2023 Cadillac XT6 Service and Repair Manual

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Factory-Grade Data

2023 Cadillac XT6 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 Luxury Sport Utility 4-Door
  • Sport Sport Utility 4-Door
  • Luxury Sport Utility 4-Door

Engines covered

  • 3.6L 222Cu. In. V6 GAS DOHC Naturally Aspirated
  • 2.0L 1998CC 122Cu. In. l4 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

2023 Cadillac XT6 Recalls & Complaints

NHTSA #22V70800022/09/2022Component: EQUIPMENT:OTHER:LABELS

General Motors, LLC (GM) is recalling certain 2023 Cadillac XT5, XT6, and GMC Acadia vehicles. The certification label located on the driver's side B-pillar contains tire size information that may be

Consequence

Illegible tire size information may result in the wrong tires being installed, increasing the risk o

Remedy

Dealers will replace the vehicle certification label, free of charge. Owner notification letters we

NHTSA #23V17200016/03/2023Component: POWER TRAIN:AUTOMATIC TRANSMISSION

General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect su

Consequence

A half-shaft disengaging from the transmission can result in a loss of drive power or vehicle rollaw

Remedy

Dealers will replace the sun gears, free of charge. Owner notification letters were mailed on July

TSB #11032784

This Preliminary information communicates to dealers a procedure to reset the radio.

TSB #11032767

This Preliminary information communicates to dealers a procedure to reset the radio.

TSB #11032764

Pi created to provide GM dealers with information on gathering information for projection issue

TSB #11032763

This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

TSB #11032559

This Preliminary information communicates to dealers a procedure to reset the radio.

TSB #11030974

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

TSB #11030532

Improvements to OnStar functionality.

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.

Showing the 8 most recent of 536 technical service bulletins on file with NHTSA.

20221213Component: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKINGCrash reported

My wife was backing at less than 2 and hit a truck behind her. She said no alarms sounded, the only thing she heard was noise of hitting a truck behind her. No police called or report made. When ca

20260201Component: FUEL/PROPULSION SYSTEM

The vehicle has experienced repeated fuel system failures. The fuel pump control module (FPCM) is a known General Motors issue on similar vehicles, but this specific vehicle was not included in a reca

20250430Component: WHEELS

i WAS INFORMED DURING A DEALER OIL CHANGE THAT THE TOE LINKS ON THE REAR WHEELS NEEDED TO BE REPLACED. WHY IS THIS NOT COVERED UNDER THE BUMPER TO BUMPER WARRANTY?

20250430Component: SUSPENSION

i WAS INFORMED DURING A DEALER OIL CHANGE THAT THE TOE LINKS ON THE REAR WHEELS NEEDED TO BE REPLACED. WHY IS THIS NOT COVERED UNDER THE BUMPER TO BUMPER WARRANTY?

20240814Component: POWER TRAIN

The contact owns a 2023 Cadillac XT6. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway, where the ve

Showing the 5 most serious of 16 complaints filed with NHTSA.

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