Is comma better than Toyota Safety Sense 2.5?
Consider comma for a supported car if the attention-checking approach and openpilot’s driving experience appeal to you. Do not buy it on the assumption that everything described for TSS 2.5+ also applies to TSS 2.5.
What your factory system already does
Toyota documents TSS 2.5 separately from 2.5+. Both include changes to collision assistance, and the applicable LTA and cruise functions need to be checked against the actual vehicle.
What could make comma worth it
For a commuter, compare lane centering, speed control and the attention reminders you actually encounter. Collision-avoidance feature lists answer a different question from which system you prefer for steady highway assistance.
What to check for your car
Confirm that the car has TSS 2.5 rather than 2.5+. Toyota’s cited precautions assign cruise curve-speed reduction to 2.5+ and 3.0; do not automatically copy that feature into a 2.5 comparison.
Good questions. Clear answers.
Are TSS 2.5 and 2.5+ the same?
No. Treat them as distinct packages and use the exact model’s manual. A nearby version number is not proof of identical features or comma support.
Can I expect a guaranteed improvement?
These are document-based comparisons, not a same-car road test. Decide based on the exact supported configuration and the behavior you want to improve. Both systems require you to supervise and take over when needed.
Car checked? Ready to choose?
A good start comes with the right fit.
Check the exact car requirements first. Then see the current comma four offer and the correct harness at comma.ai.
Referral disclosure: eligible new customers get $50 off. CommaGuide gets $50 after a qualifying purchase. Terms apply.
Your next step
Keep it simple.
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