2010 jeep liberty no start with gate lite on dash

scan it.
the CEL lamp on running means. "SCAN ME.," now.

the gate warning means just that, gate in ALarm.
and needs to be repaired.

Try a battery with more cranking amps cannot hurt. If it is a diesel have an engine heater put on, there are also glow plugs which preheat the combustion chamber on a diesel try to cycle the glow plugs twice before cranking. a battery warmer is also a good idea and thinner oil for the cold season.

can i buy a comma? says vanna white?? LOL !
ok, the battery drains, so you got a DRAIN, called phantom drain.
or dark current.!!
we use a thing called an AMMETER (DMM) to find all drains, easy

do you have one, want to learn or just wanting wild guessing.

on any 08 liberty, we check the scan tool data.
oops it shows battery low, wow even the PCM sees that.

new batteries do not fix drain.
nor dead alternators.

get it serviced, by a pro. ?

1: charge battery (rested its 12.6vdc )
2: start engine, scan tool shows, what DTC errors (post em')
3: battery voltage is , 13.3, to 15vdc running, if not charge system is faulting.
4: ok all that is ok, i then key off and measure bettery cable neg lug drain current, if 0.010a to 0.040a its ok, if over 0.1 amps its a drain.
we then find the drain cause, ASK? its not hard with a meter.
but i bet all you wanted is a wild guess.

Immobiliser fault, disconnect battery from poss terminal for 15 seconds, reconnect battery close hood and doors lock car with fob wait 20 seconds open car and start car.

the gate lock has issues, get it serviced.
if a DIY person? get the FSM and read that page. under body chapter.

Time for a code check.

From your description it seems as if the relay is bad or else the battery is shorting out inside and needs to be replaced. I would change the relay to start.

have the fault codes read as that will indicate the problem area

Hello, There is something you can try, but we need more info about any sounds the engine makes and if the engine is cranking or completely dead when you turn the Key to Start.

If the engine does not crank, there are switches under the floor pedals for the Brake and clutch(if a stick shift). These often get hit by a wayward shoe and the switch is knocked out of position or broken. Check there and see if that's the problem. Another switch is part of a Safety device that requires your Auto Transmission to be in Park or Neutral. It should be under the dash and possibly at the bottom of your steering column.

If there is a click or stream of clicks, rattles, and so on when the Key is in Start; you need to recontact us.

Now when you say "won"t start" if the engine cranks and does not run, this would be a different problem than one caused by a Starter. You would either have no fuel activity or no spark. We would need to know from you what the engine is doing.

is vehicle fiily in park position may want to see if vehicle will start in neutral