# Instrument Panel Lights

**URL:** <https://community.cartalk.com/t/instrument-panel-lights/70909>\
**Category:** Maintenance/Repairs\
**Tags:** gauges, grand-cherokee, jeep\
**Created:** [February 12, 2012, 8:10am UTC](https://community.cartalk.com/t/instrument-panel-lights/70909 "2012-02-12T08:10:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![LES\_PAUL](https://avatars.discourse-cdn.com/v4/letter/l/8797f3/32.png) [@LES\_PAUL](https://community.cartalk.com/u/LES_PAUL)\
**Post date:** [February 12, 2012, 8:10am UTC](https://community.cartalk.com/t/instrument-panel-lights/70909/1 "2012-02-12T08:10:48Z")

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What could cause my Instrument lights to stay on for a while as well as my gauges to malfunction when the temperature is cool.? It just started doing this.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [February 12, 2012, 7:16pm UTC](https://community.cartalk.com/t/instrument-panel-lights/70909/2 "2012-02-12T19:16:06Z")

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Start looking for a bad ground in the area behind the instruments and you will probably find the culprit.

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**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\
**Post date:** [February 12, 2012, 7:24pm UTC](https://community.cartalk.com/t/instrument-panel-lights/70909/3 "2012-02-12T19:24:02Z")

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When you say ‘instrument lights’, do you mean the warning lights, or the nighttime illumination of your speedometer, etc?

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [February 13, 2012, 10:05pm UTC](https://community.cartalk.com/t/instrument-panel-lights/70909/4 "2012-02-13T22:05:01Z")

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Good point Oblivion. If you are talking about the warning lights in the dash rather than the dash illumination lights then I suspect you are going to need to replace the alternator.
