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Discussion Starter · #1 ·
GM has announced a fix for the noise some hear on the rear end for 2010/2011 SRX. Seems the rear springs may need a rubber "ribbon seal" added on some models, to help cushion "squeaks, thuds" on rear end when going over bumps. Not a recall. I'm very leery of the "recalibration of self adjusting shocks". Stiffer ride?? Maybe just try the rubber seal first?? Mine is fine so far, @ 6,000 miles. See your Dealer.


Subject: Squeak, Squawk or Thump Noise from Rear of Vehicle (Install Butyl Ribbon Seal on Top Upper Spring Jounce Bumper) See below:

Models: 2010-2011 Cadillac SRX


This PI is being revised to add the 2011 model year. Please discard PI0105.


Some customers may comment that they hear a squeak, squawk or thump noise from the rear of the vehicle while going over speed bumps or large potholes.

Confirm that the noise is coming from the rear suspension.
Remove both of the rear spring jounce bumpers. Refer to Rear Spring, Insulator, and Jounce Bumper Replacement in SI.

Thoroughly clean the mating surfaces of the jounce bumper cup and the body. Clean and install butyl ribbon seal, 3M™ P/N 08611 (or equivalent), on the top upper spring jounce bumper.

• Apply butyl ribbon seal on the outer ring of the jounce bumper cup (1).

• Apply butyl ribbon seal in four places (2) along the inside vertical wall, near the upper radius.

Reinstall the spring and jounce bumpers, making sure that the spring is properly centered in the upper spring isolator (3-4 mm (0.12-0.16 in) gap all around the spring to isolator interface (1).
On 2010 model year vehicles only, if the vehicle has an FE3 suspension with electronic shocks and struts, reflash the suspension control module with the latest calibration.
• A revised calibration has been developed to address this concern. Update the suspension control module using the Service Programming System (SPS) with the latest software available on TIS2WEB. Refer to the Service Programming System (SPS) procedures in SI.

Parts Information
Part Number

3M™ P/N 08611
Butyl Ribbon Seal
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