2023 Chevrolet Suburban Service and Repair Manual

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Factory-Grade Data

2023 Chevrolet Suburban 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.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Z71 Sport Utility 4-Door
  • Commercial Sport Utility 4-Door
  • High Country Sport Utility 4-Door
  • Premier Sport Utility 4-Door
  • RST Sport Utility 4-Door
  • LS Sport Utility 4-Door
  • LT Sport Utility 4-Door

Engines covered

  • 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.2L 6162CC 376Cu. In. V8 GAS OHV Naturally Aspirated
  • 3.0L 2993CC 183Cu. In. l6 DIESEL 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 Chevrolet Suburban Recalls & Complaints

NHTSA #23V64200020/09/2023Component: SUSPENSION:REAR

General Motors, LLC (GM) is recalling certain 2023 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. The rear suspension oute

Consequence

A broken suspension bolt can result in misalignment of the rear wheel, increasing the risk

Remedy

Dealers will replace both rear suspension outer control arm bolts, free of charge. Owner

NHTSA #22V90300008/12/2022Component: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500,

Consequence

DRLs that do not deactivate as intended may result in a glare, reducing visibility, and in

Remedy

The body control module software will be updated by a dealer, or through an over-the-air (

TSB #11032784

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

TSB #11032777

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

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 #11032622

This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.

TSB #11032621

This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.

TSB #11032559

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

Showing the 8 most recent of 646 technical service bulletins on file with NHTSA.

20260126Component: STRUCTURE:BODY2 injured

OEM Running boards, non powered. It is available for inspection. The running boards are slippery evetime they are wet. Does not matter what shoes you have. I have slipped 4 time

20251127Component: SEAT BELTS1 injured

While driving a 2023 Chevrolet Suburban (VIN: [XXX] ), my [XXX] son was seated in the second-row center seat and was properly buckled in with the factory shoulder/lap belt. He tur

20260520Component: ENGINE

The engine siezed up due to the issues that are related to the recall. Currently waiting for a new engine, it has been almost 5 weeks and no time frame on when it will be fixed.

20260518Component: ENGINE

After performing all preventative, regular, and even proactive maintenance, the vehicle started shaking and shutting down with 2 miles. We are now being told (by 3 separate mechan

Showing the 4 most serious of 131 complaints filed with NHTSA.

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