2015 Kia Optima engine NHTSA complaints: Vehicle Speed Control

NHTSA — Vehicle Speed Control Problems


really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
18,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Kia Optima engine problems

engine problem

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2015 Kia Optima Owner Comments

problem #4

Nov 092016


  • 38,000 miles


The contact owned a 2015 Kia Optima. While attempting to drive the vehicle, it accelerated without warning. As a result, the contact crashed into a guide wire and a tree. The contact sustained bruises to the left arm and lower back that required medical attention. A police report was filed. The vehicle was towed to an insurance collision center. The vehicle was destroyed. The manufacturer was not made aware of the failure. The approximate failure mileage was 38,000. The VIN was not available.

- Houston, TX, USA

problem #3

Sep 092016


  • 20,000 miles
The contact owns a 2015 Kia Optima. While driving 3 mph, the vehicle accelerated rapidly on its own and crashed into a brick porch. The air bags did not deploy. A police report was filed and there were no injuries. The vehicle was towed to a repair shop. The manufacturer was not made aware of the issue. The failure mileage was 20,000.

- Brookhaven, MS, USA

problem #2

Apr 082016


  • 14,000 miles
Recurring, intermittent lack of engine response to pressing the accelerator; particularly noticeable when attempting to turn left at a break in oncoming traffic. Engine acts as if stalling, then recovers after a second or two delay. Kia dealer service advises that this is a characteristic of the vehicle and not adjustment is possible to fix the problem. Vehicle may be stationary or moving a less than 5 mph when this occurs. Problem is intermittent and not apparently related to fuel or climatic conditions. Results in driver uncertainty in any given turning situation whether there is sufficient time to make the turn; several near crash episodes have occurred where lack of engine response to power demand caused the vehicle to slow rather then accelerate. Condition occurs most frequently during city driving, but may also occur at highway turning situations where the vehicle has stopped before attempting a turn.

- Albuquerque, NM, USA

problem #1

Aug 022014


  • miles
The contact owns a 2015 Kia Optima. The contact stated that the vehicle hesitated to accelerate and the engine RPM's increased. The failure occurred on numerous occasions. The vehicle was taken to a dealer on several occasions but the failure was unable to be replicated. The manufacturer was notified of the failure. The failure mileage was not available.

- Milford, PA, USA

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