The service and repair manual for the 2021 Nissan Frontier — 2.5L I4 and 3.8L V6 and 2.5L I4 engines, 10 trims. Matched to this exact model year, so the specifications and sequences are the ones Nissan published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 2.5L I4 — 152 cu in, DOHC, turbocharged 3.8L V6 — 231 cu in, DOHC 2.5L I4 — 152 cu in, DOHC |
| Trims | DC Crew Cab Pickup 4-Door · SV Extended Cab Pickup 4-Door · SE Crew Cab Pickup 4-Door · SV Crew Cab Pickup 4-Door · S Extended Cab Pickup 4-Door · S Crew Cab Pickup 4-Door +4 |
| Federal record | 2 recalls · 25 complaints · 60 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 Frontier manual
03 / ContentsSections in the manual
- Quick Lookups 640
- General Information 1,486
- Accessories & Equipment 2,392
- Heating, Ventilation & A/C (HVAC) 579
- Body & Frame 1,066
- Maintenance 123
- Brakes 984
- Restraints 930
- Drivelines & Axles 356
- Steering 276
- Electrical 2,896
- Suspension 212
- Engine Mechanical 338
- Transmission 1,189
- Engine Performance 3,841
- Front Hub Bearing Bolts 44
04 / Known issuesRecalls on federal record for the 2021 Frontier
- Power Train — automatic transmission · 22V457000A vehicle rollaway increases the risk of a crash.
- Power Train — automatic transmission · 22V671000A vehicle rollaway increases the risk of a crash.
Owners have filed 25 complaints and Nissan has issued 60 technical service bulletins for the 2021 Frontier. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 Frontier manual
Is this manual specific to the 2021 Frontier?
Yes. It is the OEM manual matched to the 2021 model year, covering the 2.5L I4 and 3.8L V6 and 2.5L I4 across the DC Crew Cab Pickup 4-Door, SV Extended Cab Pickup 4-Door, SE Crew Cab Pickup 4-Door, SV Crew Cab Pickup 4-Door, S Extended Cab Pickup 4-Door, S Crew Cab Pickup 4-Door, Platinum LE Crew Cab Pickup 4-Door, PRO-4X Crew Cab Pickup 4-Door, LE Crew Cab Pickup 4-Door, XE Crew Cab Pickup 4-Door trims. Specifications and procedure sequences are the ones Nissan published for this year.
What 2021 Frontier problems does it help with?
2 recalls are on federal record for the 2021 Frontier, covering power train. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Nissan dealers.
Does it include 2021 Frontier 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 Frontier years and 2021 Nissan models
2026 Frontier · 2025 Frontier · 2024 Frontier · 2023 Frontier · 2022 Frontier · 2020 Frontier · 2019 Frontier · 2018 Frontier · 2017 Frontier · 2016 Frontier · 2015 Frontier · all 29 years
2021 Nissan 370Z · 2021 Nissan Altima · 2021 Nissan Armada · 2021 Nissan GT-R · 2021 Nissan Kicks · 2021 Nissan LEAF · 2021 Nissan March · 2021 Nissan Maxima · 2021 Nissan Murano · 2021 Nissan NP300 · 2021 Nissan NV1500 · 2021 Nissan NV200 · every 2021 model