Service bulletins for the 2020 Buick Encore
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.
654 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 20NA122 | 2020-08-10. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:SUPPORT DEVICE/STRUT. This informational bulletin provides Information on Proper Liftgate Adjustment. |
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| 20NA121 | 2020-08-10. Service bulletin. STRUCTURE. This technical bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant. |
| 20NA120 | 2020-08-10. Service bulletin. POWER TRAIN. This informational bulletin explains how to check if the pulley and/or drive chain has any damage caused by low fluid or a code set that causes the transmission to default maxing out pressure. |
| A202299960 01 | 2020-07-20. Service bulletin. POWER TRAIN. Service Update - The gear shift lever may have a detent feel between Park and Reverse caused by the fastening bolt that is not fully seated and contacting the shifter housing. Dealers are to inspect the detent feel of the transmission range selector lever and replace the select cable if necessary. |
| A202304840 | 2020-07-20. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. SUB - Certain 2020-2021 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that could have been set by this condition, and pass or fail based on results. |
| A202302140 01 | 2020-07-20. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. Service Update - On certain vehicles, the engine oil pump may be stuck due to foreign material, and diagnostic trouble codes (DTC) P0521, P06DE, P06DD could be set. Dealers are to perform the engine oil pump screening test and if necessary, replace the oil pump. |
| A202301230 | 2020-06-29. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUB - Certain 2021 model year Chevrolet Trailblazer, and 2020-2021 model year Buick Encore GX vehicles, equipped with a continuously variable ratio (CVT) transmission, may experience reduced launch performance during a quick exit from a stop/start event. DTC?s P0746 and P0776 may also set illuminating a Check Engine Light. The main pump in the CVT has a priming delay under certain conditions. Dealers will reprogram the transmission control module (TCM) with updated software. |
| PIE0567 | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to SD Code messages displayed on the Radio Screen and/or Instrument Cluster - Navigation System Malfunction. |
| 070849020Q | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the IPC odometer programming method quick reference guide. |
| 060089029T | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 060089029S | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 030089006R | 2020-06-22. Service bulletin. EQUIPMENT. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores. |
| 19NA269 | 2020-06-22. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. This Technical bulletin provides a service procedure for dealers/technicians on installation of Radio Software Version U148 Over-the-Air Update. |
| 16NA405 | 2020-06-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This technical bulletin provides a procedure to install a PCV heater or a charge air cooler to correct the turbo charger system from freezing causing cold weather performance issues. |
| 16NA383 | 2020-06-22. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| PIC6416A | 2020-06-15. Service bulletin. STRUCTURE. This Preliminary information communicates to the dealer that if the service AWD (All-Wheel Drive) or AWD (All-Wheel Drive) Off messages are on and there is a history DTC of C15C9 SYM02 set then no repairs are to be made at this time, a software issue was found and Engineering is working on a permanent solution. If the DTC is setting current then published diagnosis needs to be followed. |
| PIP5598B | 2020-06-15. Service bulletin. ENGINE. This Preliminary information communicates the possibility of a crank no start or extended crank condition due to exhaust cam reluctor being out of position. |
| PIP5675D | 2020-06-15. Service bulletin. AIR BAGS. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results. |
| PIT5737A | 2020-06-15. Service bulletin. EQUIPMENT. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support. |
| PIC6396A | 2020-06-15. Service bulletin. STRUCTURE. This Preliminary information communicates to dealer that upon a PDI they will find a towing eyelet in the right rear bin of the vehicle and where they need to stow it. |
| PIE0565 | 2020-06-01. Service bulletin. LANE DEPARTURE; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Lane Keep Assist/Adaptive Cruise Control being inoperative. |
| PI0281H | 2020-06-01. Service bulletin. STRUCTURE:BODY; EQUIPMENT ADAPTIVE/MOBILITY. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. |
| 060089029R | 2020-06-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 060089029Q | 2020-06-01. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles. |
| 000310003Z | 2020-06-01. Service bulletin. TIRES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.