Service bulletins for the 2018 Chevrolet Silverado
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.
1747 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Torque converter are shown. Show all
| 20NA142 | 2021-03-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving. |
|---|---|
| 19NA153 | 2021-02-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM for metal. |
| 20NA142 | 2020-11-30. Service bulletin. EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving. |
| PIP4681E | 2018-08-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Preliminary Information communication provides information to the technician about vehicles that have a random bump, chuggle, or fishbite sensation when crowding the throttle slightly with the Torque Converter Clutch on while cruising at 35-60 miles per hour. Technician should follow all published Service Information diagnostics if the concern is repaired compare to a like vehicle with the same options. |
| PIE0405C | 2018-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. |
| 17426 (Bulletin | 2018-05-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. 17426 - Service Update. Certain vehicles, equipped with the manual shift transfer case (RPO NQG), may have a condition in which the transfer case shift linkage rod bolt torque is less than specified. Over time this bolt could loosen enough to allow the transfer case shift indicator to be inaccurate; or the bolt could fall off causing the transfer case to remain in its previous position and the shifter to be non-functional. Tighten the transfer case shift linkage rod bolt to the specified torque. |
| PIE0405B | 2018-04-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.