The service and repair manual for the 2021 Acura RDX — the 2.0L I4 engine, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Acura published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 2.0L I4 — 122 cu in, DOHC, turbocharged |
| Trims | SH-AWD Sport Utility 4-Door · Base Sport Utility 4-Door · PMC Edition Sport Utility 4-Door · Tech Sport Utility 4-Door · A-Spec Sport Utility 4-Door |
| Federal record | 2 recalls · 146 complaints · 193 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 RDX manual
03 / ContentsSections in the manual
- Quick Lookups 314
- General Information 1,897
- Accessories & Equipment 5,791
- Heating, Ventilation & A/C (HVAC) 687
- Body & Frame 1,565
- Maintenance 32
- Brakes 1,074
- Restraints 1,158
- Drivelines & Axles 73
- Steering 156
- Electrical 778
- Suspension 365
- Engine Mechanical 361
- Transmission 1,546
- Engine Performance 4,829
- Front 328
- Rear 245
- Battery 12
04 / Known issuesRecalls on federal record for the 2021 RDX
- Power Train — driveline › driveshaft · 21V939000Driveshaft failure can cause a sudden loss of drive power, or cause the vehicle to roll away when pa.
- Air Bags — sensor › occupant classification › front passenger · 24V064000An air bag that deploys unintentionally during a crash can increase the risk of injury.
Owners have filed 146 complaints and Acura has issued 193 technical service bulletins for the 2021 RDX. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 RDX manual
Is this manual specific to the 2021 RDX?
Yes. It is the OEM manual matched to the 2021 model year, covering the 2.0L I4 across the SH-AWD Sport Utility 4-Door, Base Sport Utility 4-Door, PMC Edition Sport Utility 4-Door, Tech Sport Utility 4-Door, A-Spec Sport Utility 4-Door trims. Specifications and procedure sequences are the ones Acura published for this year.
What 2021 RDX problems does it help with?
2 recalls are on federal record for the 2021 RDX, covering power train, air bags. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Acura dealers.
Does it include 2021 RDX 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 RDX years and 2021 Acura models
2024 RDX · 2023 RDX · 2022 RDX · 2020 RDX · 2019 RDX · 2018 RDX · 2017 RDX · 2016 RDX · 2015 RDX · all 18 years
2021 Acura ILX · 2021 Acura Integra · 2021 Acura MDX · 2021 Acura NSX · 2021 Acura TLX · 2021 Acura ZDX · every 2021 model