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Service bulletins for the 2011 Buick Regal

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.

1527 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Sunroof are shown. Show all

Bulletins, newest first
PI0590A2024-05-06. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Headliner Assembly Loose/Sagging at Rear of Sunroof Opening.
PIE0279A2024-04-08. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Engineering Information.
PIE02792024-04-08. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Engineering Information.
PIC5260F2022-07-25. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
PIC5260E2022-05-16. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
PIE02792021-04-29. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY. Engineering Information – Sunroof or Sunshade Inoperative, DTC U151B Set Condition Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI. Some customers may comment that the sunroof or shade is inoperative when the sunroof switch is pressed. When checking the vehicle for DTCs, the BCM may report U151B current or in history. Cause GM Engineering is attempting to determine the root cause of the above condition. Engineering has a need to gather information on vehicles PRIOR to repair that may exhibit this condition. As a result, this information will be used to "root cause" the customer's concern and develop/validate a field fix.
PIC5260D2021-04-19. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
PIC5260C2019-06-03. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
PIC5260B2018-08-20. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
060089026N2018-06-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE:BODY:DOOR; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); VISIBILITY:WINDSHIELD; ELECTRONIC STABILITY CONTROL (ESC). This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated.
16-NA-0332017-08-31. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This technical bulletin provides a procedure to replace the sunroof window motor for vehicles with the condition of sunroof or sunshade inoperatice and DTC U151B
PI14702017-08-15. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This preliminary informational bulletin provides repair information to correct a customer concern of sunroof or sunshade inoperative, and technician may find DTC U151B set.
PIC58702017-08-15. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles with radio speakers have poor audio quality, buzz, pop, static type noise or no audio. Technician should inspect the trunk mounted radio amplifier for any signs of moisture. Technician will need to Replace the amplifier if water is present and replace any terminals that have corrosion. Also water test the trunk, sunroof, back glass and roof areas. Technician will need to fix any water leaks and clean out all drain tubes.
PIC-5260-A2016-08-11. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS.
PI0590A2016-06-13. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.