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Service bulletins for the 2019 Genesis G90

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.

40 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
21-AT-015G2024-04-11. Service bulletin. POWER TRAIN. This TSB provides a procedure to diagnose and repair a transmission for the following Incorrect Ratio DTC (transmission clutch slipping more than 200 rpm in gear).
19-AT-014G2024-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This bulletin provides a procedure to diagnose an 8-speed automatic transaxle with a harsh and/or delayed shift.
19-AT-007G2024-04-11. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. This bulletin provides a procedure to transfer oil pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift quality. • Before replacing an automatic transmission: Input the data into the TCU using the GDS. • Before replacing a TCU: Back up the oil pressure data from the old TCU into the GDS and then transfer the data to the new TCM.
21-AT-012G2024-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This bulletin provides a procedure to transfer oil pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift quality. • Before replacing an automatic transmission (Pages 2~3): Input the data from the new transmission into the TCU using the GDS. • Before replacing a TCU (Pages 4~6): Back up the oil pressure data from the old TCU into the GDS and then transfer the data to the new TCM.
19-AT-023G2024-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each clutch in the transmission. If the vehicle fails the stall test, replace the transmission. PASS: Stall speed is between 1700~2900 rpm (See shop manual for stall speed). FAIL: Engine revs to redline limit (6,000~6,500 rpm). If so, replace the transmission.
19-AT-012G2024-04-11. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear).
19-AT-008G2024-04-11. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. When servicing a vehicle with a “Check Engine light” and any of the DTCs listed below, follow the Service Procedure to replace the related solenoid and E-module or park position switch.
23-AT-007G2023-07-01. Service bulletin. POWER TRAIN. When servicing an 8-speed automatic transmission vehicle with a “Check Engine light” and any of the DTCs listed below, follow the Service Procedure and, if necessary, replace the E-module.
20-AT-016H2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
20-AT-013HG2020-05-07. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Certain Genesis G80 and G90 vehicles may experience the Shift By Wire (SBW) system slipping into Neutral when shifting from Reverse to Drive or Drive to Reverse. Replace the electronic shifter with a new shifter that has a production date of 6/2/17 or newer to resolve this condition.
19-FL-003H2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.