Service bulletins for the 2018 GMC Sierra
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.
1723 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 030729004L | 2019-05-20. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT. This informational bulletin provides normal operating characteristics and diagnostic information on Manual transmissions. |
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| 030603004Y | 2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
| 19NA035 | 2019-05-20. Service bulletin. PARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR; PARKING BRAKE. This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving. |
| 18NA377 | 2019-05-20. Service bulletin. SEATS. This technical bulletin provides repair information to correct a customer concern of front seat lateral movement and/or click type noise while driving. |
| 17NA228 | 2019-05-20. Service bulletin. POWER TRAIN. This informational bulletin provides information on Click or Tick Noise on 3-4 Shift that it should be considered a normal characteristic. |
| 17NA166 | 2019-05-20. Service bulletin. ENGINE; EQUIPMENT. This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in Drive concern. |
| PIE0405A | 2019-05-13. Service bulletin. POWER TRAIN. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. |
| 17NA302 | 2019-05-13. Service bulletin. FUEL SYSTEM, GASOLINE. This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap area. |
| 17NA297 | 2019-05-13. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for programming the low speed LAN module due to the mirrors memory position reverse tilt position is inoperative. |
| 17NA269 | 2019-05-13. Service bulletin. BACK OVER PREVENTION; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This Technical bulletin provides information on new software to correct the rear camera display being too bright. |
| 17NA100 | 2019-05-13. Service bulletin. EQUIPMENT. This informational bulletin explains to the technician how to validate software calibrations have been tampered with by means of using aftermarket mods. |
| 16NA377 | 2019-05-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This informational bulletin provides information on a Service Emission System Message and/or a Malfunction Indicator Lamp illuminated. This usually occurs after recently filling the DEF tank with the ignition in the on position due to some DEF fill equipment uses pumps that create a high level of temporary aeration of the DEF fluid being dispensed in the tank. |
| 16NA376 | 2019-05-13. Service bulletin. ENGINE. This informational bulletin provides information on higher than expected oil consumption. |
| 16NA372 | 2019-05-13. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This informational bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these conditions. |
| 16NA244 | 2019-05-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system. |
| 150603002G | 2019-05-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin provides information on approved warranty part numbers for original equipment batteries |
| 120851002G | 2019-05-13. Service bulletin. EQUIPMENT. This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures. |
| 100605002E | 2019-05-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared Message Displayed on DIC, DTC P2463 May Be Set. |
| 100089005G | 2019-05-13. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. |
| 070601016D | 2019-05-13. Service bulletin. ENGINE. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement. |
| 040601029I | 2019-05-13. Service bulletin. EQUIPMENT. This informational bulletin explains the importance of maintaining the vehicle. |
| 030604017L | 2019-05-13. Service bulletin. FUEL SYSTEM, DIESEL. This Informational Bulletin provides information on availability of Diesel Fuel additives. |
| 030603004V | 2019-05-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
| 000601012H | 2019-05-13. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. |
| N18218893-01 | 2019-05-13. Service bulletin. POWER TRAIN. N182188930-01 - Special Coverage (Added Customer Reimbursement Labor Codes). Some vehicles, equipped with a Duramax Diesel engine, the transmission cooler lines may be rubbing on the front frame/bumper mount bracket. This condition could cause the cooler lines to leak. Transmission fluid may be seen on the ground under the front bumper. Some drivers may have difficulty selecting gears or experience transmission slip. This special coverage covers the condition described above for a period of 6 years or 72,000 miles (116,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. Dealers are to replace the transmission cooler lines. The repairs will be made at no charge to the customer. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.