2009 Cadillac DTS Support Question
2009 Cadillac DTS Support Question
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Question posted by cleonard on July 23rd, 2012
What Is Causing Whistling Noise?
I have a 2009 dts Cadillac that I bought new. Sometimes, when driving faster than 65 miles per hour an annoying whistling noise occurs. I have spent hours on the phone with GM trying to resolve the problem. It is not a consistent problem--months may pass without a problem then it starts again.
Current Answers
Answer #1: Posted by rnrcoachnme on August 15th, 2012 1:11 AM
rnrcoachnme
Member since:
August 15th, 2012 Points: 100
Member since:
August 15th, 2012 Points: 100
I have the same problem with my 2006 DTS. It occurs when the outside temps are 70 degrees or higher. The higher the temp and the faster the speed, the louder the noise as well as the frequency. It sounds like a high-pitched whistle and can drown out the radio. If speed is kept below 69, the sound usually disappears. I was told by one dealer the cowlings under the hood below the wipers were warped, causing a vibration pattern. I had them replaced, but the noise persists. I noticed recently that when I followed another vehicle (the bigger, the better) at about 2 car lengths (not too safe), the noise dissipated or disappeared. Longer distances between vehicles did not work. So it appears to be an air flow problem somewhere, but I don't think it's associated with the air condiioning as it occurs even with the air on internal recirculation.
Related Manual Pages
Owner's Manual - Page 1
2009 Cadillac DTS Owner Manual
Seats and Restraint System ...1-1 Head Restraints ...1-2 Front Seats ...1-3 Rear ...40 Warning Lights, Gages, and Indicators ...3-50
M
Driver Information Center (DIC) ...3-67 Audio System(s) ...3-95 Driving Your Vehicle ...4-1 Your Driving, the Road, and the Vehicle ...4-2 Towing ...4-26 Service and Appearance Care ...5-1 Service ...5-3 Fuel ...5-5 Checking Things...
Owner's Manual - Page 2
...in Canada, substitute the name "General Motors of Canada Limited" for Cadillac Motor Car Division wherever it appears in this manual in the vehicle for... 07130 Detroit, MI 48207 1-800-551-4123 www.helminc.com
GENERAL MOTORS, GM, the GM Emblem, CADILLAC, the CADILLAC Crest & Wreath, and the name DTS are registered trademarks of General Motors Corporation. This manual includes the latest information...
Owner's Manual - Page 67
...possibly other breathing trouble. Additional windshield breakage may also occur from the right front passenger airbag.
• ... the airbag, windshields are designed to in flate. A new system will not be dust in flates, then get fresh... so. This dust could cause breathing problems for the airbag system. If you experience breathing problems following an airbag deployment, you...
Owner's Manual - Page 98
...frequency subject to the following two conditions: 1.
This device may not cause interference. 2. From outside of Industry Canada. Reach in the vehicle....cause harmful interference. 2. PASS-Key III+ uses a radio frequency transponder in the key that may cause undesired operation of the vehicle, keeping the door open the door. PASS-Key® III+ Electronic Immobilizer
The PASS...
Owner's Manual - Page 149
...frequency subject to the following two conditions: 1. This device may not cause interference. 2. Turn Signal On Chime
If the turn it off. This device must accept ... including interference that may cause undesired operation of the device. See DIC Warnings and Messages on the instrument panel cluster will display TURN SIGNAL ON after driving about a mile to remind you to ...
Owner's Manual - Page 190
... while driving, or when one of the gages shows there may be a problem, check the section that explains what to do repairs can signal that may be or is started to cause an ...compartment wall on briefly when the engine is a problem with the vehicle. Waiting to indicate a problem with one of the vehicle's functions. Insert the new air filter by pushing until you hear a ...
Owner's Manual - Page 299
...could be covered by the vehicle's warranty.
• Then, during the first 1,000 miles
(1600 km) the new vehicle is used . Shift the transmission
to do not make starts at all the required trailering ... total weight on how the rig is towed, do not drive over 50 mph (80 km/h) and do with weight:
• There are all important.
Do not drive faster than 1,000 lbs (454 kg).
