Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Honda CivicBattery Location & Size
OEM battery spec from the factory service manual for the 10th Gen (2016-2021) (2016-2021).
Quick Answer
Location
Under hood, passenger side
Battery Size
Group 51R
CCA Rating
410 CCA
Type
Standard lead-acid
Difficulty: Easy — 15 min
Source: Factory service manual — 2021 Honda Civic 10th Gen (2016-2021).
Other specs:All specsOil TypeCoolantTire SizeBeltSpark PlugsTrans FluidHeadlightsBrake FluidCapacities
This vehicle's factory manual
2021 Honda Civic: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
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Frequently Asked Questions
- Where is the battery in a 2021 Honda Civic?
- The 2021 Honda Civic battery is located under hood, passenger side.
- What size battery does a 2021 Honda Civic take?
- The 2021 Honda Civic uses a Group 51R battery with at least 410 CCA.
- How hard is it to replace the battery on a 2021 Honda Civic?
- Battery replacement is rated as easy — 15 min.