Lost erything after chancing tirer it's like the car just what's to louck it self fob will not work no lights on dash

car came with 2 key/fobs new
lost the second one>?
never have just one or go broke fast.

red lamp on dash is IMMO SECURITY LAMP
IT CUTS SPARK AND FUEL. (AND ENGINE FOR SURE)
there are only 3 CURES

1. THE DEALER FIXES IT
2. OR SOME LOCKSMITHS CAN., CALL THEM.
3. SOME CAR SHOPS CAN, CALL THEM.

BUY THIS CAR DEAD?OR JUST LOST THE FOB
IF JUST LOST THE ELECTRONICS IS GOOD
SO JUST SEE THE 3 CHOICES

GM SATURN ION 04.
IMMO , lost both keys? and now IMMO stops spark.
well if you keep hacking it ,the thing will self brick it sell
far WORSE ,making repairs 300% $more, , or$ more.
if it was this easy to do(hacking) all cars would be stolen!
this is IT doing its JOB perfectly. see?
lost the users guide , in glove box, it is free. to get.
it tells you what to do. for SURE
see page lost all keys and read
a dealer only fix. (some locksmiths have the $5000 tool. but if self bricked or bad dash electronics NO)
page 2-17 read.

https://procarmanuals.com/saturn-ion-2004-owners-manual/

there are no PASS-LOCK hacks,

You can't do anything ,unless you have diagnostic computer . Check codes , program key etc.... Call a mobile lock smith or have towed to the dealer .

rule 1: check all fuses in dash and under hood first. (always)
get the FSM and read that.
or call a lock smith , most can fix newer style cars.
most cars with this security, devices, (pain)
you open the glove box, and take out the operators guide
read the page , per above."security" and door locks.

see what lamps in the dash glow? , when security is blocking you.
easy huh, RTM. (the manual is free, from HONDA,!) get one.

if there are no warning actions in the lamps. then the system is faulting.
you can do the following to must cars.
1: reset battery , pull neg. lug on battery wait 5 minutes put back
2: or reset the FOB controller under-dash and do the FOB learn mode. (its in the manual , is unique for all cars made)
i guess ? there are no Honda dealers, in town?
i guess ? no ASE service shops?
or no lock smiths.
if no 3 times? then you need the books, no books, no joy.
get the books on the system and read them and be self sufficient.

or
if lucky you can google all day and find these books.
luck does happen.

keep in mind the FOB will never work if the cars controller has no power, (fuse blown) or the FOB lean code is lost. (push the learn button, or as the book states)

I had a problem where my key fob did not lock or unlock the car, Renault Clio Dynamique, but the central locking button in the car did still work and engine turned over fine. Changed the key fob battery still nothing. Read online about disconnecting and reconnecting the car battery, (negative only) and hey presto it worked! All working fine now!

You got a one in three chance that it's the key. It could also be the ignition or TDM. (Theft Deterrent Module) You will find everything you need to know here...

http://vatspasslockpasskeysecurityhelp.yolasite.com/

loose connection somewhere in main harness.

Had same problem. Have mechanic (or you) check fusible link. If it's a block type connector, chances are one or more of the connectors are bad.

more than likely....blower motor resistor, normally located next to blower motor passenger
side under dash 2 screws & a plug

check fuse 39, 10 amp red color first. panel is on dash by dirver knees.