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Service bulletin 16-NA-220

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10100801
Published by NHTSA2017-05-25
Manufacturer's number16-NA-220
Manufacturer's date2016-07-01
NHTSA componentSTRUCTURE:BODY

NHTSA's summary

THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO FINESSE, BUFF, POLISH CIRCLES THAT MAY BE PRESENT ON VEHICLES THAT EXHIBIT THE CONDITION OF WHITE CLOUDY CIRCLES ON NEW VEHICLES.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Body and frame

Vehicles listed
CADILLAC CT62016
CADILLAC CT6 PLUG-IN HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
05-08-51-001L2025-03-08. Service bulletin. This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
22-NA-2442025-02-12. Service bulletin. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
10-08-110-001L2025-02-11. Service bulletin. This service bulletin provides information on proper use of floor mats.
21-NA-0432024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
22-NA-2442024-11-13. Service bulletin. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
23-NA-2192024-11-05. Service bulletin. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
22-NA-2442024-05-30. Warranty extension. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
PI0281K2024-02-14. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
99-08-51-001F2023-07-14. Service bulletin. This service bulletin provides information on Paintless Dent Repair Process.
PI0281J2023-05-04. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.