Last post on Nov 28, 2013 at 6:00 PM
You are in the Cadillac DTS
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Cadillac DTS, Electrical, Sedan
#60 of 99 2006 DTS will not start
Sep 10, 2009 (6:04 am)
2006 DTS Performance with 11,600 miles. Went into the store and came out turned key to start position and light on dash went on and nothing happened--car would not start, no clicking, no nothing. Half of the electrical seemed to work. Door locks and windows would not work nor keyless remote. Dash was displaying messages such as service parking assist, service air bag, left rear door open. Tow truck was called and battery was in fine condition, DTS towed to Cochran Cadillac Pittsburgh. While removing car from flatbed tow driver turned key and vehicle started. Dealer checked it out and said there was a loose ground.
I took vehicle home all fine for about 30 miles running around town. Park in drive way on 10 degree slop and came back in the morning turned key and nothing happened same as before. Tried several starts within an hour after--nothing. Tow truck arrived again and this time driver tried starting the car--and it started!! Not consistent. Took vehicle to dealer and all the bad codes are back again (cleared on the first repair) and they are stumped because the vehicle starts and they cannot duplicate the problem. Any suggestions...............
#61 of 99 Re: 2006 DTS will not start [usabravo]
Sep 10, 2009 (7:07 am)
I had the exact same issue several times on my 06 DTS. Here is what I did that seemed to have solved the problem. Disconnect cable from battery to ground. Clean paint off floor around ground connection. Cut heat shrink away from negative and both positive cables at battery, other end of positive cable at module under rear seat, and positive cable at engine module (passenger side under hood). Soldered the crimped connection at each of these cable ends and taped the heat shrink back on (this requires a pretty stout soldering iron because the cables are rather large). Clean all connections with contact cleaner. Reinstall all the positive cables and reinstall ground cable at floor with a star washer under the cable. After doing all these things I never had the problem again.
#62 of 99 Re: 2006 DTS will not start [conked]
Sep 11, 2009 (11:18 am)
Dealer claims this is not the problem and that General Motors tech. is now saying it is somehow tied into the Onstar module. They are going to disconnect the module and want me to drive the vehicle, and if it corrects the problem they will replace the Onstar module. If not it is back to the drawing board. The problem is, as you know, if the vehicle does not start it must be towed each and every time--a jump does absolutely nothing as the battery is in great shape!
#63 of 99 Re: 2006 DTS will not start [usabravo]
Sep 11, 2009 (11:45 am)
I suppose the dealer sometimes knows what might cause a problem because they are exposed to more vehicles than just the one that you (or I) drive. My dealer re-programmed the remote key entry system and did something with the OnStar module attempting to find my problem, but these "fixes" didn't solve the problem. I would think that if a module was malfunctioning it would drain the battery, but that was never the case--like you, the battery would magically come back to life at full charge. At one time I thought perhaps the battery had a cracked intercell connector. I'm still not sure this wasn't part of the problem. The other symptom I had that you might check: my battery charging voltage, as indicated on the Driver Info Center under the speedo, would constantly vary. Sometimes it would charge at as much as 15.9 volts, other times only 12.3 and it was never constant...always moving around up and down. After the ground cable fix, it was steady as a rock at 13.8, just like every other car I've ever owned. A friend of mine who works at a local Buick dealership said they've had some similar problems with Lucernes.
Sep 12, 2009 (12:53 pm)
Thank you for your many emails re: problems with the caddy DTS. After six trips to the most unhelpful dealer (Coleman Cadillac, Bethesda, MD) where they blamed it on Onstar and finally on my Mother, she went to a lawyer. He sent a letter to GM and their customer dis-service person contacted my mother via phone and email and basically said it was her fault. No wonder they went bankrupt!
Through the lawyer, Mom found an excellent independent mechanic, Gili's Automotive, Rockville, MD. Gil did a complete diagnostic workup, including checking out the Onstar program. He said there were "several" computer updates from the manufacturer that had not been downloaded by the dealer. There were also some problems with the electrical system not being grounded correctly. Needless to say, Gili's fixed the problem - she has not had any problems since. She also takes the car to Gili's for regular maintenance as the cadillac dealer is totally unreliable.
#65 of 99 2003 DTS Roadlights not working
Oct 12, 2009 (2:47 pm)
I noticed recently that the lights inset in the front bumper do not come on when the headlights are turned on. Is there something you have to do to turn them on or is it an electrical failure? Thanks in dvance if anyone can help.
#66 of 99 Electrical problem solved Cad. 2006 DTS
Oct 19, 2009 (12:04 pm)
Previously posted messages no crank/no start. Dealership and GM believed the problem to be a module. I kept telling them it sounds like a grounding issue. Eventually, the electrical would die completely while driving and then 10 seconds later electrical would come back on. No speedometer, no power windows, no power locks, no gas guage reading, etc. Display would flash all kinds of crazy messages.
Apprently they listened and looked harder and found under the steering wheel lower dash a wire had its insulation rubbed through and was grounding. Apparently the wires are not routed correctly causing rubbing. Apparently Cadillac DTS 2006 has had prior problems with this (they found out from GM after mine was disagnosed) however there is no TSB at this point. Apparently there should be at this point.
They fixed the problem and now I am happy. I was losing my mind with the intermittent problem. Good luck with your problem.
#67 of 99 REMOTE STARTER DOSN'T WORK
Dec 20, 2009 (2:51 pm)
2006 DTS REMOTE STARTER DOSN'T WORK ANYMORE HAD ELECTRICAL PROBLEMS IN THE PAST 2 YRS ANY ONE HAVE THIS PROBLEM.
#68 of 99 blower wont work
Jun 14, 2010 (2:40 pm)
I've been haviing this problem since last summer with my 2002 DTS the blower for the heat and air condition comes on when it wants some times not at all. It has to be electrical cause I could slam the door and it would come on full blast that no longer works can any one help?
#69 of 99 Re: 2006 DTS Battery Drain [rprossil]
Jul 24, 2010 (4:28 pm)
I have a 2006 DTS that when it sits for a week the battery went dead. It went to the dealer 4 times and they said they checked everything out and said it was the radio memory that was draining the battery. So they put a switch under the dash to cut the radio off when parked. This did not work and you also lose all your preprogramed stations.The real reason is that the ON STAR system is draining the battery as it communicates with the car all the time. When you open the door it thinks you are going somewhere and runs a check on the whole system. The dealer WILL NOT disable the ON STAR no matter what you say. If you leave your DTS at the airport while you are on a 2 week trip to Europe you will have a dead battery when you return. If you use the car every day you will be OK, but if it sits the only recourse you have is to put a battery kill switch on the car. You will lose your radio stations but your battery will be OK. This is not a easy task as the battery is under the back seat and you don't want to keep lifting the seat out to turn on the switch. You need to run two cables from the battery to under the hood where you will mount the switch. It cost me about $200 to have this done but it sure was worth it. I like the car but it is going BY-BY when I can afford to dump it and buy a non-ON STAR car. I have always had Lincoln Towncars that sat for months that always started right up. So give up on the dealers as they will jack you around forever and never solve your problem except tell you to drive it more.