Here is the only one I could find...
Here'* some GM inside info for you 2000 - 01 Bonneville owners out there.
Hot Tip #5:
Subject: Intermittent Squawk or Groan Noise from Steering System >>> 09/13/02
Vehicles Affected: 2000-01 Bonnevilles
Summary: Replace Steering Gear & High Pressure Hose Assembly.
This is a situation where the owner may comment that the steering system emits a load squawk noise at times when the steering is turned at low speeds. The likely cause for this issue is an internal steering gear resonance. To correct this condition, replace the components outlined in this hot tip. Note that these parts are for vehicles with specific options. Care must be taken to get the right parts for the application. This information only applies to cars with Magna-steer "E" that was installed in some models in the 2000 model year.
The steering gear for the 2001 Bonneville SSEi is now available and can be used to correct a squawk concern on a 2000 or a 2001 Pontiac SSEi. Use steering gear P/N 26099978. Steering gear will be substituted with an updated gear.
These parts went into production at the following VIN break points: H Body gear 1G2HZ541224100674