2021 Cadillac XT5 Service and Repair Manual

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Factory-Grade Data

2021 Cadillac XT5 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

  • Livery Limousine 4-Door
  • Livery Sport Utility 4-Door
  • Premium Luxury Sport Utility 4-Door
  • Livery Hearse 4-Door
  • Sport Sport Utility 4-Door
  • Luxury Sport Utility 4-Door

Engines covered

  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged
  • 3.6L 222Cu. 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

2021 Cadillac XT5 Recalls & Complaints

NHTSA #22V70900022/09/2022Component: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

General Motors, LLC (GM) is recalling certain 2020-2021 Cadillac XT5, XT6, and GMC Acadia vehicles equipped with the optional Surround Vision feature. The rearview camera coaxial cable connectors may

Consequence

An inoperative rearview camera can reduce the driver's rear visibility, increasing the risk of a cra

Remedy

Dealers will replace the coaxial cables, free of charge. Owner notification letters were mailed Jan

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 #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.

TSB #11030091

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

TSB #11029950

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

TSB #11028977

Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during

Showing the 8 most recent of 827 technical service bulletins on file with NHTSA.

20260305Component: BACK OVER PREVENTION

The contact owns a 2021 Cadillac XT5. The contact stated that while driving approximately 50 MPH, the infotainment screen was touched but went black and failed to respond. The vehicle was turned off a

20260305Component: ELECTRICAL SYSTEM

The contact owns a 2021 Cadillac XT5. The contact stated that while driving approximately 50 MPH, the infotainment screen was touched but went black and failed to respond. The vehicle was turned off a

20251004Component: ENGINE

When braking — both at low speeds and when slowing from highway speeds (40+ mph) — vehicle feels like engine revs and is still pushing against the brakes. Requires very firm pedal pressure to hold

20251004Component: SERVICE BRAKES

When braking — both at low speeds and when slowing from highway speeds (40+ mph) — vehicle feels like engine revs and is still pushing against the brakes. Requires very firm pedal pressure to hold

20251004Component: UNKNOWN OR OTHER

When braking — both at low speeds and when slowing from highway speeds (40+ mph) — vehicle feels like engine revs and is still pushing against the brakes. Requires very firm pedal pressure to hold

Showing the 5 most serious of 19 complaints filed with NHTSA.

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