# 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 bulletins from NHTSA, as of 2026-10-19.

- [26\-EM\-015H TSB](/bulletins/11038456.md), 2026-10-13, Service bulletin: ENGINE. Certain vehicles equipped with internal combustion engines may exhibit higher\-than\-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.
- [DTN DL](/bulletins/11032523.md), 2026-05-08, Other: AIR BAGS. The National Highway Traffic Safety Administration \(NHTSA\) has identified the presence of substandard and dangerous driver’s\-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. \(DTN\). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non\-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non\-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self\-inspection by vehicle owners and recommends inspection by trained technicians.
- [DTN DCS](/bulletins/11032522.md), 2026-05-08, Other: AIR BAGS. The National Highway Traffic Safety Administration \(NHTSA\) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. \(DTN\), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.
- [25\-BD\-012H TSB](/bulletins/11025476.md), 2025-11-12, Service bulletin: EXTERIOR LIGHTING. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp \(DRL\), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
- [24\-AT\-002H](/bulletins/10253275.md), 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.
- [24\-BD\-001H](/bulletins/10251285.md), 2024-03-05, Service bulletin: VISIBILITY; VISIBILITY/WIPER. This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.
- [23\-EM\-005H](/bulletins/10247189.md), 2023-12-15, Service bulletin: ENGINE AND ENGINE COOLING. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
- [23\-BD\-007H](/bulletins/10235566.md), 2023-05-04, Service bulletin: STRUCTURE:BODY. Hyundai applies a Paint Protection Film \(PPF\) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint.
- [23\-01\-034H](/bulletins/10235526.md), 2023-05-03, Service bulletin: STRUCTURE. In certain areas, a vehicle’s underbody may exhibit corrosion due to road\-salt usage. As a preventative measure, a cavity wax coating is applied to the internal surfaces of underbody components and an undercoating spray is applied to exterior surfaces of specified underbody components. The service campaign describes the procedure to perform this preventative service on certain 2009\-2014MY Genesis Sedan \(BH\), 2011\-2016MY Equus \(VI\), and 2010\-2016MY Genesis Coupe \(BK\) vehicles.
- [23\-01\-034H](/bulletins/10235525.md), 2023-05-03, Service bulletin: STRUCTURE. In some areas, a vehicle’s underbody may exhibit corrosion due to road salt usage. As a preventative measure, cavity wax coating is applied to the internal surfaces of underbody components, and an undercoating spray is applied to the bottom exterior surfaces of specified underbody components. This bulletin describes the procedure to perform this preventative service on certain Genesis Sedan \(BH\), Equus \(VI\), and Genesis Coupe \(BK\) vehicles.
- [23\-BD\-002H](/bulletins/10230904.md), 2023-02-02, Service bulletin: VISIBILITY. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp \(DRL\), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
- [22\-GI\-006H](/bulletins/10217258.md), 2022-08-05, Service bulletin: TIRES. Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 \(FMVSS 110\) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver\-side B\-pillar within 25mm \(1 inch\) of the original tire placard.
- [22\-EM\-010H](/bulletins/10217251.md), 2022-08-05, Service bulletin: ENGINE AND ENGINE COOLING. Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub\-assembly replacement.
- [TXXP DBP](/bulletins/10213727.md), 2022-06-10, Service bulletin: SERVICE BRAKES, HYDRAULIC; EQUIPMENT. The warranty coverage for the hydraulic electronic control unit \(HECU\) for certain 2009\-12 Genesis \(BH\) and 2011\-12 Equus \(VI\) vehicles for repairs and replacement has been extended to 15 years with unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
- [22\-BR\-001H\-1](/bulletins/10213723.md), 2022-06-10, Service bulletin: SERVICE BRAKES, HYDRAULIC. The warranty coverage for the hydraulic electronic control unit \(HECU\) for certain Genesis \(BH\) and Equus \(VI\) vehicles for repairs and replacement has been extended to 15 years with unlimited miles from the date of original retail delivery or date of first use, and is valid for original and subsequent owners.
- [22\-BR\-001H](/bulletins/10210203.md), 2022-04-08, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). The warranty coverage for the hydraulic electronic control unit \(HECU\) for certain Genesis \(BH\) and Equus \(VI\) vehicles for repairs and replacement has been extended to 15 years with unlimited miles from the date of original retail delivery or date of first use, and is valid for original and subsequent owners.
- [22\-01\-013H](/bulletins/10208866.md), 2022-03-08, Service bulletin: EQUIPMENT:OTHER:LABELS; SERVICE BRAKES, HYDRAULIC; EQUIPMENT. The brake fluid specifications labeled on the master cylinder reservoir cap and in the vehicle owner’s manual require revision to indicate DOT 4 brake fluid only. This bulletin describes the procedure to replace the master cylinder reservoir cap and apply a sticker to the owner’s manual with the revised brake fluid specification.
- [21\-AT\-018H](/bulletins/10204249.md), 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.
- [21\-BE\-003H\-1](/bulletins/10196577.md), 2021-06-10, Service bulletin: STEERING; AIR BAGS. The warranty coverage for the clock spring has been extended to 15 years with unlimited mileage from the date of original retail delivery or date of first use, whichever occurs first. This warranty coverage applies to both the original and subsequent owners. Refer to the warranty and service parts information outlined in this bulletin whenever clock spring replacement is required.
- [21\-EM\-004H](/bulletins/10190044.md), 2021-04-07, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
- [21\-BR\-002H](/bulletins/10190038.md), 2021-04-07, Service bulletin: SERVICE BRAKES; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides best practice recommendations when performing brake service procedures.
- [21\-EM\-003H](/bulletins/10189989.md), 2021-04-06, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
- [20\-BR\-002H](/bulletins/10183963.md), 2020-12-08, Service bulletin: SERVICE BRAKES. This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
- [20\-SS\-004H](/bulletins/10183960.md), 2020-12-08, Service bulletin: WHEELS; TIRES. This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the “Tire Balance Data Sheet” must be fully completed including imbalance and Road Force Variation \(RFV\) data. The Data Sheet can be found at the end of this bulletin.
- [20\-BD\-014H](/bulletins/10178175.md), 2020-08-07, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EXTERIOR LIGHTING. This bulletin provides information regarding condensation related to moisture accumulation in the headlamp, rear combination lamp, daytime running lamp \(DRL\), or fog lamp. The TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes, or during normal driving operation.

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