2008 Hyundai Sonata Service and Repair Manual

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Factory-Grade Data

2008 Hyundai Sonata 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

  • GL Sedan 4-Door
  • GLS Sedan 4-Door
  • SE Sedan 4-Door
  • Limited Sedan 4-Door

Engines covered

  • 2.4L 2359CC l4 GAS DOHC Naturally Aspirated
  • 3.3L 3342CC V6 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

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Vehicle Safety Data

2008 Hyundai Sonata Recalls & Complaints

NHTSA #13V35400012/08/2013Component: SUSPENSION:REAR

Hyundai is recalling certain model year 2006-2010 Sonata vehicles manufactured March 1, 2005, through January 21, 2010; and model year 2006-2011 Azera vehicles manufactured September 27, 2005, through

Consequence

Control arm separation may suddenly change the rear wheel alignment, affecting the handling of the v

Remedy

Hyundai will notify owners, and dealers will repair or replace the crossmember assembly. The recall

NHTSA #09E01200007/04/2009Component: EXTERIOR LIGHTING

SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF

Consequence

DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

Remedy

SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S

NHTSA #13V11300001/04/2013Component: EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH

Hyundai Motor Company (Hyundai) is recalling certain model year 2006-2009 Accent, model year 2007-2011 Azera, Sonata and Sante Fe,2006-2011 Tucson, 2009-2011 Elantra Touring, 2007-2010 Elantra, 2008-2

Consequence

Failure to illuminate the stop lamps during braking or inability to disengage the cruise control cou

Remedy

Hyundai will notify owners, and dealers will replace the stop lamp switch, free of charge. The safe

TSB #11032523

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

TSB #11032522

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),

TSB #11025476

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

TSB #10251285

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

TSB #10247189

This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.

TSB #10235566

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

TSB #10230904

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

TSB #10217258

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. Th

Showing the 8 most recent of 53 technical service bulletins on file with NHTSA.

20140729Component: AIR BAGSCrash reported3 injured

TL* THE CONTACT OWNS A 2008 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, THE CONTACT CRASHED INTO ANOTHER VEHICLE AS THE AIRBAGS FAILED TO DEPLOY. A POLICE REPORT WAS FI

20130524Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNS A 2008 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE WAS MANEUVERED ABRUPTLY TO AVOID AN OBJECT AND SWAYED OFF THE ROAD INTO A DITCH, CR

20211129Component: UNKNOWN OR OTHERCrash reported1 injured

I put the car in reverse while parked in a parking lot, when I put the car in reverse, the car took off at a high rate of speed striking one vehicle and continued at a high speed in reverse about 20 o

20211129Component: VEHICLE SPEED CONTROLCrash reported1 injured

I put the car in reverse while parked in a parking lot, when I put the car in reverse, the car took off at a high rate of speed striking one vehicle and continued at a high speed in reverse about 20 o

20211129Component: SERVICE BRAKESCrash reported1 injured

I put the car in reverse while parked in a parking lot, when I put the car in reverse, the car took off at a high rate of speed striking one vehicle and continued at a high speed in reverse about 20 o

Showing the 5 most serious of 554 complaints filed with NHTSA.

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