2012 Hyundai Equus service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- Ultimate Sedan 4-Door
- Signature Sedan 4-Door
Engines covered
- 5.0L 5038CC V8 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Hyundai Motor America (Hyundai) is recalling certain model year 2012 Genesis vehicles manufactured August 1, 2011, to April 30, 2012, and 2011-2013 Equus vehicles manufactured July 10, 2011, to June 1
Inoperative wipers during inclement weather can decrease driver visibility, increasing the risk of a
Hyundai will notify owners, and dealers will replace the wiper motor cover and seal, free of charge.
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivers-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These infla
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driverside airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN),
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 th
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.
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
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
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 becom
In certain areas, a vehicles 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 exterio
Showing the 8 most recent of 63 technical service bulletins on file with NHTSA.
FOLLOWING A SLIP ON THE ROAD I AM THE VICTIM OF AN ACCIDENT ON THE EDGE OF A HYUNDAI SANTA FE. THE CAR STRUCK THE MOUNTAIN, BUT THE AIRBAGS FAILED TO ACTIVATE IN THE ACCIDENT RESULTING IN A FRONTAL IM
FROM THE DESK OF LMI'S EXECUTIVE DIRECTOR: [XXX] I PURCHASED 2012 EQUUS ON MARCH 7, 2012 WITH 108,216 MILES. THE CARS SUSPENSION STARTED GOING BAD AS OF LAST WEEK. I BROUGHT THE CAR BACK ON MARC
TL* THE CONTACT OWNS A 2012 HYUNDAI EQUUS. WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE JOLTED CONTINUOUSLY AND SHIFTED INDEPENDENTLY INTO ANOTHER GEAR. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE
MY VEHICLE SWAYS LIKE A BOAT SIDE TO SIDE NO MATTER MY SPEED, BUT ON THE HIGHWAY IT ALMOST FEELS LIKE I'M LOSING CONTROL. I HAVE TAKEN THE VEHICLE TO THE DEALERSHIP AND AFTER HAVING IT FOR 4 WEEKS THE
AFTER A FEW MONTHS OF PURCHASING CAR THE ECS LIGHT STARTED ILLUMINATING WHICH IN RETURN GAVE CAR A SPONGY, BOUNCY RIDE ETC., HEIGHT FUNCTION WOULD NOT WORK. AFTER REPAIRS WERE DONE 1ST TIME AROUND JU
