Service bulletins for the 2018 Buick Enclave
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.
1027 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Transmission and driveline are shown. Show all
| 080730026F | 2019-09-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped. |
|---|---|
| 17NA143 | 2019-09-23. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. This technical bulletin provides a procedure to replace the axle nuts and washers if a clicking noise is heard on turns from the front. |
| 16NA338 | 2019-07-29. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns. |
| 080730035D | 2019-07-01. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| N182200470 | 2019-06-24. Service bulletin. POWER TRAIN. N182200470 - Customer Satisfaction - Certain 2018 model year Buick Enclave and LaCrosse vehicles, and 2018 - 2019 model year GMC Terrain vehicles, may have a condition that occurs when the driver places the vehicle in neutral immediately following an auto start from an auto stop condition. The transmission can become stuck in a command that will cause damage to the transmission clutch plates. Reprogram Transmission Control Module with SPS. |
| 18NA329 | 2019-03-25. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to replace the 3-8 clutches and program the TCM to correct the customers concern. |
| 18NA054 | 2019-03-25. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to replace the transmission valve body separator plate for an upshift condition. |
| 17NA066 | 2019-03-25. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| 16NA338 | 2019-03-18. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns. |
| PIP5508B | 2018-08-06. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician that the Product Quality Center has ended the part restriction for the T87A Transmission Control Module. |
| 060089026N | 2018-06-04. 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. |
| 080730026E | 2018-06-04. Service bulletin. POWER TRAIN. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped. |
| 040730013D | 2018-06-04. Service bulletin. POWER TRAIN; ENGINE; EQUIPMENT. This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use. |
| 17-NA-066 | 2018-05-21. Service bulletin. POWER TRAIN. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| PIP5512 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates that the valve body assembly for any vehicle equipped with a 9T50/60 transmission assembly equipped with the ETRS will require engineering review for possible complete transmission assembly replacement if diagnoses leads to be a valve body or ETRSconcern. |
| 17-NA-066 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test. |
| 18NA054 | 2018-05-21. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to replace the transmission valve body separator plate for an upshift condition. |
| 18NA026 | 2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. This technical bulletin provides a procedure to install an oil cooler line fitting seal, including applying medium strength threadlocker (blue) to the retaining bolt to stop transmission fluid leaking from the transmission oil cooler line retaining bolt passage. |
| 080730035C | 2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 18NA105 | 2018-05-21. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to program the RDCCM to correct a drivetrain whine/moan an/or clunk when in AWD. |
| 18NA097 | 2018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This technical bulletin provides a procedure to reprogram the TCM to correct a condition of Vehicle Wont Shift Out of Park, Stuck in Gear or Tie Up Feeling on 1-2 Shift, Wont Shift Into Park or Reverse, PRNDL May Blink with Possible DTC P187D, P2731, or U0100. |
| 17NA379 | 2018-05-21. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure to replace the rear differential assembly if found to be the cause of the noises heard while in FWD. |
| 060089031E | 2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 17NA379 | 2018-05-21. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN. This technical bulletin provides a procedure to replace the rear differential assembly if found to be the cause of the noises heard while in FWD. |
| 18NA054 | 2018-05-21. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to replace the transmission valve body separator plate for an upshift condition. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.