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Cruise Control Problem

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCruise Control Problem

Leading reported evidence

Check bulbs in the high mounted brake light

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
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Unsuccessful attempts
1
Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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

Check all the bulbs in the high mounted brake light.

Original post Read captured discussion
Cruise Control Problem
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Leading evidence: 'Check bulbs in the high mounted brake light' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check bulbs in the high mounted brake light' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check bulbs in the high mounted brake light

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

Check all the bulbs in the high mounted brake light.

Original post Read captured discussion
Cruise Control Problem
Coverage and how to read this overview

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.

5 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.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Recently, on my '02 cab, I've noticed that the cruise control won't go on, i.e, the little green light doesn't light up. If I restart the car, the cruise control works. Second anomaly: I started off with the cruise control still on from my previous drive. While I was driving without the cruise control engaged, the green light went off at some point and would not go on until I restarted the car. Anyone experience this or have any idea what's happening? TIA.

POST 2Original post

That's a new one for me... I would certainly take that in to Porsche.

POST 3Original post

Check all the bulbs in the high mounted brake light. All of them need to be working in order for the cruise to work. A single bulb out will cause the intermittent function you state.

POST 4 / ORIGINAL POSTEROriginal post

I think that's it. One of the bulbs seems to be out. I knew I'd get the answer if I posted here. Now can you advise how to access the bulbs?

POST 5Original post

The bulb replacement proceedure is in your manual. If you can't find yours I'll look it up in mine foryou. I have a 2003 C4S, I assume the proceedure on the bulbs will be the same?

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