Cadillac CT6 2020 Factory Workshop Service Repair Manual
These are the same manuals used by professionals to diagnose and repair these models.
Loaded with illustrations, instructions, photos, and diagrams, complete to service and repair your vehicle.
” Works on any computer, laptop, smartphone, iPad, iPhone, or tablet. “
10 002 Pages
The Cadillac CT6 is an extravagance car that is intended to interest sports vehicle aficionados. Base models are furnished with 18″ compound wheels, warmed/fueled side mirrors, all-LED outside lighting, premium calfskin upholstery, controlled tilting/extending guiding wheel, fueled front seating, atmosphere control, moving Wi-Fi, Bluetooth/cell phone/USB incorporation, 10.2″ touchscreen support with stopping camera, remote telephone charging stations, and premium Bose sound framework. Additional items can get you an all encompassing sunroof, GPS, warmed front seats, impact alleviation framework, bigger 20″ wheels, night vision, and then some. A turbocharged 2.0-liter four-chamber motor powers this vehicle, creating 265 pull and 295 pound-feet of torque.
CD COVER:
Cadillac CT6 2020 Service Manual
SERVICE MANUAL COVER:
Body Hardware and Trim
Exterior Trim Repair
Front Grille Replacement
Pickup Box End gate Molding Replacement
Floor Coverings and Head linings
Interior Trim and Paneling Repair
Instrument Panel Assembly Replacement
Front Floor Console Armrest Replacement
Body Repair
Bolted Exterior Body Panels and Closures
Hood Ajar Indicator Description and Operation
Bumpers and Fascia
Active Grille Air Shutter Schematics
Collision Repair
Frame and Underbody
Paint and Coatings
Plastic Panel Information and Repair
Body System
Fixed and Moveable Windows
Moveable Window Schematics
Horns and Pedestrian Alerts
Horn Schematics
Lighting
Exterior Lighting Systems Description and Operation
Interior Lighting Systems Description and Operation
Lighting Repair Instructions
Lights Schematics
Mirrors
Mirror Schematics
Vehicle Access
Door Lock Indicator Schematics
Wipers and Washers
Doors
Brakes
Brake Repairs
Antilock Brake System
Brake System Schematics
Disc Brakes
Hydraulic Brakes
Brake System Description and Operation
Park Brake
Trailer Brake Controls
Diagnostic Overview, Starting Point, and Programming
Programming and Setup
Diagnostic Information and Procedures
Driveline, Axle
Front Drive Axle
Rear Drive Axle
Driveline and Axle Repair
Driveline, Axle Diagnostic Information and Procedures
Driveline, Axle Component Locator
Propeller Shaft
Wheel Drive Shafts
Driver Information and Entertainment
Cellular, Entertainment, and Navigation
Cellular, Entertainment, and Navigation Repair
Radio Navigation System Schematics
Displays and Gauges
Display Schematic and Routing Diagrams
Image Display Cameras
Secondary and Configurable Customer Controls
Engine
12 V Starting and Charging
Engine Repair Instructions
Starting and Charging Schematics
Cruise Control
Engine Controls and Fuel – 3.6L (LGX)
Engine Controls and Fuel – 4.2L (LTA)
Engine Controls Schematics
Engine Heating and Cooling
Engine Heating and Cooling Repair
Engine Heating and Cooling Schematics
Engine Mechanical
Engine Component Locator
Engine Diagnostic Information and Procedures
Crankshaft and Bearing Installation
Fuel Pump Installation
Radiator Replacement
Water Pump Replacement
Thermostat Bypass Pipe Replacement
Camshaft Replacement
Intake Manifold Replacement
Cylinder Head Assemble
Drive Belt Idler Pulley Replacement
Piston and Connecting Rod Assemble
Oil Pan Disassemble
Oil Filter Installation
Exhaust Manifold Installation
Automatic Transmission Flex Plate Installation
Exhaust Repair
General Information
Air Wind Noise
Maintenance and Lubrication
Vibration Diagnosis and Correction
Waterleaks
HVAC – Heating, Ventilation, and Air Conditioning Repair
HVAC – Automatic
HVAC – Manual
HVAC Schematics
Preface
Dangers, Warnings, and Cautions
Roof Repair
Sunroof Repair
Sunroof Schematics
Safety and Security
Driver Assistance Systems Repair
Driver Assistance Systems Schematics
Immobilizer Repair
Immobilizer Schematics
Parking Assistance Systems Repair
Parking Assistance Systems Schematics
Remote Functions Repair
Remote Function Schematics
Seat Belts
Supplemental Inflatable Restraints
Airbag Repair
Theft Deterrent
Seats
Power Seats
Seat Hardware, Trim, and Upholstery
Seat Heating and Cooling
Steering
Power Steering
Steering Linkage
Steering Wheel and Column
Suspension Repair
Electronic Suspension Control
Front Suspension Repair
Rear Suspension Repair
Electronic Suspension Control Schematics
Suspension General Diagnosis
Tire Pressure Monitoring
Tires and Wheels
Wheel Alignment
Transmission Repair
Automatic Transmission – 10L80 (MQB)
Automatic Transmission – 6L80 (MYC)
Automatic Transmission – 8L90 (MQE)
Transmission Component Locator
Transmission Disassembled Views (2WD)
Automatic Transmission Controls Schematics
Shift Lock Control
Transfer Case
Transmission Cooling
This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.
