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Cadillac CTS - Quality that lasts?



  • I want to replace the woofer on my 05 CTS. It sounds very distorted when the radio volume is turned up. I would also like to add navigation as well. I have found a factory nav unit and hopefully it is compatible and will work with my 05 CTS.
  • "So if I understand your post, you were checking the oil every week or every time you filled it with gas, and your car went from full of oil to being 2-3 quarts low in a hundred miles or so? "

    No. I would say about every 2500-3000 miles the car will be 2-3 quarts low. I am still having problems using oil and coolant and of course the dealer doesn't think anything is wrong.

    Now I am thinking that i have a gasket problem (intake or heads). As soon as I can get something else to drive for awhile we are going to tear into it.

    The rear end on the car hums pretty loud at high way speeds also. I thought it may have been the tires, but I got new tires and still humming. To be honest I think the car has a mind of it's own. Some days it doesn't want to idle right. I have to turn it off and back on and it idles (this is very rare). Also about tow weeks ago I back out of the drive way, put the car in drive and the car would not go anywhere. The screen displayed "stability system engaged" and I could only go about 4mph with the whole car vibrating. It seems like the traction/stability system was stuck on. I turn the car off and back on and it was fine since then. I give it another month and something else will decide to act up.
  • sls002sls002 Posts: 2,788
    While a quart every 1000 miles is a bit high, it may or may not be a problem. However, you should not be using coolant. The dealer needs to see the coolant loss, so you should not replace low coolant, but take it to the dealer and tell them its low. They should check for leaks.
  • cher11cher11 Posts: 11
    I have a CTS 2005 with 44,000 miles and I just had to have the rear end replaced. Has anyone had a problem like this and should I get an extended warranty for the next 3 years or should I get rid of this car now?? I can't believe this has happened with such low mileage. Any advice or info would be much appreciated. thanks Cher11
  • paopao Posts: 1,867
    the early model CTS along with some other GM models that share the same differential have shared this isnt unique to the CTS..this same diff is used in the Pontiac Solstice..our 06 solstice just had the diff replaced for gear whining.....and metal shavings in the 35K..there is also a TSB out for a pinion seal replacement on certain model year CTSs as well

    an extended warranty on a 4 MY car with 44K would be expensive..if you could find an aftermarket plan...most are not worth it.....getting rid of the car for another is a financial this point have you had any other problems with the car...did you pay for the diff or was it under warranty???
  • cher11cher11 Posts: 11
    Thanks for the info. It is under warranty so it did not cost me anything. It has a 5yr/50,000 warranty. I don't drive more than 10,000 miles a year now since retiring. I have not had any other problems with the car.
    Thanks for helping my anxiety. Cher
  • ConsumerReports, TrueDelta, and Edmunds all seem to demonstrated average to below average reliability on the CTS.

    What is your experience with 08 and 09 CTS? (good or bad). I know it's not very scientific - but informative non the less.
  • paopao Posts: 1,867
    too early to tell....09 CTS none DI RWD picked up in late Sept 08...11K on it now...not one brake issue that the dealer fixed immediately
  • bp242_txbp242_tx Posts: 3
    Did or do you ever experience the vibration or shutter at idle I have read about the DI engine?

  • 87silver87silver Posts: 9
    I just got rid of my 2005 CTS. I bought it new and put 48000 miles on it. Never had a stitch of trouble with it. The only thing that I replaced was the tires. The Goodyear Eagles wore like pencil erasers.

    Except for the fact that we are killing our own economy, would buying an Asian car do any better besides keeping up with our yuppie neighbors?
  • paopao Posts: 1,867
    I dont have the DI engine...I opted not to get it for the first year release......the non DI engine which is standard was the optional engine upgrade last year......quite happy with my choice.......have all option on mine less AWD and the DI engine option.

    Had mine since late Sept 08......12,500 miles so far......and not one problem worth reporting....a minor issue the dealer quickly corrected.....
  • at 43200 miles the timing chain need to be replaced. Due to the GM problems with $ in the fall I didnt get the repair completed by the dealer f0r 13 weeks!

    At 44000 miles the water pump failed.

    At 46500 miles the car need further timing chain repair: cam sprockets I was told, (and had the car back in 4 days). Yippee

    I have not found any other reference to timing chain problems and both dealers making repairs (2nd time remote from our home) claimed this is a unique problem. As warantee is dropping soon Im going to ditch the car.
  • temj12temj12 Posts: 450
    My '05, which I traded for a 2009 in January, had the water pump replaced at 49,500 miles. That is quick failure for a water pump.
  • I drive an '09 CTS DI RWD Manual Transmission. Car was purchased at the end of March 2009. Some four months later, the car's been in the shop 5 times:
    - twice to fix a misfiring ignition coil, which they had to replace the second time it was in the shop
    - three times for a clutch pedal sensor. car won't start if the sensor malfunctions. in the shop now as i write this post. will they fix it once and for this time around? i don't have confidence.

