2008 Cadillac CTS Service and Repair Manual

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Factory-Grade Data

2008 Cadillac CTS 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.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Premium Sedan 4-Door
  • Base Sedan 4-Door
  • Luxury Sedan 4-Door

Engines covered

  • 3.6L 3564CC 217Cu. In. 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 Cadillac CTS Recalls & Complaints

NHTSA #10V24000004/06/2010Component: ELECTRICAL SYSTEM

GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE E

Consequence

IT IS POSSIBLE FOR THE HEATED WASHER MODULE TO IGNITE AND A FIRE MAY OCCUR.

Remedy

DEALERS WILL PERMANENTLY DISABLE AND REMOVE THE HEATED WASHER FLUID MODULE. AN UPDATED PAGE FOR THE

TSB #11023091

New Vehicle Monitoring Programs Section in IVH

TSB #11021792

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble

TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11019074

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019073

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019072

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11017783

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will nee

TSB #11017252

This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.

Showing the 8 most recent of 1139 technical service bulletins on file with NHTSA.

20240822Component: AIR BAGSCrash reported2 injured

Airbags did not deploy in a massive front end collision. That failure caused me physical injury which possibly would not have occurred had the airbags deployed. I don’t know how many 2008 Cadillac C

20220317Component: EXTERIOR LIGHTING:HEADLIGHTSCrash reported1 injured

The contact owns a 2008 Cadillac CTS. The contact stated that water leaks into the vehicle from the sunroof causing mold to develop inside the vehicle which caused a respiratory illness to the owner.

20220317Component: VISIBILITYCrash reported1 injured

The contact owns a 2008 Cadillac CTS. The contact stated that water leaks into the vehicle from the sunroof causing mold to develop inside the vehicle which caused a respiratory illness to the owner.

20150626Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNED A 2008 CADILLAC CTS. WHILE DRIVING APPROXIMATELY 70 MPH, A DEER JUMPED IN FRONT OF THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO THE DEER. THE AIR BAGS FAILED TO DEPLOY. THE

20130531Component: VEHICLE SPEED CONTROLCrash reported1 injured

TL* THE CONTACT OWNS A 2008 CADILLAC CTS. THE CONTACT STATED THAT WHILE DRIVING 5 MPH, THE VEHICLE SUDDENLY ACCELERATED WITHOUT WARNING. THE VEHICLE TRAVELED OVER A CURVE AND CRASHED INTO A TREE. THE

Showing the 5 most serious of 251 complaints filed with NHTSA.

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