We replaced the battery and alternator in our 2003 pontiac grand am about a week ago. Yesturday the battery light came on....We also are having problems when starting the car. When we turn the key sometime it just makes a click and won't start. The click is on the outside of the car. Can't hear it on the inside. My husband thinks it's the ignition switch. Are the problems related to each other or unfortunate seperate problems.

SOURCE: car wont start...sometimes

Sounds like a bad starter solenoid, usually cheapest and easiest to replace the starter and solenoid as a unit. It is always best to check for power between the solenoid and the starter with a test light, if the solenoid clicks but the test light doesn't light up you have found the problem in the solenoid.

SOURCE: 2002 Pontiac Grand prix wont start; unable to remove key

On many cars, if the battery is dead, it locks the key in the ignition. Put a battery charger on the car or replace the battery and give it a shot.

Good luck.

SOURCE: 1997 PONTIAC GRAND PRIX GTP 3.8L supercharged:

The positive battery cable is prone to corrosion at the battery end. Many times, the connector will completely decay loose at the cable end. Replace the cable if that is the case--don't use a clamp-on replacement terminal as they are prone to failure. Make sure the negative cable is in good condition as well. Check the connector interior for a bright lead surface. Check the tightness of both cables at their far end terminals. Hope this helps!

SOURCE: 1997 pontiac grand prix key won t turn ignition

well does the key go in does it turn to the start pos? if the dash dost power up its because the switch is bad if it will power up but not start it can be becuse of the resitor chip depends on what is going on if you cant get power its becuse of the switch