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.
Activation Levels For The Collision Protection System
The table below shows how the SRS system reacts in the event of a frontal impact.
Level 1= Low speed collision
Level 5 = Severe collision
| Collision level | Front seat | Rear seat / Rear seat 3rd row | |
| Seat belt not in use | Seat belt in use | ||
| Level 1 | No corrective action. | The seat belt tensioner is activated. The airbags are not deployed. |
No corrective action. |
| Level 2 | The airbags are deployed with a slow build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. The airbags are not deployed. |
No corrective action. |
| Level 3 | The airbags are deployed with a slow build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. The airbags are deployed with a slow build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. |
| Level 4 | The airbags are deployed with a fast build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. The airbags are deployed with a slow build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. |
| Level 5 | The airbags are deployed with a fast build-up of pressure. Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. The airbags are deployed with a fast build-up of pressure. The adaptive steering column of the collision protection system is activated (XC90 USA/CDN only). Ventilating the airbags (only XC90 USA/CDN). |
The seat belt tensioner is activated. |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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