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2020 Chevrolet Silverado 2500 HD / 3500 HD repair manual
  • PrintableYes
  • Works onPC, Mac, iPhone, iPad, Android phones and tablets
  • SoftwareWe recommend Sumatra PDF as PDF reader
Factory manual SKU 9646

2020 Chevrolet Silverado 2500 HD / 3500 HD repair manual

$69.99

Your manual
  • Do the labor yourself. On most repairs the shop’s labor costs more than the parts. With the factory procedure you can do that part yourself.
  • Built for your VIN. Your engine, transmission and options, so you don’t have to guess which section applies.
  • Factory steps, specs and wiring. Repair procedures with illustrations, torque values and the complete wiring diagrams.
  • Find any job in seconds. Searchable PDF with a full index and bookmarks.
  • In your inbox in 12–24 hours. Yours to keep, on any computer, phone or tablet.
File type
PDF with hyperlinks, index table & bookmarks
Delivery
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Description

2020 Chevrolet Silverado 2500 HD / 3500 HD factory repair manual (T1XX) – PDF for your VIN

The 2020 Chevrolet Silverado 2500 HD / 3500 HD (T1XX) factory repair manual, made for your VIN from GM's factory service data: step-by-step repair procedures, specifications and wiring diagrams for your exact Silverado 2500 HD / 3500 HD. The 2020 Silverado 2500 HD / 3500 HD was offered with two engines and two transmissions (listed below); your manual covers the combination your VIN shows.

This page is for the heavy-duty 2020 Silverado 2500 HD and 3500 HD. For the light-duty truck, see the 2020 Chevrolet Silverado 1500 manual.

The Google Top Quality Store badge, without a subscription. Pay once for this manual; there is no monthly fee and nothing to cancel later.

The difference you get

  • Factory information, not an aftermarket book: the same GM procedures and specifications dealer technicians use
  • Built for your VIN: only the engine, gearbox and options your Silverado 2500 HD / 3500 HD actually has
  • Clickable hyperlinks throughout the PDF: from a repair step straight to the diagram or torque table it mentions, with bookmarks and full-text search on top. Few manuals sold online have this
  • Wiring included: diagrams, connector pinouts and component locations
  • Computer, phone or tablet: no app needed, and you can print the pages you work from
  • A Google Top Quality Store, online since 2015

Owner's manual or repair manual?

The owner's manual in the glovebox explains the controls and the service intervals. This is the other book, the one technicians work from:

  • Owner's manual: controls, warning lights, maintenance schedule, fluid types
  • Factory repair manual: how to take parts out and put them back, the torque for every bolt, fault codes and complete wiring diagrams

Model year 2020 is part of the T1XX Silverado HD generation (2020–2026). As the first year of the generation, it shares little with the older model; use procedures for this year only.

Engine options

  • 6.6L V8 gasoline
  • 6.6L Duramax V8 turbo diesel

Transmissions offered

  • 6-speed automatic (gasoline)
  • Allison 10-speed automatic (diesel)

Not sure which version you have? You don't need to know: the VIN tells us, and the manual is built for it.

Jobs owners of a 6-year-old Silverado 2500 HD / 3500 HD look up most

  • Sensor faults: oxygen, ABS wheel speed, mass air flow
  • Door lock actuators and window regulators
  • Brake pads, rotors and calipers
  • Suspension links, bushings and wheel bearings
  • Spark plugs and ignition coils
  • Glow plugs and cold-start faults
  • Diesel particulate filter regeneration
  • EGR valve and cooler

2020 Silverado 2500 HD / 3500 HD: recalls and known problems

The U.S. safety agency NHTSA lists 10 safety recalls and 137 owner complaints for the 2020 Silverado 2500 HD / 3500 HD. When a part on this list fails out of warranty, the manual shows how to test and replace it.

  • Latches/Locks/Linkages: Latch (campaign 20V142000)
  • Tires: Temporary/Emergency Spare Tire (campaign 21V578000)
  • Seat Belts (campaign 20V792000)
  • Air Bags: Inflator (campaign 20V446000)
  • Seat Belts: Pretensioner (campaign 19V814000)
  • Structure: Hood (campaign 20V324000)
  • Power Train: Driveshaft (campaign 20V650000)
  • Latches/Locks/Linkages: Latch (campaign 24V060000)
  • and 2 more

Most owner complaints concern: Power Train (42), Service Brakes (28), Electrical System (23), Engine (16), Tires (11).

Check your VIN: the 10th character is “L” on a 2020 model.

Other Chevrolet manuals: 2020 Cheyenne, 2020 Colorado, 2020 Corvette, 2017 SS Sedan, 2020 Suburban, 2020 Traverse, 2018 City Express, 2019 Tornado/Montana repair manua, 2021 Trailblazer, 2018 2014 Caprice.

From order to PDF

  • Checkout asks for your VIN
  • The manual is built for that VIN only
  • Delivery by email in 12–24 hours
  • Searchable PDF with bookmarks and hyperlinks, works offline

What you'll find in the 2020 Silverado 2500 HD / 3500 HD manual

  • General information, vehicle identification and lifting points
  • Maintenance schedules, fluids and capacities
  • Engine mechanical: timing, cylinder head, lubrication
  • Cooling system
  • Fuel system and engine management
  • Ignition, starting and charging
  • Emission controls
  • Exhaust system
  • Clutch and manual transmission
  • Automatic transmission / transaxle
  • Driveshafts, axles and differential
  • Suspension, front and rear
  • Steering
  • Brakes and ABS
  • Heating, ventilation and air conditioning
  • Restraints and airbags
  • Body, doors, glass and trim
  • Lighting and instruments
  • Electrical components and module locations
  • Wiring diagrams
  • Diagnostic trouble codes
Versions offered

Engines:

  • 6.6L V8 gasoline
  • 6.6L Duramax V8 turbo diesel

Transmissions:

  • 6-speed automatic (gasoline)
  • Allison 10-speed automatic (diesel)

Your manual is built for the version in your VIN.

Video

This video is for information. Your manual looks and works the same way, but it is not identical.

Delivery

Free, by email in 12-24 hours.

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