How do I reset the onstar system on a 2007 Cadillac DTS

SOURCE: 2007 cadillac escalade... Onstar disable

you can remove the fuse however you will get a call asking if everything is okay.

SOURCE: 2008 Cadillac DTS navigation manual

try www.edmonds.com

SOURCE: 2007 CADILLAC SRX

Recently had the same problem my friend......The O2 Sensor can simply mean that your gas cap is not on tight enough, or possibly your purge solenoid.
I am just a regular average guy, and I am retarded when it comes to cars, so I asked a mechanic on ask.com cadillac, or something like that...anyways......The purge Solenoid only costs about 35 dollars, and is super easy to replace. The hard part is getting your card started again after your battery is hooked back up because of the Cadillac theft detterant system. After you put the Purge Solenoid in, and hook up your battery make sure you do the following to bypass the security system:
1. Turn key in ignition all most all the way on, but don't turnover.
2. Leave in this position for 10 min exactly
3. Turn key back for five seconds
4. Repeat this sequence four addtional times.
5. On the fourth time the car will turnover, and you are good to go.

I hope this helps, cause cadillac almost bent me over on this one....
Dom

SOURCE: 2007 Cadillac dts cigarette lighter fuse

You will find all the fuses under the back seat driver side.

saturn_tom

• 3 Answers
• Posted on Jan 12, 2014

SOURCE: resetting tire pressure monitor system

I had the pressure light come on in my 2008 Saturn Vue. It stayed on for two months until I changed the battery in my car. Then, the light went out! I would recommend ensuring the tires are at the correct pressure and disconnecting the battery ground terminal for at least 5 minutes!