Most 2010 Civics use 195/65R15 tires on base DX/LX models with 15-inch wheels, 205/55R16 on EX/EX-L models with 16-inch wheels, and the Civic Si uses 235/40R18 tires. Always verify with the door jamb sticker or owner's manual, because wheel options or regional packages can alter the spec.
Common OEM tire sizes by trim and wheel size
Below is a quick guide to the tire sizes you’re most likely to encounter on US-market 2010 Civics across the main trims. If your car has dealer-installed wheels, the size can differ.
- DX and LX (15-inch wheels): P195/65R15
- EX and EX-L (16-inch wheels): P205/55R16
- Civic Si (18-inch wheels): P235/40R18
These sizes reflect typical OEM configurations for the year and trim. If you’re unsure, check the tire placard on the driver’s door jamb or your vehicle’s owner’s manual to confirm the exact size for your specific car.
How to read the tire size code
Understanding the numbers helps you verify the correct replacement size and compare alternatives. Here’s what the code means:
- P refers to a passenger-car tire
- 195/65R15 means 195 mm width, 65% aspect ratio, radial construction, and 15-inch wheel diameter
- Load index and speed rating (such as 91T) may follow the size
- Always replace with tires having the same diameter to preserve speedometer accuracy and gearing
When you replace tires, you should aim to keep the overall diameter within a small tolerance of the original, typically within 3% to avoid affecting ABS, suspension, and speedometer readings.
What to do if you need a different size
If you’re considering a size outside the OEM specification, here are practical steps to take:
- Check the overall diameter: compute using width, aspect ratio, and wheel diameter; stay within ±3% of the OEM diameter.
- Consult a tire professional or dealership to confirm compatibility with the vehicle’s sensors, ABS, and transmission.
- When changing wheel sizes, ensure the new wheels have the same or appropriate offset to avoid rubbing and alignment issues.
By staying within recommended sizes or working with professionals, you maintain handling, fuel efficiency, and safety.
Summary
In summary, the 2010 Honda Civic typically takes 195/65R15 on base models, 205/55R16 on EX/EX-L, and 235/40R18 for the Si. Always verify with the door placard or manual and consult a tire professional if you plan to use non-OEM sizes.