WenmarOpen by Wenmar Pro

Service bulletins for the 2019 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PIP5568C2018-12-17. Service bulletin. ENGINE. This Preliminary information communicates there is an investigation into cause and correction for this group of DTC's setting together. (P0011, P0014, P0021, P0024). Revised to include the possibility of setting in pairs and some drivability concerns.
PIP5486F2018-11-13. Service bulletin. ENGINE. This Preliminary information communicates possible concerns and a diagnostic strategy to locate and repair various noises within the engine as well as some misfire causes.
PIP55972018-11-13. Service bulletin. ENGINE; EQUIPMENT:OTHER:LABELS. This Preliminary information communicates to the technician where to find the engine identification tag and what information on that tag to use during programming of someengine control modules.
PIP5486D2018-09-17. Service bulletin. ENGINE. This Preliminary information communicates possible concerns and a diagnostic strategy to locate and repair various noises within the engine as well as some misfire causes.
PIP5095F2018-09-17. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.
182182018-08-20. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; ENGINE; POWER TRAIN. 18218 - Service Update. All vehicles, equipped with AWD (RPO F46), may have a condition in which the front portion of the propeller shaft slips out of the Power Transfer Unit (PTU) and drags on the roadway. The driver may hear a dragging noise from beneath the vehicle, but there will be no driver information center/cluster warning messages. Dealers are to re-seat the propeller shaft to the PTU and rear differential carrier assembly.

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