The service and repair manual for the 2021 Kia K5 — 1.6L I4 and 2.5L I4 engines, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Kia published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 1.6L I4 — 98 cu in, DOHC, turbocharged 2.5L I4 — 152 cu in, DOHC, turbocharged |
| Trims | LXS Sedan 4-Door · EX Sedan 4-Door · GT Sedan 4-Door · LX Sedan 4-Door · GT-Line Sedan 4-Door |
| Federal record | 5 recalls · 227 complaints · 131 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 K5 manual
03 / ContentsSections in the manual
- Quick Lookups 185
- General Information 1,536
- Accessories & Equipment 7,388
- Heating, Ventilation & A/C (HVAC) 506
- Body & Frame 607
- Maintenance 11
- Brakes 1,986
- Restraints 1,217
- Drivelines & Axles 42
- Steering 1,251
- Electrical 467
- Suspension 378
- Engine Mechanical 421
- Transmission 613
- Engine Performance 7,197
04 / Known issuesRecalls on federal record for the 2021 K5
- Fuel System, Gasoline · 25V794000A melted fuel tank can leak, increasing the risk of a fire.
- Power Train — automatic transmission · 22V760000Loss of drive power increases the risk of a crash.
- Air Bags — air bag/restraint control module · 21V164000In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can i.
- Fuel System, Gasoline — delivery › hoses, lines/piping, and fittings · 21V519000A fuel leak increases the risk of a fire.
- Air Bags — side/window › curtain · 23V149000Air bags that do not deploy as intended can increase the risk of injury in a crash.
Owners have filed 227 complaints and Kia has issued 131 technical service bulletins for the 2021 K5. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 K5 manual
Is this manual specific to the 2021 K5?
Yes. It is the OEM manual matched to the 2021 model year, covering the 1.6L I4 and 2.5L I4 across the LXS Sedan 4-Door, EX Sedan 4-Door, GT Sedan 4-Door, LX Sedan 4-Door, GT-Line Sedan 4-Door trims. Specifications and procedure sequences are the ones Kia published for this year.
What 2021 K5 problems does it help with?
5 recalls are on federal record for the 2021 K5, covering fuel system, gasoline, 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 Kia dealers.
Does it include 2021 K5 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.
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