Service bulletins for the 2011 Hyundai Equus
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.
61 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Transmission and driveline are shown. Show all
| 24-AT-002H | 2024-04-16. Service bulletin. POWER TRAIN. This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2. |
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| 21-AT-018H | 2021-12-09. Service bulletin. POWER TRAIN. This bulletin describes the procedure to replace the 35R and 4&OD solenoids for a shift flare and/or harsh shift during the 2~3, 3~4 or 4~5 upshift. |
| 20-AT-016H | 2020-05-07. 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: |
| 19-FL-003H | 2019-05-20. 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. |
| 5NP-B6E2P-10 | 2016-10-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AXLE ASSEMBLY. "THE PCM OR TCM CONTAINS LOGIC TO ADJUST SOLENOID DUTY AND LINE PRESSURE AS NEEDED TO COMPENSATE FOR NORMAL CLUTCH WEAR OVER THE LIFE OF THE TRANSAXLE. THIS BULLETIN PROVIDES THE PROCEDURES NECESSARY TO RESET (ERASE) AND RELEARN THE PCM/TCM ADAPTIVE VALUES. AFTER THE FOLLOWING REPAIRS HAVE BEEN COMPLETED, THE PCM/TCM ADAPTIVE VALUES MUST BE RESET IN ORDER TO PROVIDE OPTIMUM SHIFT QUALITY. IF THE PROCEDURE IS NOT PERFORMED, THE TRANSMISSION MAY EXPERIENCE A SHIFT FLARE OR HARSH SHIFT. H REPLACE AUTOMATIC TRANSAXLE OR PCM/TCM H REPROGRAM OR EXCHANGE A PCM/TCM FROM ANOTHER VEHICLE" |
| TSB-11-AT-017 | 2011-11-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HYUNDAI: FOLLOW THE REPAIR PROCEDURES REGARDING THE TRANSMISSION SOLENOIDS AND SENSOR AND REPLACE RELATED PART. *PE |
| TSB-11-AT-015 | 2011-11-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HYUNDAI: SPEED SENSOR PART ON VEHICLE IS BEING REPLACED BY FOLLOWING REPAIR PROCEDURES AND TRANSMISSION IS NOT BEING REPLACED. *PE |
| SB-10-AT-009-1 | 2011-05-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HYUNDAI: ESC OFF LIGHT IS ON WITH TWO POSSIBLE FAULT CODES. THERE IS ALSO A HARSH SHIFT OUT OF PARK OR NO SHIFT OUT OF PARK. *RM |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.