alarm

Okay, changed battery in my 01 Tahoe and now my alarm isnt working. Any ideas?

Could there have been a separate alarm power supply wire leading from the battery that didn't get put back on?

Check for a seperate power wire as stated above. Some installers will route an independent power wire from the alarm to the battery. If you don't find anything, then take a look under the dash for the control unit. When and if you find it, unplug the main harness for a couple seconds, then plug it back in. Sometimes this will reset the microprocessor in the control unit after a power loss or spike.

Thanks, I'll have my husband check it when he gets home.