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Technical
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
Accent (RB)
2018~
Accent (HC)
2011
Azera (TG)
2012~17
Azera (HG)
2011~16
Elantra (MD/UD)
2017~
Elantra (AD/ADa) 2.0L
2013~14
Elantra Coupe (JK)
2013~17
Elantra GT (GD)
2018~
Elantra GT (PD) 2.0L
2018~
Kona (OS) 2.0L
2007~12
Santa Fe (CM)
2013~18
Santa Fe Sport (AN)
2013~
Santa Fe (NC)
2011~14
Sonata (YF)
2015~
Sonata (LF) 2.0T/2.4L
2010~15
Tucson (LM)
2013~15
Veloster Turbo (FS)
2019~
Veloster (JS) 2.0L
2011~16
Equus (VI) 4.6L/5.0L
2009~14
Genesis Sedan (BH) 3.8L/4.6L/5.0L
2015~16
Genesis Sedan (DH) 3.8L/5.0L
2010~16
Genesis Coupe (BK) 2.0T/3.8L
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
Service Bulletin
GROUP
AUTOMATIC
TRANSMISSION
DATE
MAY, 2018
NUMBER
18-AT-008
MODEL
SEE APPLICABLE
MODELS BELOW
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Summary of Contents for Hyundai 18-AT-008
- Page 1 GROUP NUMBER AUTOMATIC 18-AT-008 TRANSMISSION DATE MODEL Service Bulletin Technical SEE APPLICABLE MAY, 2018 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.
- Page 2 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. TSB #: 18-AT-008 Page 2 of 4...
- Page 3 For best results, use the entire contents of the aerosol can. NOTICE 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. TSB #: 18-AT-008 Page 3 of 4...
- Page 4 NOTICE Collect and dispose of any excess fluid in accordance with local regulations. 5. Reconnect the cooler hoses to the transaxle and secure with clamps. TSB #: 18-AT-008 Page 4 of 4...
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