Chevy/radio/clock radio stays on with no key also clockstays on and kills battery

Could b faulty ignition switch check multiplug back of switch first

your radio clock is unlikely to kill your battery in any normal period of time, sounds like there is another problem with the switch and circuits connected to it. disconnect the battery cable in a dark area, there should be very little or no spark involved, if there is a significant spark then there is another problem, removing fuses one at a time and repeat test, may narrow down the problem circuit but may not.

Modules or Relays are not going to sleep
or timing out & running the battery down

Have to leave the doors closed up to 1/2 hour with a
an amp meter on the battery & pull one fuse at a time
to isolate the circuit

You Tube has video on (Parasitic Current Drain Test)

Sorry to say, but none of these are related. Fuel gauge is probably the sending unit in the tank, could be wiring. The air bag could be the module,the bag unit, the sensors, or bad wiring. The radio is probably your most likely choice for battery drain. The three main things I have found to drain batteries are the radio, the starter, and the alternator. These three will kill a new battery in 1 to 2 days, An older battery over night. Shorts in the interior lighting is 4th..

yeah my problem is the same the shifter has to sometimes be imunipulated to assure its in park or the ignition will not turn all the way off leaving a weak or dead battery the following day. i would play with the shifter to be sure its in park all the way

turn off engine or turn off key. (not the same
if you loose battery power, many things on these unnamed car can reset, PCM./TCM/ radio/clock and immobilzers. etc.
ask a more direct question.
old post

buy a new battery if this dosnt work trying looking into a starter or ignition relay or coil pack this all will make it not turn over but the radio and clock will work, also look into if your security light is on if so the key could be broke which would make it a problem cause then you have to go to a dealership and buy a new one which might cost a bit. hope this helped :)

does it go off when you open the door?radio and or clock light will stay on for about 10 min till open door,maybe its another problem

Those Luminas all did that. I ran a taxi fleet for awhile that used Luminas and they all had that clock displayed 24/7. It didn't cause problems though, unless we left other things on, or our battery connections were less than perfect. The side post battery was more problem than you might think. Good luck. TT

Sounds to me like you've got a fualty radio. maybe your clock radio was staying on and thats what drained your old battery. I would remove your radio and check the wiring. make sure you don't have any rubbed through wires or anything. If there's no evidence of faulty wiring then try a new cd player. After all, it could be an electrical issue inside your cd player. hope this helps ya out. O and by the way your clock light should be a yellow wire in the back of the head unit i beleive. the yellow wire is constant power from the battery specifically for the clock. you may also want to check your orange wire. that wire is an illumination wire for the radio. hope this helps