PS481

SUBJECT:
GROUP
Transmission
MODEL
All Models Equipped
with DCT
NUMBER
PS481
DATE
March 2017
DUAL CLUTCH TRANSMISSION (DCT)
CHARACTERISTICS
All models with a 1.6L Turbo engine may come equipped with a 7-speed Dual Clutch
Transmission (DCT), except the 2017MY~ Niro (DE) with a 1.6L Atkinson engine comes
equipped with a 6-speed Dual Clutch Transmission (DCT). This automatic transmission is
unlike the conventional automatic transmission found in the complete line up of Kia vehicles.
The new DCT improves fuel efficiency and can also provide a sportier feel. Certain aspects of
this technology may lead to customer concerns if they are unfamiliar with it. To help maximize
owner satisfaction on this new technology, Kia would like all dealership sales and service
personnel to be familiar with the characteristics of this new transmission.
Essentially, a DCT is an automated manual transmission. Unlike a conventional automatic
transmission, this transmission utilizes two separate clutches and gear sets: one for odd
gears, and one for even gears. The transmission control module (TCM) engages and
disengages the clutches automatically. Being an automated manual transmission, customers
may experience some characteristics not common in a traditional automatic transmission,
such as a shudder sensation.
This shudder sensation can be compared to what is felt when the driver of vehicle with a
manual transmission disengages the clutch when coming to a stop, and then engages it to
transmit power to the wheels. In vehicles equipped with a DCT, a similar sensation may be
felt under light acceleration from a stop, or at slow speeds (such as in stop and go traffic).
Keep this condition in mind as you test drive the DCT equipped vehicle. A well prepared
technician will be able to address customer questions by explaining these normal
characteristic concerns leading to a happy customer.
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In certain operating conditions, specific DCT related warning messages may appear on the
instrument cluster. It is important to understand these warning messages in order to address
potential customer concerns with this type of transmission.
Push Brake Pedal Warning
This warning message (or similar) may illuminate while attempting to keep the vehicle stationary
uphill utilizing the accelerator pedal, which will cause excess clutch slippage. When this
message appears, the TCM will also actuate the clutches to create a vibration feeling to warn
the driver. In order to prevent this message, customers should utilize the brake pedal when
stopping uphill.
Clutch High Temperature Warning
This message (or similar) may illuminate while driving in stop and go conditions uphill, which
can lead to excessive clutch slippage, thus increasing clutch temperature. To prevent damage,
the “Clutch High Temperature” warning message will be displayed on the instrument cluster.
When this message is displayed, customers may notice deterioration in shift quality such as
increased vibration or roughness. Initially, an audible warning and blinking of the gear indicator
will also occur 3 times. A sequential warning may follow shortly after, in which an audible
warning and gear indicator blinking will occur continuously. Should this condition occur, the
customer should safely pull over to the side of the road. Place the vehicle in park and idle the
engine until the message goes away.
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Clutch Over Heat Warning
If customer disregards the previous warning and clutch temperatures continue to increase, the
“Clutch Over Heat” (or similar) warning will appear. In this condition, the system will disengage
the clutches, preventing operation of the vehicle in order to protect the system from further
damage. A timer of approximately 20 minutes will then appear. Once the timer reaches 0,
clutch operation will be reestablished.
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