Service stability system,service brake assistance,service steering and t/c light - Cadillac Forum - Enthusiast forums for Cadillac Owners

Go Back  Cadillac Forum - Enthusiast forums for Cadillac Owners > Cadillac Models > Cadillac STS
Reload this Page >

Service stability system,service brake assistance,service steering and t/c light

Cadillac STS The newest installation of the performance sedan from Cadillac, having replaced the Seville

Service stability system,service brake assistance,service steering and t/c light

Reply

 
 
 
  #1  
Old 09-11-2012, 10:21 PM
Junior Member
Thread Starter
Join Date: Sep 2012
Posts: 2
Default Service stability system,service brake assistance,service steering and t/c light

Every time I turn my car on, the dash lights up with all of these errors.
It also doesn't think it is in Park sometimes when I shut off the car. I ran diagnostics and got the following error codes: P0856, P1793, U0121. I've been researching for hours and only found generic error code descriptions, but people seem to think the problem may be the wheel hub. Another forum suggested it could be as simple as finding and replacing a bad fuse that may have shorted out along with disconnecting the battery to reset the codes. Unplugging the battery didn't work, and I have no idea which fuse could be bad, but I'd really rather not pay a dealer for hours of labor to figure out the problem and then overpay for whatever parts I need. Please help!
 
Reply With Quote
  #2  
Old 01-06-2017, 09:07 AM
burn60's Avatar
Junior Member
Join Date: Jan 2017
Posts: 4
Default

I hope there is still someone reading this forum. I have a 2009 cts v6 and the ABS and stability system lights came without codes. The car stops without issue and the tracking system says its off. I can't tell any real difference on handling. What can cause this issue? please help this is my 1st caddy and I want to treat her right.
 
Reply With Quote
  #3  
Old 01-06-2017, 10:37 AM
Member
Join Date: Dec 2016
Location: Northeast
Posts: 88
Default

Sounds like you have a hub assembly that has failed, but I would wait for a tech certified member to chime in with a response. If you do end up replacing one, DON'T go the "el cheapo" route- the inexpensive units have the life expectancy of a state fair goldfish.
 
Reply With Quote
  #4  
Old 01-06-2017, 12:38 PM
slowroll's Avatar
Tech Certified Members
Join Date: Oct 2007
Location: in the mitten
Posts: 3,152
Default

Make sure master cylinder fluid level is not low. Not all scanners will read ABS or Stability system codes. Traction off is related to ABS most likely. You might have codes checked at dealer.
 
Reply With Quote
  #5  
Old 08-23-2017, 05:34 PM
Junior Member
Join Date: Aug 2017
Posts: 2
Default Service Stability System

Had this problem with my 2008 STS V as well as other messages including 0 tire pressure and tire pressure monitor not working. Turned out to be hub assembly. Even the message saying Lane Departure System not available (car does not have it) is no longer displayed. Correct diagnostics from Massey Cadillac in Orlando.
 
Reply With Quote
  #6  
Old 09-18-2017, 05:22 PM
burn60's Avatar
Junior Member
Join Date: Jan 2017
Posts: 4
Default

HA! THE CODE READS c0045, translating to the left rear speed sensor. However, since I changed the sensor the code persists, the wheel hub shows no indication of being bad, e.g. noise or rumble. Is there a way to reset the code without having a code reader?
 
Reply With Quote
  #7  
Old 09-18-2017, 07:08 PM
Junior Member
Join Date: Aug 2017
Posts: 2
Default At first

The diagnosis for mine was also the speed sensor error. But the cure was not a new sensor, it was a new hub. Yep, a bunch more bucks. But it's wonderful not having your car 'yell' out you every day and having traction control back is welcomed.
 

Last edited by MXBSTSV; 09-18-2017 at 07:10 PM.
Reply With Quote
  #8  
Old 02-10-2018, 08:09 AM
Junior Member
Join Date: Feb 2018
Location: Danville VA
Posts: 1
Default

I have just purchased a 2005 STS 4.6L V8 rear wheel drive. I see 2 error messages, Brake Assist is one and TTY is the other. I see from reading this forum what the Brake Asst is likely to be. In my mind TTY is about telephone stuff? I didn't know the car had that capability? Is this pre blue tooth technology?
 
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
xrionx
Cadillac CTS
5
12-28-2011 01:47 PM
jasonscaddy
Cadillac Deville
0
12-10-2011 11:41 AM
mastopietro
Cadillac CTS
2
03-09-2006 10:41 AM


Thread Tools
Search this Thread
Advertising
Featured Sponsors
Vendor Directory