The service and repair manual for the 2021 GMC Acadia — 2.5L I4 and 3.6L V6 and 2.0L I4 engines, 6 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 year | 2021 |
|---|---|
| Engines | 2.5L I4 — 150 cu in, DOHC 3.6L V6 — DOHC 2.0L I4 — 122 cu in, DOHC, turbocharged |
| Trims | SL Sport Utility 4-Door · Black Sport Utility 4-Door · SLE Sport Utility 4-Door · AT4 Sport Utility 4-Door · Denali Sport Utility 4-Door · SLT Sport Utility 4-Door |
| Federal record | 1 recall · 205 complaints · 841 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 Acadia manual
03 / ContentsSections in the manual
- Quick Lookups 896
- Engine Performance 3,015
- Accessories & Equipment 9,292
- General Information 1,995
- Body & Frame 2,811
- Heating, Ventilation & A/C (HVAC) 474
- Brakes 1,852
- Maintenance 13
- Restraints 363
- Drivelines & Axles 227
- Steering 327
- Electrical 5,098
- Suspension 310
- Engine Mechanical 1,502
- Transmission 960
- Loosen 45
04 / Known issuesRecalls on federal record for the 2021 Acadia
- Back Over Prevention — sensing system › camera · 22V709000An inoperative rearview camera can reduce the driver's rear visibility, increasing the risk of a cra.
Owners have filed 205 complaints and GMC has issued 841 technical service bulletins for the 2021 Acadia. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 Acadia manual
Is this manual specific to the 2021 Acadia?
Yes. It is the OEM manual matched to the 2021 model year, covering the 2.5L I4 and 3.6L V6 and 2.0L I4 across the SL Sport Utility 4-Door, Black Sport Utility 4-Door, SLE Sport Utility 4-Door, AT4 Sport Utility 4-Door, Denali Sport Utility 4-Door, SLT Sport Utility 4-Door trims. Specifications and procedure sequences are the ones GMC published for this year.
What 2021 Acadia problems does it help with?
1 recall is on federal record for the 2021 Acadia, covering back over prevention. 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 2021 Acadia wiring diagrams?
Yes — the complete wiring diagrams for the 2021 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 Acadia years and 2021 GMC models
2024 Acadia · 2023 Acadia · 2022 Acadia · 2020 Acadia · 2019 Acadia · 2018 Acadia · 2017 Acadia · 2016 Acadia · 2015 Acadia · all 18 years
2021 GMC Canyon · 2021 GMC Savana 2500 · 2021 GMC Savana 3500 · 2021 GMC Savana 4500 · 2021 GMC Sierra · 2021 GMC Sierra 1500 · 2021 GMC Sierra 1500 Limited · 2021 GMC Sierra 2500 HD · 2021 GMC Sierra 3500 HD · 2021 GMC Terrain · 2021 GMC Yukon · 2021 GMC Yukon XL · every 2021 model