranty coverage through the engine defect settlement, provided the Knock Sensor Detection System (KSDS) update was installed before failure. I am unsure whether this update has been applied and would like to confirm my eligibility. …”

NHTSA complaint #11669359, filed 2025-06

“Twice while driving in rain my front end collision warning has taken control from me and slammed on the brakes bringing my car to a full stop. There was no vehicle or object in front of me either time. The second time I narrowly missed being rear ended.”

NHTSA complaint #11547008, filed 2023-09

“I was driving with an SUV in front of me at 18-wheeler in front of them. This is on a road where the speed limit is 65 however there's a section on 301 where there's a traffic light. All three vehicles came to a slow normal stop and the adaptive cruise control was doing a good job of slowing the vehicle down without my input. But the SUV when we were at about stopping speed but had not yet come to a complete stop, the SUV switched to the left lane. …”

NHTSA complaint #11486092, filed 2022-09

“On 6 June 2022 I was driving Eastbound Interstate 80 passing Fairfield, CA. Traffic was moderate, average traffic speed 65. The Kia’s Adaptive Cruise was enabled and set to the maximum amount of safe distance. I recall the car directly in front of me changed lanes to pass a truck towing a trailer. I remember the Kia began to accelerate and I couldn’t turn the wheel. Next memory was opening my eyes to the dust smoke of deployed air bags. I lost consciousness likely due to the sudden impact and air bags deployed. I was taken to a Fairfield hospital by ambulance where I spent 4 days. …”

NHTSA complaint #11534208, filed 2023-07

“Engine needed to be replaced as part of the recall for knock, however they said because the repair was done on a subsequent work order and the first one was for a failed AEB module that none of the repairs are covered. I'm out over $13,000 for what should have been warrantied”

NHTSA complaint #11545834, filed 2023-09

Related service bulletins

Forward collision avoidance: other model years

YearComplaintsShare of year
202053%
20193617%
201810%
201783%
201651%
201591%
201410%
201350%
201210%
201110%
201011%

Other parts of the 2017 Kia Optima

Engine
165 complaints
Other or unknown
33 complaints
Electrical system
25 complaints
Fuel system
22 complaints
Transmission and drivetrain
21 complaints
Exterior lighting
15 complaints
Vehicle speed control
13 complaints
Steering
11 complaints
Engine cooling
8 complaints
Seat belts
8 complaints
Brakes
6 complaints
Air bags
5 complaints

← All problems reported for the 2017 Kia Optima

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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