    Only 4,000 miles on it. And just as many headaches and hassles. I know things happen like this, I only wish it wasn't the car I drove!
  • iwant12iwant12 Posts: 269
    I have been considering a preowned 08 CTS when the lease is up on my 4Runner. I really like the CTS but don't want to be on a first name basis with the Caddy service advisor (too many problems listed here on this forum have scared me). I did that with a 98 T/A. I loved the car but it was in the shop frequently. I'm on my second 4Runner since then and have never had one single problem with either one. Buyer beware, I guess.
  • paopao Posts: 1,867
    coming up on a year old...17K on it....only one minor problem with squealing rear working to fix it.....otherwise its been flawless.....fully loaded other than the DI engine.....
  • Bought my 09 CTS on July 10, 2008. It has 14,000 trouble free miles on it.
  • oharamjoharamj Posts: 2
    I've been meaning to post my experience with an "04 CTS 3.6l- so here goes

    Bough 2.5yrs ago as a certified used car from Cad. dealer in Milwaukee. I'm an engineer (exactly the demographic Cadillac are trying to market to - 35yrs old). It was a leap of faith buying a Cadillac but I thought I'd try it - the CTS looks great- mine is black with a regular base leather interior.

    Here what has been done to it: (out of necessity- it recently hit 100k- so warranty expired)

    2 Rear ends (complete diff [non-permissible content removed]'y)- Note last one was put in in Oct last year (when car was serviced recently dealer told me the oil from [non-permissible content removed]'y was black on one side of diff- so new fluid etc. put in). The car got stuck in grass at side of my driveway during bad snow in Wi in Dec - 2 min.s of trying to get it out- has almost killed the diff. clutch (nothing heroic- gently tried to one wheel onto tarmac) - I understand CTS's have an appetite for diff.s - either a design or Mexico AMM manufacturing problem- but this is a big ticket item.

    1 Half shaft - drive to axle from diff.
    1 new seal- wheel hub (radial shaft seal)
    New engine chains & sprockets - complete timing chain replacement

    Water pump gasket-#1 Coolant leak #1 (Dealer told me it was the gasket - took it to another dealer closer to home because 100k warranty was looming

    Water Pump gasket#2 - Coolant leak#2 (I've worked in auto. selaing industry for large German company- know that seals/probabilities don't go bad twice in a relatively short space of time) - took it to a Chevy dealer closer to home- turns out the gasket was fine- the cylinder head was leaking

    1 cylinder head job gasket and water pump- see above

    AC - two trips to delaer to fix bad gaskets
    3 struts in front end ( one set only lasted a year)
    2 radios (stopped working)
    Leak in trunk
    Leak in floor well - driver's side - 2 trips to resolve
    Broken Vent switch, loose trim, peeling paint m ball joints, starting disabled because of sftware issue , bushings.....................etc

    this is just what I can remember- there is no room in glove box for the encylopedia of invoices generated by dealer to fix problems- and I have no idea what was done to it by prior owner. (note each line item represents trip to dealer.

    At 103k - the transmission / radiator closed loop cooling failer - send trans. fluid to red. and coolant to trans. - cost $4300 to fix. When car was picked up at dealer a few weeks ago- I'm told it developed a brake assist problem right there in the servicing bay and needs a new sensor- and the thermostat is lazy- all happened at dealer.

    I had the car serviced at a Cadillac dealer religuously ( being an engineer I can appreciate maintenance) and also paid the $500 shoe and rotor regrind without complaint when the economy was in the toliet and the dealer was obviously balancing the books.

    GM- with a serious push put 25% toward parts in the transmission fiasco- and more or less stated you are on your own- which is a major disappointment to say the least. I believe the official line was - " there are too many miles on the car and it's an 2004" - all of which is true- but the car was 3k over it's warranty (with what is a design fault), with a meticulously maintained car..............

    GM have a lot of catching up to do quality wise.... I've driven the new CTS - and on the surface like it's earlier sibling- everything looks in order- but I can't take the risk again with this brand.

    I don't believe in Lemons - systems failure happen because of just that- but all these items I've dealt with are isolated systems- which means exceptionally poor quality.- plain and simple I'm afraid.
  • paopao Posts: 1,867
    09 CTS with all options except AWD and the DI engine...purchased Sept08 with over 25K on it so far and not one riding and driving car I have owned....

    noting your Diff problems...the earlier MY CTS were notorious for the rear Diff failures....and they were a german manfacture was my understanding...(Getrag)...these were the same difs put in the early MY 06-07 Pontiac Solstices which suffered the same fate...leaks and clutch packs destroying appeared it was a design issue...........Solstice was replaced twice as well with the last one a year ago solving the grinding sounds and leak issues...

