This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
2020 GMC Canyon Service and Repair Manual
-
Lightning-Fast DownloadsOptimized files — even slow connections handle it
-
Instant Search & NavigationJump to any procedure or spec with one click
-
Print One or All PagesBring only the pages you need to the shop
-
Covers Every System & ComponentEvery procedure for the 2020 GMC Canyon
2020 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
- All Terrain Extended Cab Pickup 4-Door
- SLT Crew Cab Pickup 4-Door
- SL Extended Cab Pickup 4-Door
- All Terrain Crew Cab Pickup 4-Door
- Base Extended Cab Pickup 4-Door
- Denali Crew Cab Pickup 4-Door
- SLE Crew Cab Pickup 4-Door
- Base Crew Cab Pickup 4-Door
- SLE 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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
2020 GMC Canyon Recalls & Complaints
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
Showing the 8 most recent of 857 technical service bulletins on file with NHTSA.
The contact owned a 2020 GMC Canyon. The contact stated that while driving at 45 MPH, he crashed into the vehicle in front. The contact stated that the vehicle was switching lanes abruptly, and did no
The main issue is the transmission... It shudders. Now I have to change the oil every 10K miles on it, or it will start shuddering again. It first started when the truck had 50K or a little more mil
The contact owns a 2020 GMC Canyon. The contact stated that while her son was attempting to park the vehicle in a parking garage, there was a loud screeching sound coming from the vehicle while depres
The contact owns a 2020 GMC Canyon. The contact stated that while her son was attempting to park the vehicle in a parking garage, there was a loud screeching sound coming from the vehicle while depres
The contact owns a 2020 GMC Canyon. The contact stated upon depressing the brake pedal and turning the key in the ignition switch to turn off the vehicle, the key failed to turn to the OFF position an
Showing the 5 most serious of 19 complaints filed with NHTSA.
Other Years of the GMC Canyon
Need a manual for a different year? Browse every GMC Canyon we cover.

2024
GMC Canyon
$49.99

2023
GMC Canyon
$49.99

2022
GMC Canyon
$49.99

2021
GMC Canyon
$49.99

2019
GMC Canyon
$49.99

2018
GMC Canyon
$49.99

2017
GMC Canyon
$49.99

2016
GMC Canyon
$49.99

2015
GMC Canyon
$49.99

2012
GMC Canyon
$29.99

2011
GMC Canyon
$29.99

2010
GMC Canyon
$29.99
+6
View all
GMC Canyon years →
More GMC Models
Browse service and repair manuals for other GMC models in our catalog.
