6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWhen PSM intervenes, are the brake lights on?
Leading reported evidence
Use car's brakes and cut engine power
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Suggestion
However, if you are really going into the turn way too fast for whatever line you are taking, PSM will use the car's brakes and cut engine power to try correcting the problem.
Leading evidence: 'Use car's brakes and cut engine power' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use car's brakes and cut engine power' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Use car's brakes and cut engine power
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
However, if you are really going into the turn way too fast for whatever line you are taking, PSM will use the car's brakes and cut engine power to try correcting the problem.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
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Generation: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I rather doubt it. Unless of course having the brakes on yourself was what led to PSM activation.
Corning too hard....no.
Virtual LSD.......no.
Trac activation.......no.
Simply can't see any reason to inform the following driver of any of these.
The following driver should have seen your car getting out of shape and that should have some warning a head of time.
I've follow cars that spun in front of me in DE and club racing and every time I can tell that the car in front of me is going to spin.
Sometimes it take a couple of laps before the car spin but I can tell by looking at the line the car in front of me.
"Seen your car getting out of shape".
First, I have never "seen" my 01 C4 get out of shape. The only possibility was 3 laps at PIR with a professional driver at the wheel and he immediately turned PSM off as he buckled his seat belt.
My 01 RX will often activate its VSC in a hard turn in a puddle of water but I would absolutely defy you to tell from behind. Hell, the VSC reacts so quickly and the visual annuciation is so short the first few times even I couldn't figure out what the aural alarm was about.
All these systems have the ability to detect being "out-of-shape" (or more3 correctly, potentially out of shape) long before our seat bottom sensors, even the educated ones, will notice.
And granted, PSM, Porsche's implementation, is supposed to give nthe driver time to react to his/her "seat bottom" sensors, but I still believe. even so, that its reaction time will defy the judgement from behind.
If you're referring to the brake lamps in the taillamp assembly, the answer is no - they're not illuminated.
PSM activation does illuminate the lamp in the gauge cluster, however.
J
Juan:
Of course you cannot see your car getting out of shape because you're in the car. I was refering to the driver in the car behind you.
If PSM is correcting a minor mistake the driver in the car behind would not notice anything. Whether the brake lamp is illuminated or not would not make any difference.
However, if you are really going into the turn way too fast for whatever line you are taking, PSM will use the car's brakes and cut engine power to try correcting the problem. In this case the driver in the car behind you should notice that you are getting out of shape before or when PSM kick in.
Kam
This is a source reference. Confirm exact model applicability in the original material.
