Upper Left Warning Light Means "no horn?"
What does the upper left warning light mean? It looks like an old style bike horn with an 'x' through it. I'm having several issues and this is a new light that's on.

If so, it's the Automatic Transmission Failure warning.
It lights up in ignition position II and should go out after the bulb check cycle is completed.
If it comes on or remains on when the engine is running, this indicates a transmission fault. This will result in heaviness in gear selection or gear changes or 'limp home' mode.
Graham
Yep, it's the transmission warning light. I threw one the day I pressure washed the engine and couldn't figure out just what the symbol was meant to be either. Now it makes sense. Last night I had the 3rd left warning lamp illuminate. That one is a round circle with a wick coming out the top & an "X". Thought it was a warning for a bomb onboard. LOL. Luckily found out it just meant a brake lamp was out.
Did this occur coincidentally with the other gauge/warning light craziness mentioned in your other thread? Just wondering.
After my last episode (a couple weeks ago) with coil failure and accompanying dashboard insanity I was left with an air bag warning light resolutely glaring at me.
My speculation is that the electronic noise/backfeed/whatever-you-wanna-call it from the coil failures can corrupt the instrument pack software.
<shrug>
Cheers
DD
Doug, this is in part with my other issues, but the crazy lights seem to have stopped. The only ones that stay on when my car is running are the check engine and the transmission.
Do you have a scan tool to pull the trouble codes? That would be most helpful at this point!
Cheers
DD
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I have same issue on my mother's car, with the light up top left, on 1997 XJ6....looks like a bike horn light on - then when car driving not even one minute, the car dies...battery light comes on and it shuts down
i'm told it's a security issue....any help?????
i'm told it's a security issue....any help?????
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99xk8guy
XK8 / XKR ( X100 )
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Sep 29, 2025 10:51 PM
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