Owner's Manual - Page 309
... be affected. If the octane is an important part of the proper maintenance of this occurs, use regular unleaded gasoline rated at 87 octane or higher, but emission control system performance...rating of 91 or higher. This can cause wind noise and can also use a gasoline rated at 87 octane or higher and you might
5-5 Otherwise, you drive.
We recommend against the use of gasoline ...
Owner's Manual - Page 313
... smoke while pumping fuel. • Do not use a cellular phone while pumping fuel.
{ CAUTION:
If a fire starts ...avoid injury to you need a new fuel cap, be sure to light and may cause the malfunction indicator lamp to get... the wrong type, it may not fit properly. Contact should be badly burned and the vehicle damaged if this occurs...
Owner's Manual - Page 322
...64257;lter cover.
{ CAUTION:
Operating the engine with dirt, a new filter is not there and the engine backfires, you are driving. Always have the air cleaner/filter in the air cleaner ...fires. If the filter remains caked with the air cleaner/filter off can cause a damaging engine fire. Remove the engine air cleaner/filter and any loose debris ...
Owner's Manual - Page 323
...the intervals listed in Additional Required Services on the dipstick. Too little fluid could cause the transmission to check the automatic transmission fluid level is when the engine oil ...if you could come out and fall on page 6-11.
Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 90°F (32°C). Notice: Too much...
Owner's Manual - Page 327
... add coolant when it could require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs first. Notice: Using coolant other engine parts, can be very hot. Do not run the engine, it is low. If there is a problem with DEX-COOL® engine coolant. The following explains the...
Owner's Manual - Page 337
...hydraulic system.
{ CAUTION:
If too much fluid when new brake linings are installed, the fluid level goes back up. When new linings are installed. Have the brake hydraulic system fixed,...can spill on page 3-73.
• A fluid leak in the brake hydraulic system can also
cause a low fluid level. Adding fluid does not correct a leak. You or others could ...
Owner's Manual - Page 338
... cause a crash. What to Add
Use only new DOT 3 brake fluid from entering the reservoir. Always clean the brake fluid reservoir cap and the area around the cap before removing it off immediately. This could lead to be replaced. Always use the proper brake fluid. Be careful not to drive...
Owner's Manual - Page 340
... provide the protection needed , it is time for one that the vent hose is not necessary to cause cancer and reproductive harm. See Jump Starting on page 5-98. Access to see your dealer/retailer for a new battery, see this damage and the safety belts might not be vented in a crash. When it...
Owner's Manual - Page 344
... enough water. If you do not need more light. Battery fluid contains acid that can cause battery gas to explode. People have been hurt doing this, and some have been blinded. But ....
5-40 Use a flashlight if you need to add water to the battery installed in your new vehicle. You will not need to access the battery for that purpose.
{ CAUTION:
Using a match near...
Owner's Manual - Page 352
... your vehicle Warranty booklet for high speed driving.
{ CAUTION:
• Poorly maintained and improperly used
tires are cold. CAUTION: (Continued)
5-48 Tires
Your new vehicle comes with high-quality tires made ...Overinflated tires are more likely to obtain service, see your tires can cause accidents. CAUTION:
(Continued)
• Underinflated tires pose the same danger...
Owner's Manual - Page 367
...matched to the tire/wheel positions in flation pressure indicated on .
5-63 See Buying New Tires on page 5-68.
• Operating electronic devices or being near facilities
using a TPMS... diagnostic tool. See your dealer/retailer for service. See your vehicle could cause the TPMS sensors to the TPMS could prevent the TPMS from functioning properly. If the TPMS...
Owner's Manual - Page 372
...cations that you to lose control of different sizes, brands, or types may also cause damage to drive your vehicle. GM recommends replacing tires in sets of your vehicle with the same TPC Spec rating....the original tires. See Tire Inspection and Rotation on page 5-65 for information on page 5-49 for use on your vehicle, when it was new, were designed to use the correct size, brand, and ...
Owner's Manual - Page 373
.... A tire and/or wheel could develop cracks after many miles of driving. If you must replace your vehicle's tires with those that... the vehicle, the wheel rim flanges could fail suddenly, causing a crash. See Loading the Vehicle on page 4-19, for... by a GM certified technician. See Tire Pressure Monitor System on the Tire and Loading Information Label. See Buying New Tires on ...
