2015 Cadillac CTS Service and Repair Manual

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Factory-Grade Data

2015 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
  • V Coupe 2-Door
  • Base Sedan 4-Door
  • Performance Sedan 4-Door
  • Vsport Sedan 4-Door
  • Vsport Premium Sedan 4-Door
  • Luxury Sedan 4-Door

Engines covered

  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged
  • 3.6L 3564CC 217Cu. In. V6 FLEX DOHC Naturally Aspirated
  • 3.6L 3564CC 217Cu. In. V6 GAS DOHC Naturally Aspirated
  • 6.2L 6162CC 376Cu. In. V8 GAS OHV Supercharged
  • 3.6L 3564CC 217Cu. In. V6 GAS DOHC Turbocharged

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

2015 Cadillac CTS Recalls & Complaints

NHTSA #15V35800009/06/2015Component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

General Motors LLC (GM) is recalling certain model year 2015 Cadillac ATS and CTS vehicles. The affected vehicles have a bracket between the brake pedal assembly and the rod that actuates the brakes

Consequence

If the bracket fractures, the driver would not be able to apply the brakes, increasing the risk of a

Remedy

GM will notify owners, and dealers will inspect the vehicle and replace any affected bracket, free o

NHTSA #18V59500007/09/2018Component: SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER

General Motors LLC (GM) is recalling certain 2014-2016 Cadillac CTS vehicles, equipped with heated front seats. The flexible heating mats in the front seats may be damaged over time, resulting in the

Consequence

In cold ambient temperatures, the seat heaters in these vehicles can turn on automatically when the

Remedy

GM will notify owners, and dealers will recalibrate the body control module, disabling the automatic

TSB #11030974

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

TSB #11030092

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

TSB #11030091

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11027601

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11026104

This service bulletin provides information on Tire Sidewall Irregularities.

TSB #11026017

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

TSB #11025755

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the s

TSB #11024485

The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

Showing the 8 most recent of 1778 technical service bulletins on file with NHTSA.

20181011Component: SERVICE BRAKESCrash reported

I HAD ADAPTIVE CRUISE ON, WAS AT A STOP LIGHT, SO ADAPTIVE STOPPED, THE TRUCK IN FRONT OF ME MOVED BECAUSE THE LIGHT TURNED GREEN, SO TO ENGAGE THE CRUISE I GENTLY GAVE IT GAS AND I FELT THE CRUISE KI

20181011Component: VEHICLE SPEED CONTROLCrash reported

I HAD ADAPTIVE CRUISE ON, WAS AT A STOP LIGHT, SO ADAPTIVE STOPPED, THE TRUCK IN FRONT OF ME MOVED BECAUSE THE LIGHT TURNED GREEN, SO TO ENGAGE THE CRUISE I GENTLY GAVE IT GAS AND I FELT THE CRUISE KI

20180210Component: SERVICE BRAKESCrash reported

WENT TO PULL INTO A PARKING SPOT, HIT THE BRAKE, THE CAR SPED UP HITTING ANOTHER PARKED CAR. I HAD A PROBLEM YESTERDAY, PUT CAR IN CRUISE CONTROL(50 MPH) ON THE HIGHWAY, WENT TO BRAKE TO TURN, CRUISE

20180210Component: VEHICLE SPEED CONTROLCrash reported

WENT TO PULL INTO A PARKING SPOT, HIT THE BRAKE, THE CAR SPED UP HITTING ANOTHER PARKED CAR. I HAD A PROBLEM YESTERDAY, PUT CAR IN CRUISE CONTROL(50 MPH) ON THE HIGHWAY, WENT TO BRAKE TO TURN, CRUISE

20180406Component: STRUCTURE:BODYFire reported

APRIL 4, 2018 TO WHOM IT MAY CONCERN: THIS IS MY RECOLLECTION AT DISCOVERING THAT MY CADILLAC CTS 2015 GOT ON FIRE AT MY FRIENDS HOME IN SHELBY MICHIGAN ON MARCH 25TH, 2018. ON MARCH 24TH M

Showing the 5 most serious of 65 complaints filed with NHTSA.

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