Language: English
Format: PDF – Indexed and Searchable
COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS
(WINDOWS 10, WINDOWS 8, WINDOWS 11, ETC.)
Windows/Mac/Tablet/Phone Friendly
- Factory Information – Accurate repair procedures, specifications, service information tailored to your vehicle.
- Permanent Ownership – No subscriptions, recurring fees, or expiration dates. Buy it once and keep it forever.
- No Software Required – Works with any standard PDF reader on Windows, Mac, smartphones, and tablets.
- Flexible Storage Options – Save your manual to a USB drive, CD, DVD, cloud storage, Dropbox, computer, or mobile device.
- Print-Friendly Format – Print the entire manual or only the pages needed for a specific repair.
- Portable & Convenient – Compact PDF files make storage and access simple from virtually any device.
- Haynes DIY Manuals: Provides a comprehensive digital workshop dashboard detailing fluid capacities, brake servicing, multi-link suspension layouts, and standard electrical wiring diagrams.
- Repair Surge Platform: Offers a searchable, cloud-based factory-approved database featuring interactive wiring schematics, strict torque specifications, clear code troubleshooting, and direct fluid specifications.
- Factory Manuals OEM Specialists: Delivers a massive, VIN-matched interactive PDF service file pulled straight from GM databases, giving you exact dealer-level assembly, engine repair, and module calibration workflows.
- 3.6-Liter Naturally Aspirated V6 (LGX): Generates 335 Horsepower and 284 lb-ft of Torque. Paired with a 10-speed automatic transmission.
- 4.2-Liter Twin-Turbo V8 (“Blackwing” LTA): A hand-built, hot-V masterpiece. It produces 500 Horsepower and 574 lb-ft of Torque in the Platinum trim, and a massive 550 Horsepower and 640 lb-ft of Torque in the ultra-rare CT6-V. Paired with a heavy-duty 10-speed automatic transmission.
- Drivetrain & Chassis: Standard All-Wheel Drive (AWD) across all trims for the 2020 model year. Higher trims include Magnetic Ride Control and Active Rear Steering (which turns the rear wheels up to 3.5 degrees for tighter cornering).
- Luxury: The entry point, equipped standard with the 3.6L V6, standard AWD, LED lighting, leather seating, and the 10.2-inch CUE infotainment screen.
- Premium Luxury: Steps up with standard Super Cruise capabilities, a 34-speaker Bose Panaray audio system, a full-color Head-Up Display, Magnetic Ride Control, Active Rear Steering, and surround-view cameras.
- Platinum: The ultimate executive luxury trim. It comes standard with the 500-hp Blackwing V8 engine, premium Semi-Aniline leather seating, 20-way adjustable massaging front seats, dual-screen rear-seat entertainment, and an exclusive chrome grille.
- CT6-V: The track-focused performance pinnacle. Features the fully unleashed 550-hp Blackwing V8 engine, high-performance mechanical limited-slip differential, track-tuned Magnetic Ride Control, aggressive carbon fiber interior accents, performance Brembo brakes, and a unique mesh grille.
- Blackwing V8 Maintenance & Rarity: The 4.2L Blackwing V8 engine was only produced for a very short window. Because it is a highly unique engine with bespoke architecture, replacement components (like turbos, gaskets, and internal blocks) can be exceptionally expensive and difficult to source. Repairs almost always require specialized dealership technicians.
- Super Cruise Camera Tracking: The Super Cruise hands-free driving system relies on an infrared driver-attention camera mounted on the steering column. If this camera module becomes dirty, uncalibrated, or fails, the entire Super Cruise system will immediately lock out and disable itself, requiring code diagnostics to reset.
- Transmission Shifting Glitches: While the 10-speed automatic is highly regarded, some owners report occasional harsh downshifts or hesitation when accelerating from a rolling stop. Often, this can be resolved with a dealership transmission control module (TCM) software reflash.
- Bose Panaray Audio Rattles: The optional 34-speaker Bose Panaray system sounds incredible but exerts immense acoustic pressure inside the cabin. Over time, some owners report physical vibrations or rattles developing inside the door panels and rear parcel shelf, requiring foam insulation tracking.



