Left key in ignition drained battery charged battery fully put it back in still wont start but it is backfiring

ignition replaced ???? Ignition switch , the electrical part or key lock cylinder and key ? left switch on 10 minutes ???? That won't work on your vehicle ! Light's lit on insturment cluster ? Car with padlock symbol ,check engine ,service engine soon etc.... The starting system on your vehicle is computer controlled as many fuctions are ! The ignition switch is a low voltage input to the BCM - body control module . Your best bet , take it back to the dealer .

look at relay and wire connections to starter if power to starter than starter solenoid or starter gone bad it no power check battery --key ,if worn ignition may not be reading key -if key has chip in it chip may have gone pad --ignition switch went bad

Fully charge the battery first disconnect it from the vehicle, replace the relay borrowed from another spot, try it

Most cars do this including the head lights , so the starter and ignition have less drain while starting. not sure if your model does this, If every thing is ok after starting nothing to worry about. If it wont start clean the battery terminals and check charging rate and battery.

If your battery is charged, could be a starter or ignition switch problem.

charge battery fully do not jump it turn key on for 30 sec than offf ,car should start

it is most lightly the stator or voltage regulator in your charging system not charging your battery while running, thus runs the battery dead. If your battery is completely drained, which usually is the sign when you have no lights and backfires and the battery has no juice left to support the spark plugs, and finally gives up, and thus won't take a jump. This is a common problem. Battery needs to go on a charger and fully charged before you can conduct any electrical output test from the stator or voltage regulator. Just happened to me again this week. Hope this helps.

Put the key in the ignition switch on,now remove the battery wires and replace with the key left in the same posistion.

try checking the main relay under the dash

You left the key too long in the ignition switch. This sent an alert as if it were being stolen. Remove the key from ignition. Lock all doors. Wait about an hour or so. When you open the doors, put your foot down on the gas pedal and release. Put the key into the ignition and turn the car on.  Make sure you have the shift in "Park" position.