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Discussion Starter · #1 ·
I'm concerned that my PCS isn't working, although the tech at the dealer said that all sensors are working properly. A deer ran across the road about six feet in front of my vehicle. It was at night, I was on cruise at 40 mph. The car did NOT react in any way. If I hadn't hit the brake (reflexly) I would probably have hit this large animal.
Any similar experiences or doubts about the "automatic braking" feature of the PCS?
 

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I believe the PCS calculates how fast you are approaching another object and isn't designed to calculate objects passing in front of the vehicle. There is a PD (Pedestrian Detection) system, but I'd assume at the seed a deer runs it would probably not activate.
 

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Discussion Starter · #3 ·
I believe the PCS calculates how fast you are approaching another object and isn't designed to calculate objects passing in front of the vehicle. There is a PD (Pedestrian Detection) system, but I'd assume at the seed a deer runs it would probably not activate.
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Discussion Starter · #4 ·
The manual indicates that if a pedestrian or cyclist cuts in front of you while you are going "7 to 110 mph" the PCS activates and will apply the brakes if you don't. If an object goes across in front of you (say a running child) how is that different from a deer?
 

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Discussion Starter · #5 ·
The manual indicates that if a pedestrian or cyclist cuts in front of you while you are going "7 to 110 mph" the PCS activates and will apply the brakes if you don't. If an object goes across in front of you (say a running child) how is that different from a deer?
The service people at Lexus could not clarify this for me. Further, they have "no way" to "field" or "road" test this function. I wonder if it exists other than in the manual and the sales talk. I don't want to find out on the highway that this is a function that works only to lessen the impact of a crash rather than avoid a crash.
 
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