Skip the auto shop - Our mechanics make house calls

Q: Cadillac CTS OnStar disconnection

asked by on

First, the engine option listed on this site for Cadillac CTS, of 6.2 L V8 turbo is incorrect--that engine is supercharged, not turbo. My actual issue is, as I have been getting a lot of misinformation and sneaky tracking after being automatically enrolled from OnStar in SmartDriver when I bought the car, contrary to their assurances and stated policy, and was mysteriously disenrolled while I was inquiring about it on the phone yesterday, two months later, even though they said they couldn't do that, I don't trust them (there is a ticket open with their TechTeam who is supposed to call me back within a few days about these issues). My question is if I actually disconnect the OnStar module as you show on your site, what functions will I lose in a 2017 Cadillac CTS V. Will I still be able to use the native GPS navigation; will I still have voice command use for phone commands, navigation commands, etc.? I read somewhere that the ABS and other systems are now tied in also.

Hello. The OnStar system is wired to receive a wide variety of inputs so that immediate assistance can be provided in the event of an accident. For this reason it may very well be possible that the system is tied into your vehicle’s engine management, ABS, and electrical systems. While you wait for the OnStar customer service team to contact you, I would refer to a dealership for details or specifics on what features, if any, would be disabled if the onstar module is disconnected. You may also be able to find details about this in the owner’s manual, or the OnStar instruction manual.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Hi

If you have a question then you need to ask with as much detail as possible so we can help answer your problem.

Q: 2004 Cadillac srx will crank but won't start

For a sudden failure like this, I would check to see if the fuel pump has failed and check for spark at the spark plugs. If no spark, suspect that a key global sensor such as the crankshaft position sensor...

Q: Ignition switch starting in section step. All accessories come on dash but the check engine light is not coming on.

Hi, thanks for writing in. I am not completely sure how to interpret your question, so I will touch base on a few things hoping it will help you out. If I interpret correctly, your car takes two key cycles,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...