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2023 GMC Sierra 2500 HD / 3500 HD repair manual
$79.99
- 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.
Description
2023 GMC Sierra 2500 HD / 3500 HD workshop manual (T1XX): factory repair procedures and wiring diagrams
The 2023 GMC Sierra 2500 HD / 3500 HD (T1XX) factory repair manual, made for your VIN from the same GM service information dealer technicians use: repair procedures, torque specs and wiring diagrams for your exact Sierra 2500 HD / 3500 HD. The 2023 Sierra 2500 HD / 3500 HD was offered with two engines and two transmissions (listed below); the manual you get is for the combination in your VIN.
This page is for the heavy-duty 2023 Sierra 2500 HD and 3500 HD. For the light-duty truck, see the 2023 GMC Sierra 1500 manual.
Google rates factory-manuals.com a Top Quality Store, and we do not sell subscriptions. You pay once for the 2023 Sierra 2500 HD / 3500 HD manual and keep the PDF for as long as you own the vehicle.
What you get with this manual
- Built for your VIN: only the engine, gearbox and options your Sierra 2500 HD / 3500 HD actually has
- Yours to keep: pay once and the PDF stays with you
- 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
What this manual has that the owner's manual does not
The owner's manual stops where the repair starts. The factory repair manual picks up from there:
- Owner's manual: controls, warning lights, maintenance schedule, fluid types
- Factory repair manual: removal and installation steps, torque specs, diagnostic trouble codes, wiring diagrams and component locations
Model year 2023 is part of the T1XX Sierra HD generation (2020–2026). Years of the same generation share most procedures; equipment and electrical details still change from year to year, so the manual follows your VIN.
Engines offered
- 6.6L V8 gasoline
- 6.6L Duramax V8 turbo diesel
Transmission options
- 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.
What a 2023 Sierra 2500 HD / 3500 HD usually needs
- 12-volt battery replacement
- Scheduled service, oil and filter changes
- Programming a module after a part is replaced
- Camera and radar calibration after windshield or bumper work
- Tire pressure sensor relearn
- Glow plugs and cold-start faults
- Diesel particulate filter regeneration
- EGR valve and cooler
Recalls and owner complaints for the 2023 Sierra 2500 HD / 3500 HD
The U.S. safety agency NHTSA lists 1 safety recall and 61 owner complaints for the 2023 Sierra 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 24V060000)
Most owner complaints concern: Power Train (34), Electrical System (10), Engine (6), Tires (5), Service Brakes (5).
On a 2023 vehicle the 10th character of the 17-digit VIN is “P”, a quick way to confirm the model year before you order.
Other GMC manuals: 2023 Terrain, 2023 Acadia, 2023 Canyon, 2023 Savana, 2023 Sierra, 2023 Yukon.
How we make your manual
- You give us the VIN at checkout.
- We build the manual from GM data for that exact Sierra 2500 HD / 3500 HD.
- You get a PDF in your inbox within 12–24 hours, to keep on any computer, phone or tablet.
What you'll find in the 2023 Sierra 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.
