2023 GMC Sierra 1500 Service & Repair Manual

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The service and repair manual for the 2023 GMC Sierra 1500 — 6.2L V8 and 3.0L I6 and 5.3L V8 and 2.7L I4 engines, 12 trims. Matched to this exact model year, so the specifications and sequences are the ones GMC published for your car, not figures carried over from a neighbouring year.

01 / FitmentWhat this manual covers

Model year2023
Engines
6.2L V8 — 376 cu in, OHV
3.0L I6 — 183 cu in, DOHC, turbocharged
5.3L V8 — 325 cu in, OHV
2.7L I4 — 166 cu in, DOHC, turbocharged
TrimsAT4 Crew Cab Pickup 4-Door · Denali Ultimate Crew Cab Pickup 4-Door · SLT Crew Cab Pickup 4-Door · Denali Crew Cab Pickup 4-Door · Pro Extended Cab Pickup 4-Door · SLE Crew Cab Pickup 4-Door +6
Other 2023 Sierra 1500 variantsSierra →
Federal record1 recall · 506 complaints · 1,222 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2023 Sierra 1500 manual

2023 GMC Sierra 1500 service manual page 12023 GMC Sierra 1500 service manual page 22023 GMC Sierra 1500 service manual page 32023 GMC Sierra 1500 service manual page 42023 GMC Sierra 1500 service manual page 52023 GMC Sierra 1500 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 1,098
  • General Information 2,165
  • Accessories & Equipment 13,158
  • Heating, Ventilation & A/C (HVAC) 1,440
  • Body & Frame 4,324
  • Maintenance 16
  • Brakes 1,594
  • Restraints 502
  • Drivelines & Axles 940
  • Steering 523
  • Electrical 6,330
  • Suspension 331
  • Engine Mechanical 2,260
  • Transmission 1,671
  • Engine Performance 3,351
  • Reverse 45

04 / Known issuesRecalls on federal record for the 2023 Sierra 1500

  1. Exterior Lighting — lighting control module › software · 22V903000
    Drls that do not deactivate as intended may result in a glare, reducing visibility, and increasing t.

Owners have filed 506 complaints and GMC has issued 1,222 technical service bulletins for the 2023 Sierra 1500. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2023 Sierra 1500 manual

Is this manual specific to the 2023 Sierra 1500?

Yes. It is the OEM manual matched to the 2023 model year, covering the 6.2L V8 and 3.0L I6 and 5.3L V8 and 2.7L I4 across the AT4 Crew Cab Pickup 4-Door, Denali Ultimate Crew Cab Pickup 4-Door, SLT Crew Cab Pickup 4-Door, Denali Crew Cab Pickup 4-Door, Pro Extended Cab Pickup 4-Door, SLE Crew Cab Pickup 4-Door, AT4X Crew Cab Pickup 4-Door, Pro Crew Cab Pickup 4-Door, SLE Extended Cab Pickup 4-Door, Elevation Crew Cab Pickup 4-Door, Elevation Extended Cab Pickup 4-Door, Pro Standard Cab Pickup 2-Door trims. Specifications and procedure sequences are the ones GMC published for this year.

What 2023 Sierra 1500 problems does it help with?

1 recall is on federal record for the 2023 Sierra 1500, covering exterior lighting. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by GMC dealers.

Does it include 2023 Sierra 1500 wiring diagrams?

Yes — the complete wiring diagrams for the 2023 build, alongside repair procedures, specifications and diagnostics.

Is it a subscription?

No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.

RelatedOther Sierra 1500 years and 2023 GMC models

2024 Sierra 1500 · 2022 Sierra 1500 · 2021 Sierra 1500 · 2020 Sierra 1500 · 2019 Sierra 1500 · 2018 Sierra 1500 · 2017 Sierra 1500 · all 26 years

2023 GMC Acadia · 2023 GMC Canyon · 2023 GMC Hummer EV Pickup · 2023 GMC Savana 2500 · 2023 GMC Savana 3500 · 2023 GMC Savana 4500 · 2023 GMC Sierra · 2023 GMC Sierra 2500 HD · 2023 GMC Sierra 3500 HD · 2023 GMC Terrain · 2023 GMC Yukon · 2023 GMC Yukon XL · every 2023 model