2021 GMC Canyon Service and Repair Manual

4.7 · Trusted by 14,000+ mechanics & DIYers
Regular price $49.99 USD
  • Lightning-Fast Downloads
    Optimized files — even slow connections handle it
  • Instant Search & Navigation
    Jump to any procedure or spec with one click
  • Print One or All Pages
    Bring only the pages you need to the shop
  • Covers Every System & Component
    Every procedure for the 2021 GMC Canyon
Sample Preview

Unlock the Full Manual

Complete repair procedures
Wiring diagrams & schematics
Torque specifications
Full search & bookmarks
$49.99
Buy 2+ Manuals, Save 20% Discount applied automatically at checkout
20% OFF
Secure Checkout
No Subscriptions
Factory-Grade Data

2021 GMC Canyon 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

  • AT4 Crew Cab Pickup 4-Door
  • Denali Crew Cab Pickup 4-Door
  • Elevation Standard Crew Cab Pickup 4-Door
  • Elevation Crew Cab Pickup 4-Door
  • Elevation Standard Extended Cab Pickup 4-Door
  • Elevation Extended Cab Pickup 4-Door

Engines covered

  • 3.6L 222Cu. In. V6 GAS DOHC Naturally Aspirated
  • 2.8L 171Cu. In. l4 DIESEL DOHC Turbocharged
  • 2.5L 2457CC 153Cu. In. l4 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

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Vehicle Safety Data

2021 GMC Canyon Recalls & Complaints

NHTSA #20V81100023/12/2020Component: SEAT BELTS

General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camar

Consequence

If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly rest

Remedy

GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began

NHTSA #21V49700001/07/2021Component: EQUIPMENT:OTHER:LABELS

General Motors, LLC (GM) is recalling certain 2021 GMC Canyon vehicles. The load carrying capacity printed on the Tire and Loading Information placard is 22.5 kg (51 lbs.) more than intended. As suc

Consequence

An incorrect label may lead to unintentionally overloading the vehicle, increasing the risk of a cra

Remedy

GM will mail owners a new B-pillar label, free of charge. Owners may apply the label, or bring it t

TSB #11032777

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

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 #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 #11027701

This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.

Showing the 8 most recent of 740 technical service bulletins on file with NHTSA.

20211029Component: AIR BAGSCrash reported4 injured

I was involved in a MVA with another car. The other car had all their airbags deploy after they struck me. None of my airbags deployed. I was hit in the right front corner ahead of my right tire. The

20211029Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGCrash reported4 injured

I was involved in a MVA with another car. The other car had all their airbags deploy after they struck me. None of my airbags deployed. I was hit in the right front corner ahead of my right tire. The

20210504Component: AIR BAGSCrash reported1 injured

I WAS INVOLVED IN A SERIOUS FRONT END COLLISION THAT TOTALED MY VEHICLE. MY TRUCK WAS DEEMED NOT REPAIRABLE AND DECLARED TOTAL BY THE INSURANCE COMPANY. I WAS DRIVING ON THE NJ GARDEN STATE PARKWAY

20241119Component: ELECTRICAL SYSTEMFire reported

While driving, a fire started inside the vehicle between the rear passenger side seat belt and the rear window. My daughters were in the back seat and started screaming. I immediately stopped the vehi

20260205Component: EXTERIOR LIGHTING:HEADLIGHTS

The contact owns a 2021 GMC Canyon. The contact stated that while driving at various speeds, the driver’s side low beam headlight failed to illuminate as intended. No warning light was illuminated.

Showing the 5 most serious of 13 complaints filed with NHTSA.

All Model Years

Other Years of the GMC Canyon

Need a manual for a different year? Browse every GMC Canyon we cover.

Explore More

More GMC Models

Browse service and repair manuals for other GMC models in our catalog.