Light on the left side of the speedometer is dimmer than the right... and rest of the dash. Checked the fuses and they're good soooo probably a light is out... right? Pictures to come soon.

Yeah, sounds like a bulb burned out. Gonna have to pull the cluster to replace it.

There are 2 types of bulbs in the instrument cluster and both are replaceable 1) LED bulbs for specific on/off lights such as CEL and 2) regular incandescent general cluster back lights. When one of the latter dies then that portion of the cluster appears dim as it's only being light by "scatter" from the remaining incandescent bulbs. You will need to remove the cluster to replace the bad bulb and I'd suggest doing all of them while you are in there.

I have cluster removal instructions with pics for an 04 which probably are fine for 05/06 if you email me I can provide a copy.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

OEM part no.:04839738AA, plenty of them available on line!
GE Lighting 161 Instrument Cluster Bulb - Direct Fit (bulb only!)
They also now have LED replacements available for the incandescent dash bulbs...

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
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2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve