Service bulletins for the 2023 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.
1426 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 23-NA-069 | 2023-05-04. Service bulletin. EQUIPMENT. This informational bulletin provides information for dealers/technicians on T1xx IOR Radio Wireless CarPlay Settings. |
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| N222375791 | 2023-05-04. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module to restore the Park Assist feature. Note: some vehicles may also require reprogramming of the instrument cluster or the active safety control module. |
| 23-NA-045 | 2023-05-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Engine RPO L3B P0299 Service Calibration. |
| 22-NA-247 | 2023-05-04. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications. |
| N222385490-01 | 2023-05-04. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the DC/AC inverter which operates the power outlets (110/220V) is not functional on certain 2023 model year vehicles listed above, built beginning September 23, 2022. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to install the accessory AC and DC power control module, install fuse, and reprogram the body control module (BCM). |
| 16-NA-019 | 2023-05-04. Service bulletin. POWER TRAIN. This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. |
| PIE0737C | 2023-05-04. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for further information from technicians in regards to the Check Engine Lamp Illuminated on the Driver Information Center (DIC). |
| PI0281J | 2023-05-04. Service bulletin. POWER TRAIN; STEERING; STRUCTURE; SUSPENSION; ENGINE AND ENGINE COOLING. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. |
| 23-NA-064 | 2023-05-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships. |
| 23-NA-063 | 2023-05-03. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to clear out some crystals that may have formed in the DPF at freezing temperatures and how to clean out said debris. |
| 20-NA-198 | 2023-05-03. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit. |
| 20-NA-132 | 2023-05-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements. |
| 19-NA-237 | 2023-05-03. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING. This service bulletin explains how to identify possible DEF system contamination. |
| N222384930 | 2023-04-25. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program - certain vehicles may have a “Service Trailer Brake” message set when a trailer with electric brakes is connected and the driver attempts to use the manual apply slider on switch or depress the brake pedal while towing. Dealers are to replace the Trailer Brake Control Switch. |
| 11-00-89-005V | 2023-04-22. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only). |
| 10-08-110-001J | 2023-04-22. Service bulletin. EQUIPMENT. This service bulletin provides information on proper use of floor mats. |
| 08-07-30-035G | 2023-04-22. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| N232397530 | 2023-04-21. Service bulletin. VISIBILITY; STRUCTURE; LANE DEPARTURE. Service Update. On certain vehicles, the side blind zone alert (SBZA) modules may have been installed on the wrong side of the rear bumper. Dealers are to ensure the modules are in the correct location. |
| PIT5977B | 2023-04-17. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to dealers that there is a known issue with a loss of audio and the concern is being investigated by GM Engineering. |
| PIP5876A | 2023-04-17. Service bulletin. EQUIPMENT; STRUCTURE. This Preliminary information communicates that the E66 ECM has now ended. |
| PIP5912 | 2023-04-17. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to technicians engineering is working to determine the root cause and not to attempt repairs unless the concern can be duplicated. |
| PIT5883J | 2023-04-17. Service bulletin. EQUIPMENT. This Preliminary information communicates vehicles being built without certain options due to a parts shortage. |
| PIT5971A | 2023-04-17. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates to the technician that GM is aware of this concern with audio loss and the OnStar LED being red. GM is working on a solution to correct this customers concern. |
| PIT5750C | 2023-04-17. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates an issue with the battery goes dead and provides diagnostics tips on inspecting the LIN bus. |
| PIT5387M | 2023-04-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.