Service bulletins for the 2023 Chevrolet Trailblazer
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.
484 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 21-NA-181 | 2024-12-18. Service bulletin. POWER TRAIN. This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation. |
|---|---|
| 19-NA-219 | 2024-12-17. Service bulletin. ENGINE. This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue. |
| PIP6033 | 2024-12-16. Service bulletin. POWER TRAIN. This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces. |
| PIP6032 | 2024-12-16. Service bulletin. POWER TRAIN. This Preliminary Information communication advises the technician on possible sources of transmission fluid leaks from the transmission oil filter or cooler line seals . |
| PIP6031 | 2024-12-16. Service bulletin. POWER TRAIN. This Preliminary information communicates to technicians that to seperate the case halves clean the mating surfaces and replace the gasket. |
| PIP6030 | 2024-12-16. Service bulletin. POWER TRAIN. This Preliminary information communicates the ability to disassemble inspect and replace park system components. |
| PIP6029 | 2024-12-16. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN. This Preliminary information communicates to Technicians how to repair a rattle noise coming from the shift cable assembly. |
| PIT5962B | 2024-12-12. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses. |
| 24-NA-072 | 2024-12-10. Service bulletin. SERVICE BRAKES. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 21-NA-043 | 2024-12-10. Service bulletin. STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
| PIC6587 | 2024-12-09. Service bulletin. UNKNOWN OR OTHER; LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING. This Preliminary information communicates Thus the active safety systems maybe inoperable and to perform a module reset to correct. |
| PIC6552D | 2024-12-09. Service bulletin. LANE DEPARTURE: ASSIST; UNKNOWN OR OTHER; LANE DEPARTURE: WARNING. This Preliminary information communicates how to recover the Image Processing Module. |
| PIT5551P | 2024-12-05. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| 23-NA-021 | 2024-12-04. Service bulletin. ENGINE; POWER TRAIN. This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle. |
| 04-06-01-029K | 2024-12-04. Service bulletin. POWER TRAIN; STEERING; ENGINE. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules. |
| 24-NA-072 | 2024-12-04. Service bulletin. SERVICE BRAKES. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 23-NA-086 | 2024-12-04. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage. |
| 21-NA-169 | 2024-12-03. Service bulletin. POWER TRAIN. This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves. |
| 24-NA-108 | 2024-11-21. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct radio software concerns. |
| 24-NA-072 | 2024-11-21. Service bulletin. SERVICE BRAKES. This technical bulletin provides a procedure a squeal noise heard from the front of the vehicle during light brake pedal application. |
| 24-NA-040 | 2024-11-16. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC. |
| 10-00-89-009F | 2024-11-14. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S). |
| 23-NA-154 | 2024-11-13. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
| 22-NA-244 | 2024-11-13. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. |
| 22-NA-053 | 2024-11-13. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.