Cadillac CTS Problems

Question

I have a 2009 Cadillac CTS while driving I get a warning light that comes on saying "Service All Wheel Drive" also a "Service Stabilitrak" causing check engine light to come on and engine losing power. After taking it to dealer they couldn't tell me much but give me codes that could be causing the issue. I have 3 codes indicating Cylinders 2,4,6 are misfiring and spark plugs should be replaced on all 3 would this be a step in the right direction?

Answer 1

This type of condition are seen alot with Chevy product, Your driving down the road the service tract light comes on and its braking for you when you really need to go faster. Even with this condition, it does not cause a misfire. If this was caused by a CK ENG LT there would be a code that would give the information that the service all wheel drive" is disabled. and its more for  a transmission code such as the TCC solenoid having problems.  Misfire are the usual culprit the ignition coil, As for the  Service Stability Tract light to come on it when the CK ENG LT comes on., it can be caused by a faulty module, use TSB # Recall 14515B here a small copy of the problem :

# 14515B: Product Safety - Chassis Electronic Control Module Internal Contamination - (Feb 2, 2015)

Subject:    14515B - Chassis Electronic Control Module Internal Contamination

Models:     2009-2014 Buick Enclave
            2009-2014 Cadillac CTS (VIN D)
            2008-2014 Cadillac Escalade, Escalade ESV
            2008-2013 Chevrolet Avalanche
            2009-2012 Chevrolet Colorado
            2007-2014 Chevrolet Silverado HD Cab Chassis
            2007-2014 GMC Sierra HD Cab Chassis
            2007-2009, 2014 GMC Sierra HD
            2008-2014 Chevrolet Suburban, Tahoe
            2008-2014 Chevrolet Express
            2012-2014 Chevrolet Impala 'W'
            2009-2014 Chevrolet Traverse
            2007-2013 Chevrolet Silverado
            2007-2009, 2014 Chevrolet Silverado HD
            2009-2012 GMC Canyon
            2007-2013 GMC Sierra
            2009-2014 GMC Acadia
            2008-2014 GMC Savana
            2008-2014 GMC Yukon, Yukon XL
            2008-2009 Hummer H2
            2009-2010 Hummer H3, H3T
            2009 Saturn Outlook
            2008-2009 Saturn VUE
            2014 Chevrolet Captiva
            2009 Saturn Outlook
            2008-2009 Saturn VUE

When the CK ENG LT comes on it suppose to disable the ABS system , the reason the vehicle is not a manufacuer specification in your case it can not do that