The 03 saturn ion has 5 or 6 digits for the odometer?

SOURCE: starting problem for 03 saturn ion when engine is warm

replace the ign switch. the key has nothing to do with it.

SOURCE: odometer not working

Get rid of this car. There is a design flaw in that the timing chain does not get oil and will eventually fail. Some failed in as little as 20,000 miles. Mine failed at 78,000 miles which is real common. I just read on here someone was lucky to get over 100,000 miles on theirs but do you really think you will be that lucky?

SOURCE: In my 2006 Saturn Ion sedan the speedometer

i would suggest checking the fuses to see if an accessory fuse has burned. The box with the fuses is under the dash on the driver's side, but there is a chance this system's fuse could be in the fuse box under the hood by the battery.

Hope this helps,
matt

SOURCE: how to replace the heater bkower motor

on the passenger side of the car under the dash there sits the hvac box they a 1 connector to it and 3 screws little ones,remove then and it falls out,,install new,,,easy

SOURCE: replace serpentine belt on 03 Saturn ion ?

for the most part there is a tensioer holding the belt on give these websites a try www.alldatadiy.com and www.autozone.com wish you the best of luck Michigan Man.