Cadillac DTS adaptive cruise problems

Filed Mar 1, 2021 · Acceleration, Driver assistance · 58,000 miles · WI

I bought this car, and the steering wheel controls(audio/cruise control) have not worked, prior owner was advised to replace the bcm. Front driver's headlight intermittently goes on and off when driving. The steering wheel switch to adjust the height, angle, and settings for each driver also are not working. Apparently these are known issues. I had similar issues with my 2000 chevy impala, and my 2004 chevy impala ss.

Filed Jun 6, 2017 · 103,500 miles · MA · 1 injury

The factory installed optional glass sunroof of 2005 cadillac deville dts spontaneously "exploded" and shattered. Broken glass rained down inside the vehicle and over the back of the vehicle on to the roadway behind while traveling straight over a uncrowded highway at 62 - 63 MPH approximately at 6:30 am on 6/2/17. Sunroof was closed. The interior sun shade was open. Exterior temperature was about 60f. Interior temperature was about 75f. The car has approximately 103,500 miles on it. There was no previous damage to sunroof or indications of prior damage to the sunroof. There was no sound of crack like when rock hits the windshield or sound of object hitting the car or sunroof prior to the "bang!" as the sunroof exploded. Traffic was light on divided highway and were no trucks in ahead, or cars very nearby. It was an utterly uneventful and non-extreme drive in terms of speed, temperatures, traffic volume, or operation. Cruise control was set. The rear edge of glass remaining in the frame appears to be bent upward whether from the explosion or the air pressure after I have no idea. Submitted as a glass claim to my insurance company.

Filed Jan 23, 2017 · Brakes · 38,000 miles · NV

We have an approximately 14 miles downhill run from the ski slope to I-95. The dts does not compression brake. Cruise control will not hold a downhill speed. So I am on the brakes most of the way down. Halfway down the hill the front end starts to shake violently I am guessing the front brakes are warped from the constant use. I make it down the hill and drive onto I-95s. After 30 or so miles the brakes cool and no more vibration. This is not the first time. I asked the cadillac dealer how to put it into compression braking and they said I cannot do that. There has to be a fix or a recall on that. It is a cadillac which retails for 65k plus when new. The front disk brakes should not overheat and start to warp. Normal speed was the speed limit but without compression braking the cadillac dts accelerates rapidly and constant brake use is needed to keep it to the posted speed limit. I only have 38k on the 2007 cadillac dts. It is the high performance full up luxury model.

Filed Sep 22, 2016 · Brakes · 76,000 miles · MA

When traveling on highway my cruise control kept turning itself off and on. A driver traveling behind me let me know that my brake lights were staying on as if I were riding the brake (which I was not) and then would go off again - this kept repeating. It seemed this was why the cruise control was not working, as it would go off when it seemed like the brake was on & back on when the brake went off. I have since seen reports on line of this happening with other cadillacs and is a problem with the brake light switch. This is a safety problem as vehicles behind me do not know when I am actually braking. I feel there should be a recall but have not been notified of one, nor have I found one when searching on line. I have since learned that other vehicles (gm, but not cadillacs) have had safety recalls for this same problem.

Filed Feb 5, 2010 · Acceleration · 11,000 miles · OH

This happened 6 times. My engine speed would not drop after foot removed from accelerator. 4 of the six times was on freeway exit ramp. I verified that the floor mat was not in any way interfering after the firstime this happened. I contacted my dealer 3 times - central cadillac, and they said they checked and found nothing wrong and that it must have been my floor mat. I know it was not! I don't believe this to be cruise control related as it happened in city traffic twice. When exiting the freeway after braking to stop engine would stay at 1800 RPM to 2300 RPM dependent on occasion. The same RPM range was in city also.

Filed Dec 16, 2009 · Acceleration · 24,000 miles · FL

An example of the cruise control concern is as follows; if the cruise control has been engaged at some speed,lets say 40 MPH and then disengaged and the car decelerates to say about 30mph then engage the cruise control again instead of smoothly accelerating back up to the previously set 40 MPH the car abruptly accelerates and sometimes downshifts and the speed can go up to 45 or 50 MPH before it settles back down to the preset 40mph.this seems to be a very random occurrence and cannot be always duplicated. The speeds at which this can occur are varied. This unexpected acceleration can be very upsetting and I believe in some situations may even present a dangerous situation.

Filed Sep 15, 2008 · Electrical · OH

2008 cadillac dts has several safety problems. *nj the consumer stated while driving, the chimes sounded, the doors unlocked and locked, the gauges and speedometer went to zero and the cruise control disengaged. The consumer stated all of the malfunctions happened simultaneously. The traction light then illuminated, the gauges would come back up and the following message appeared on the drivers information screen that read service brake assist, service park assist, service stabilitrak and cruise will not resume you must reset.

Filed Jun 13, 2007 · Acceleration · MN

Cruise control does not maintain speed downhills within reason. Freewheel on all downhill grade as fast as gravity allows. Easily can go 15-20 over set speed on normal highway conditions. First vehice owned with this condition. Potential safety and speeding ticket problem. Dealer states thats the way it is. Fix is don't use cruise when there are hills per owners manual.

Filed Mar 28, 2007 · Acceleration · 80 miles · KY

Tl*the contact owns a 2006 cadillac dts. At approximately 55 MPH the vehicle accelerated while driving downhill and utilizing the cruise control. The contact stated that the vehicle must be downshifted in order for it to regain normal speed. The contact had taken the vehicle to the dealer several times. The dealer performed a diagnostic and found nothing wrong with the vehicle. The dealer stated that the failure was due to the vehicle's design. The failure mileage was 80, the current mileage was 14,800.

Filed Dec 27, 2006 · Acceleration · 6,500 miles · FL

My 2006 cadillac dts has adaptive cruise control. I have experienced 3 episodes of police radar interference with this feature. The symptom is that the cc indicates that a car is immediately in front of the vehicle. It sounds the alarm and applies the brakes as strongly as the feature allows. The workaround is to immediately hit the gas or kill the cc to get back up to spped and avoid a rear end collision. I had my dealer test the unit and validate the alignment. The unit tested error free. I have experienced the problem with a florida state police car 1 time and hillsbourogh county police cars 2 times. I contacted the county and they took a firm position that it couldn't be their radar units. I frankly don't care where the problem is. If other people are experiencing this it will escalate to a fatality inducing situation. I may alo take the pfoblem to the fcc as this is obviously a bandwidth problem on the part of the police radar units or the cadillac adaptive cc module. Firsy failure occurred when I was following a police cruiser who was approx 200 feet ahead of me and in the adjacent lane (the one to my right) there was no oncoming traffic and no one within 500 feet to the rear. Without warning my car went into emergenct stop and spunded the proximity warning. I tapped the on/off switch and brought the car up to speed. It has also failed as I pass a police car that is sitting perpendicular to the road. The duration is short as you are rapidly passing thru the radar cone. However, I had this happen on the howard franklin bridge over tampa bay and that is a terrible place of a car to suddenly slow down with no apparant warning. I would venture to guess that few people actually use this feature. It is a fantastic function but it is somewhat complex to use and learn how to anticipate. Please feel free to contact me for additional information. Again, no idea as to which element is a fault.