2026 Civic Si - Honda Information Center
2026 Civic Si

Safety & Driver-Assistive Features

Advanced Compatibility Engineering™ (ACE) Body Structure

What’s the Benefit?

The Advanced Compatibility Engineering™ (ACE™) body structure enhances occupant protection and crash compatibility in frontal collisions.


The Feature:

The ACE structure is featured on all Civic models.

  • The latest iteration of the ACE body structure is designed to increase energy absorption in small overlap frontal collisions.
  • The beefed-up body structure helps enhance occupant protection in a broader range of frontal collisions.
  • All Civic models are expected to achieve top crash-test ratings.

Advanced Compatibility Engineering™ (ACE) Body Structure

2026 Civic Si Feature Guide

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Civic Safety Features Honda Sensing® Driver-Assistive Features Advanced Compatibility Engineering™ (ACE) Body Structure Multi-Angle Rearview Camera with Guidelines Driver’s and Front Passenger’s Front Airbags (i-SRS) Front Side Airbags Outboard Rear Side Airbags Side Curtain Airbags with Rollover Sensor Seat-Belt Reminder System for All Seating Positions Child Safety Features Collision Mitigation Braking System™ (CMBS™) (Honda Sensing® feature) Lane Departure Warning (LDW) (Honda Sensing® feature) Road Departure Mitigation System (RDM) (Honda Sensing® feature) Adaptive Cruise Control (ACC) (Honda Sensing® feature) Lane Keeping Assist System (LKAS) (Honda Sensing® feature) Auto High Beam Headlights (Honda Sensing® feature) Blind Spot Information (BSI) System (Honda Sensing® feature) Cross Traffic Monitor (Honda Sensing® feature)