2019 Chevrolet Blazer Service and Repair Manual

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Factory-Grade Data

2019 Chevrolet Blazer 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

  • L Sport Utility 4-Door
  • RS Sport Utility 4-Door
  • True North Sport Utility 4-Door
  • Premier Sport Utility 4-Door
  • Base Sport Utility 4-Door

Engines covered

  • 2.5L 2457CC 153Cu. In. l4 GAS DOHC Naturally Aspirated
  • 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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Payment methods

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  • Visa

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Vehicle Safety Data

2019 Chevrolet Blazer Recalls & Complaints

NHTSA #20V66800029/10/2020Component: POWER TRAIN:AUTOMATIC TRANSMISSION

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2

Consequence

Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak

Remedy

GM will notify owners, and dealers will inspect the start-stop transmission accumulator an

NHTSA #21V11500025/02/2021Component: TIRES

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chev

Consequence

Over cured tires may develop a break in the sidewall resulting in sudden air loss or a bel

Remedy

GM will notify owners, and dealers will inspect the tires, replacing them as necessary, fr

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 #11029950

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

TSB #11027697

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

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.

Showing the 8 most recent of 846 technical service bulletins on file with NHTSA.

20220803Component: ELECTRICAL SYSTEMCrash reported1 injured

The contact owns a 2019 Chevrolet Blazer. The contact stated that upon driving into a parking space and placing the vehicle into park(P), the vehicle independently accelerated into

20220803Component: POWER TRAINCrash reported1 injured

The contact owns a 2019 Chevrolet Blazer. The contact stated that upon driving into a parking space and placing the vehicle into park(P), the vehicle independently accelerated into

20200303Component: SERVICE BRAKESCrash reported1 injured

BRAKE FAILURE OCCURRED ON A CITY STREET AT A 3 WAY STOP WHEN APPROACHING A STOP SIGN. BRAKES DID NOT PROVIDE ANY STOPPING POWER AND CAUSED THE VEHICLE TO BLOW THROUGH STOP SIGN AND

20251007Component: AIR BAGSCrash reported

i was in a severe accident on 10/6/2025 with a vehicle traveling at approximately 50+mph. My front quarter panel was struck crossing an intersection when a vehicle ran a red light

Showing the 4 most serious of 282 complaints filed with NHTSA.

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