Hyundai 18-AT-008 Reference manual

Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
Technical Service Bulletin
GROUP
NUMBER
AUTOMATIC
TRANSMISSION
18-AT-008
DATE
MODEL
MAY, 2018
SEE APPLICABLE
MODELS BELOW
AUTOMATIC TRANSAXLE ATF COOLER FLUSHING
This TSB supersedes TSB 12-AT-019 to include additional vehicles.
DESCRIPTION:
Whenever an automatic transaxle is replaced, the ATF cooler must be flushed to remove
contaminants such as metal particles and clutch material. Failure to flush or improper flushing of the
ATF cooler may result in severe damage to the replacement transaxle.
This TSB applies to transmissions with the ATF cooler in the radiator or the ATF warmer/cooler
attached to the transmission. This TSB does not apply to dual-clutch transmissions.
YF HEV and LF HEV remanufactured transmissions have a new ATF warmer/cooler installed and do
not need to be flushed.
Applicable Vehicles:
2012~17
2018~
2011
2012~17
2011~16
2017~
2013~14
2013~17
2018~
2018~
2007~12
2013~18
2013~
2011~14
2015~
2010~15
2013~15
2019~
2011~16
2009~14
2015~16
2010~16
Accent (RB)
Accent (HC)
Azera (TG)
Azera (HG)
Elantra (MD/UD)
Elantra (AD/ADa) 2.0L
Elantra Coupe (JK)
Elantra GT (GD)
Elantra GT (PD) 2.0L
Kona (OS) 2.0L
Santa Fe (CM)
Santa Fe Sport (AN)
Santa Fe (NC)
Sonata (YF)
Sonata (LF) 2.0T/2.4L
Tucson (LM)
Veloster Turbo (FS)
Veloster (JS) 2.0L
Equus (VI) 4.6L/5.0L
Genesis Sedan (BH) 3.8L/4.6L/5.0L
Genesis Sedan (DH) 3.8L/5.0L
Genesis Coupe (BK) 2.0T/3.8L

AUTOMATIC TRANSAXLE OIL COOLER FLUSHING
TSB #: 18-AT-008
Page 2 of 4
SUBJECT:
PARTS INFORMATION:
PART NUMBER
DESCRIPTION
00232-19021
Transmission Cooler Flush
Warranty Information: Labor time for flushing the oil cooler is included in the time to replace the
transmission.
ATF cooler in radiator
ATF warmer/cooler
Wear safety glasses and rubber gloves when flushing the ATF cooler.
Use transmission cooler flush only with adequate ventilation.
Avoid contact with eyes and skin.
Do not breathe vapors or spray mist.
WARNING
The ATF cooler in the radiator or the ATF warmer/cooler (if equipped) must be
flushed after replacing the transmission.
NOTICE

AUTOMATIC TRANSAXLE OIL COOLER FLUSHING
TSB #: 18-AT-008
Page 3 of 4
SERVICE PROCEDURE
1.
Mark the hoses with tape or parts tags so they
can be reconnected correctly.
Disconnect the oil cooler inlet and outlet hoses
from the oil cooler tubes.
2.
Insert the nozzle of the aerosol can to either
hose and secure it with a hose clamp. Position
the other hose so that it discharges into a waste
container.
Remove the protective cap. Hold the can
upright and press firmly on the button to release
the solution. Flush for 15-20 seconds until clear
liquid comes from the outlet hose.
3.
Reverse the hoses and flush in the other
direction until clear liquid comes from the outlet
hose. For best results, use the entire contents
of the aerosol can.
Clear liquid must flow freely in both
directions through the ATF cooler. If
not, the ATF cooler is clogged with
debris and must be replaced.
NOTICE
The procedure is the same for both
ATF coolers.
NOTICE

AUTOMATIC TRANSAXLE OIL COOLER FLUSHING
TSB #: 18-AT-008
Page 4 of 4
SUBJECT:
4.
When the flush has been expelled, turn the can
upside down and blow any remaining liquid out
of the cooler.
5.
Reconnect the cooler hoses to the transaxle and secure with clamps.
Collect and dispose of any excess fluid
in accordance with local regulations.
NOTICE