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Service bulletin 5NP-U3K4E-01

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10089408
Published by NHTSA2017-01-24
Manufacturer's number5NP-U3K4E-01
Manufacturer's date2016-12-01
NHTSA componentELECTRONIC STABILITY CONTROL (ESC)

NHTSA's summary

"THIS BULLETIN DESCRIBES THE PRELIMINARY PROCEDURE TO INSPECT THE LOT NUMBER OF THE ELECTRONIC STABILITY CONTROL (ESC) MODULE OF SOME SANTA FE (NC) AND TUCSON (TL) VEHICLES. PARTS FROM THE AFFECTED LOT NUMBER MAY HAVE DAMAGED BOLTS WHICH HOLD THE ECU TO THE SOLENOID BLOCK. VEHICLES WITH AFFECTED LOT NUMBER ESC MODULES SHOULD BE HELD (NOT RETAILED) UNTIL A FINAL SERVICE PROCEDURE IS PROVIDED ON A FUTURE TSB."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Driver assistance

Vehicles listed
HYUNDAI SANTA FE2017
HYUNDAI TUCSON2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
19-BE-011H-12019-12-16. Service bulletin. The Blind Spot Detection (BSD) or Blind-Spot Collision Warning (BCW) is a system that measures the speed of and distance from the following vehicles by using two magnetic wave radar sensors attached in the rear bumper. The BSD/BCW detects vehicles within the blind spot zone and gives off an alarm (visual and audible). The two magnetic radar sensors provide these functions for BSD/BCW: ? Senses other vehicles in the BSD/BCW zone and turns on the BSD/BCW warning lamp for the driver. The warning lamp starts blinking, along with an audible sound, when the driver turns on the turn signal lamp to enter the lane where another vehicle is driving.
19-BE-009H2019-07-01. Service bulletin. This bulletin provides information for troubleshooting of the Blind-Spot Collision Warning (BCW/BSD) system whenever it exhibits Diagnostic Trouble Code (DTC) C120B/D or C160A.
5NPL5W5G022017-09-22. Service bulletin. This bulletin describes the service procedure to inspect the lot number of the electronic stability control (ESC) module of certain Santa Fe (NC) and Tucson (TL) vehicles. Parts from the affected LOT number may have damaged bolts which hold the ECU to the solenoid block. Vehicles with affected LOT number ESC modules must be inspected for damaged bolts. If the bolts are intact, they must be replaced. If the bolts are damaged, the HECU assembly must be replaced.
5NP-U2H9N-082017-08-15. Service bulletin. This bulletin describes the procedure to update the Traction Control System (TCS) logic on some 2017-2018MY Santa Fe Sport (AN) 2.0T and Santa Fe (NC) 3.3L vehicles. This update helps reduce unnecessary TCS engagement during low speed / dry road acceleration.
5NP-M4L8P-032017-08-10. Service bulletin. This bulletin describes the service procedure to inspect the lot number of the electronic stability control (ESC) module of certain Santa Fe (NC) and Tucson (TL) vehicles. Parts from the affected LOT number may have damaged bolts which hold the ECU to the solenoid block. Vehicles with affected LOT number ESC modules must be inspected for damaged bolts. If the bolts are intact, they must be replaced. If the bolts are damaged, the HECU assembly must be replaced.