    the new CTS IMHO is far above the earlier MY ones......I would highly recommend it
  • pf562pf562 Posts: 4
    Have had my 08 cts in the shop on and off for 5 weeks and have ownd it for 6 months ant it still has a list of problems . GM is now saying that some of the problems are common for this car. Rough idle, can barly get 19 mpg on flat hwy. chugging at slow rolling speeds (Have It in writing). I thought this was a cadillac GMs flagship luxury division Do not buy a 3.6 FI 2008 . I have only heard good things about the DI cars. My FI car has only 34000 miles and runs like it has 300000 miles
  • paopao Posts: 1,867
    is GM telling you these things are normal or is the dealership doing it....if so...would change dealers immediately.....and look for a regional GM tech rep to review your issues...none of the issues you mention should be considered normal....
  • mneddmnedd Posts: 2
    this really irritates me..."some of the problems are common"...does this mean that they will never be able to solve them, so don't worry about it?....i own a 06 3.6 V6 CTS and i have the same would think over two years there would be some improvement.
  • gmcustsvcgmcustsvc Posts: 4,251
    Hello Mnedd,
    What problems are you currently experiencing? Thank you,
    Mariah GM Customer Service
  • pf562pf562 Posts: 4
    edited August 2010
    my reciept says service manager and GM rep inspected timing componets. Replaced them. then says remainer of surge at Idle is normal per GM. Its not the service manager he admits its not rite. GM had the car sit for three week while they made up their mind. I'll drop the car off anywhere to let a GM rep drive for a couple days. I dont think they understand what it is doing,
  • stuwillystuwilly Posts: 1
    My 2005 CTS with 62000 miles needs a new engine,IT somehow ran itself out of oil without a single warning,its a shame that a car would let you know if your wheels are spinning (traction control)or sliding (stabiltrac)or you trunk or door is open but no lights for low oil level.I have no Idea where the oil went I called GM and got a case #71-1049338571 and gave permission for an engine diagnosis the service dept said that it would cost @$1200 for the engine breakdown to find out what caused the problem.They took the oil pan off and saw a broken connecting rod,two holes in the block and a piston slammed into the cylinder wall the GM district person came and the decision was made that it was due to lack of lubrication.New engine replacement cost is $6200 of which GM said they would pay %20 or give me $2000 toward the payoff of my vehicle or towards the purchase of a new car,to which both I declined upon researching on the internet I found that I am not alone with this problem with the 3.6l engine the NHTSA has a bulletin item#10036464 that speaks about a PCV Baffle concern,GM has a TSB#01-06-01011e so they know about the problem but are willfully refusing to acknowledge a defective engine ,The GM 3.6l vvt should not drink oil at a tune of 1 quart every 750 miles this is my 4th caddy and my last.I will do everything that I can to make this problem known GM ought to be ashamed about the way they treat their loyal customers.
  • cher11cher11 Posts: 11
    I have a 2005 CTS. They tell me it's normal for them to use more oil than other cars. RIGHT??? I have to check it all of the time. I can usually tell it is getting low the way it shifts itself. I have to add a quart about every 4-6 weeks it seems like. I have Onstar which I get updates each month to tell me the oil % is getting down to a low amount. The car also tells me when the % of oil is low but you have to check that out with the radio dials. I always check there and if the oil % is at 10-15% I get an oil change. I agree with you that I would NEVER by another CTS. I am disappointed in the longevity of this car. Iike the looks and size but the price is not worth it. Good luck with car....
  • gmcustsvcgmcustsvc Posts: 4,251
    Thank you for taking the time to share your experience and concern. Have you had an oil consumption test performed at your GM dealer? Can you please email me directly with your VIN, current mileage, and involved dealer to I look forward to hearing from you.
    GM Customer Service
  • jpfjpf Posts: 496
    Hello Christina;

    Please advise the higher ups at GM Customer Service that there are many satisfied GM customers like myself (I own an Uplander and a Grand Prix) that still love to drive a push-rod overhead valve engine (i.e. 3.1, 3.5, 3.8, or 3.9 liter engines) and would never buy GM's newer hi-tech overhead cam engines (i.e. 3.6 liter Cadillac engine) because they are so unreliable.
  • gmcustsvcgmcustsvc Posts: 4,251
    Thank you for your feedback. I have passed this along. For the 2008 model year the 3.6L engine was changed. Here is a link to specs about the 3.6L engine that has been used since:
    I hope this information helps.
    GM Customer Service
  • mgruca05mgruca05 Posts: 2
    My 2005 CTS 3.6 has been consuming oil recently as well. I checked it yesterday and it was good. I carpool to work and it was my day to drive. I made it there just fine as well as back to where we meet. After I dropped everyone off, the engine started making this terrible knocking sound (like a jackhammer.) I got it home ok. I checked the oil and it was low, so I added some more. I got up this morning and started the car. The noise was still there, but after some time idling seemed to go away. I head to my carpool meeting spot and on the highway, the knocking got extremely loud. I took my exit and at the light the car kept trying to die. I made it to my parking spot and the SECOND I got into the spot, the car died and would not start.

    Now I have to have the car towed to a mechanic to be told some terrible news, based on what I've been reading about these cars. The car has 57k miles on it and the oil has been changed using Mobil 1 5w-30 synthetic since I bought it with 35k miles on it. I changed the oil at 3,000 miles. Over the last month, I've been adding oil to it every 1 to 2 weeks.

    I am closing on a new house this week and this was the last thing I needed to happen right now. As bad as it sounds, I can't wait to buy a reliable import :mad:
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