2019 GMC Terrain Service and Repair Manual

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Factory-Grade Data

2019 GMC Terrain 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

  • SL Sport Utility 4-Door
  • SLE Sport Utility 4-Door
  • Denali Sport Utility 4-Door
  • SLT Sport Utility 4-Door

Engines covered

  • 1.5L 1490CC 91Cu. In. l4 GAS DOHC Turbocharged
  • 1.6L 1598CC 98Cu. In. l4 DIESEL DOHC Turbocharged
  • 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

2019 GMC Terrain Recalls & Complaints

NHTSA #18V57600030/08/2018Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Profes

Consequence

A reduction of braking performance can increase the risk of a crash.

Remedy

GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recal

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, 2019-2020 Buick Encor

Consequence

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

Remedy

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

TSB #11030974

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

TSB #11030360

This preliminary information discusses a condition that may arise from the drivers window switch sending an errant message causing the vehicle to enter manual fob learn mode.

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.

Showing the 8 most recent of 1003 technical service bulletins on file with NHTSA.

20240621Component: SERVICE BRAKESCrash reported3 injured

The contact owned a 2019 GMC Terrain. The contact stated that while the wife was driving at approximately 60 MPH, the brake pedal was depressed and it felt stiff. The vehicle failed to decrease in spe

20230710Component: AIR BAGSCrash reported1 injured

The contact owned a 2019 GMC Terrain. The contact stated that while driving at an undisclosed speed, another vehicle crashed into the passenger side of the contact's vehicle. The air bags deployed; ho

20190712Component: AIR BAGSCrash reported1 injured

I WAS IN AN ACCIDENT AND WAS HIT IN THE DRIVER ON THE DRIVER SIDE OF THE VEHICLE ON THE STREET. THE AIRBAGS DIDN'T DEPLOY DURING THE ACCIDENT.

20250924Component: SUSPENSIONCrash reported

Recently experience rear differential binding with vehicle resulting in an accident.

20210925Component: UNKNOWN OR OTHERCrash reported

Carfax report showed that Air bag deployed in the accident on 3/22/2019. Which is wrong information. The car was repaired through state farm authorize body shop. The effect part was front bumper, gril

Showing the 5 most serious of 285 complaints filed with NHTSA.

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