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Sedans Cadillac CTS/CTS-V 2008 Cadillac CTS
2757 messages, Last post on Oct 09, 2009 at 8:13 PM
You are in the Cadillac CTS/CTS-V Forum. Your Hosts are pat & karens
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Replying to: jrcee (Feb 16, 2009 12:03 pm) This bulletin is being revised to update model years and add insulator washers (only for vehicles built without washers). Please discard Corporate Bulletin Number 08-07-30-044 (Section 04 - Driveline/Axle). Condition Some customers may comment on a drone, boom, moan or vibration during light acceleration which phases in and out in intensity. The condition may be most noticeable at about 80 km/h (50 mph), or 1000 - 1300 engine RPM, and occurs over a speed range of 5 to 8 km/h (3 to 5 mph). Cause This condition may be caused by the rear axle assembly responding to engine firing frequencies passed through the driveline when the torque converter clutch (TCC) is engaged. Correction For All Vehicles -- Calibration Update This condition can be verified by driving the vehicle to duplicate the concern and using the Tech 2® to turn off the TCC. If the noise stops when the TCC is turned off, the calibration detailed below should help to eliminate the noise or vibration. Important: • This calibration may result in decreased fuel economy up to approximately one mpg/kpg. Because of this, the software should not be used in a vehicle without this concern. • There are two calibration part numbers that are "selectable" for this controller. Read the description to determine the correct calibration for this condition. • DO NOT replace rear drive axle or propshaft for this concern. A revised calibration has been developed to correct this condition. Technicians are to reprogram the transmission control module (TCM) using SPS with the latest software available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI. As always make sure your Tech 2® is updated with the latest software version. For Vehicles Built Prior to VIN Breakpoint 90159377 - Install Insulator Washers After Reprogramming 1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in SI. 2. Place a transmission jack stand under the rear differential assembly. 3. Remove the two front differential mounting bolts 4. Install the rubber insulators (2), GM P/N 20827776, between the rear drive axle and the body 5. Install the rear differential mounting bolt. Tighten Tighten the rear differential mounting bolt (1) to 220 N•m(162 lb ft). 6. Remove the transmission jack stand. 7. Remove the support and lower the vehicle. Parts Information Part Number Description Qty 20827776 INSULATOR ASM - DIFF CARR 2 Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time K9532* Transmission Control Module Transmission Reprogramming with SPS 0.4 hr Add Install Rubber Insulators in Rear Differential 0.3 hr *This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION © 2009 General Motors Corporation. All rights reserved.
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Replying to: pao (Feb 16, 2009 4:19 pm) |
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I habe an 08 cts major electrical problems been at the dealer now for 23 days, got back car shut down while driving, again im told it will be a while we have alot of issues with the cts, anyone else having issues   
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Replying to: jenton (Mar 14, 2009 7:29 am) |
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Replying to: jenton (Mar 14, 2009 7:29 am) |
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I finally had to let it go. Good bye CTS4 DI. I could not take another day of warranty work for a car that has so much promise. When the service report told me that I had to have XM radio hooked up and OnStar hooked up to make my voice recognition work, when they were hooked up, I had to put my hands up. I found out after 3 trips to service, the factory never hooked up the wiring for the voice rec. Then after 4 trips for my sunroof, and having to go back for another, I could not go there any longer. Our DTS has had only one problem and after 60k, our HUMMER was faultless (until it was totaled but replaced with the same). Say hello to GLK 4-matic. Quiet, better seating, same price, no blind spots, dead pedal in the correct spot, no scraping of the front air dam, better sound system, more storage, better bluetooth, altimeter, cornering lamps, better mileage (although on 91). The nav is not as intuitive, but the Teleaid vs OnStar has more features, like the Save and Send. The GLK is not as pretty to look at, although cute. I feel there is better out there right now for the same amount of money as the CTS. Your decision. Also, I bought one of the first CTS4's out. I took a major depreciation hit, not just because of the 20k miles, but because GM's employee pricing, plus plus plus.....and filling up rental cars one after another because the service department could not get it right, well, gave me the excuse to finally go un-American. Right now, it's worth it. I hope Mercedes can get it right and keep it that way. And,,,,,,, no way will I ever go Japanese.... Happy Trails
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You need to post your story in the UAW topic...address it to rocky... 
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Replying to: psdesertrat (Mar 23, 2009 10:31 pm) my only turn off to MB is their required 10K or 12 month service interval which must be performed by an authorized MB dealer....and the associated high costs....a normal oil change was well over $100 in my area by a 'authorized" MB maintenance facility........ I know the argue that anyone can do an oil change as long as the use the right spec stuff.....but I dont give a dealer anything to complain about me not meeting OEM specs when I still have a warranty in effect.....just my opinion I certainly dont blame you for getting out of the CTS....first MY cars can also be a gamble....... |
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I have a 2008 Black CTS that is almost perfect. It is 9 months old but has one small irritant that drives me "around the bend." It has a slight vibration in the real package shelf when going over small bumps or expansions joints etc. while at speeds slower than 35 mph. Either the shelf itself is loose or there is something hitting the underside. I understand that there is a TSB that deals with this issue but I am unable locate anywhere on the web that lists the TSBs let alone show one what they actually say. I am told that the number is 09-08-44-003. Is there anyone out there that can tell me where to find this information or who can provide it for me? Your help will be sincerely appreciated. I am off the the dealer next week for their third attempt at this issue and want to be armed properly. Thanks again!
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Replying to: cafpaf (Mar 25, 2009 12:41 pm) I have been driving for 50 years, and I have never heard that term. To what are you referring? Many vehicle noises seem to come from a specific location when they are actually being transferred from a different location. For instance, my 2009 CTS seemed to have a light tapping in the left rear door at speeds lower than 35 mph. I found it myself. The battery cable was vibrating against some plastic in its enclosure. I put a small piece of foam weather stripping on the plastic where the cable was touching. Voila! Problem solved.
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