Service bulletins for the 2020 Chevrolet Traverse
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.
782 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 20NA169 | 2020-10-26. Service bulletin. STRUCTURE:FRAME AND MEMBERS; EQUIPMENT. This technical bulletin provides a procedure to eliminate a creak, pop and/or snap type noise heard coming from passenger side B-Pillar area. |
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| 20NA136 | 2020-10-26. Service bulletin. POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only). |
| 18NA306 | 2020-10-26. Service bulletin. EQUIPMENT; STRUCTURE:BODY. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). |
| 18NA115 | 2020-10-26. Service bulletin. ENGINE AND ENGINE COOLING. This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set. |
| 16NA019 | 2020-10-26. Service bulletin. POWER TRAIN. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. |
| PIT5720A | 2020-10-19. Service bulletin. VISIBILITY. This Preliminary information communicates that a customer may come to the dealer with a complaint of a hum, drone or pulsing type noise at times. On investigation the dealer may discover that this concern only occurs when the customer is driving with one or both rear windows down or one front window down. The dealer is instructed to advise the customer that if this is occurring with rear windows down to open a front window or the sunroof (if equipped) or if it is occurring with a front window down to open the other front window or the sunroof (if equipped) to alleviate this concern. |
| PIT5754 | 2020-10-19. Service bulletin. EQUIPMENT. This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern. |
| PIT5737B | 2020-10-19. Service bulletin. EQUIPMENT. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support. |
| PIE0581 | 2020-10-05. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This engineering informational bulletin is requesting pictures from technicians in regards to water leak issue at Sunroof Window - Rear that drives a warrantable item type of repair. |
| 990089019U | 2020-10-05. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. |
| 20NA159 | 2020-09-28. Service bulletin. TIRES. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only). |
| 20NA136 | 2020-09-28. Service bulletin. POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only). |
| 18NA099 | 2020-09-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 17NA271 | 2020-09-28. Service bulletin. SERVICE BRAKES, HYDRAULIC; WHEELS. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking. |
| PIT5411U | 2020-09-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance. |
| PIE0570A | 2020-09-08. Service bulletin. POWER TRAIN; EQUIPMENT. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards torque converter clutch (TCC) shudder occurring during light throttle acceleration 2-6 gears. |
| PIE0567A | 2020-09-08. Service bulletin. EQUIPMENT. This engineering information (EI) ends the needs for information from the field regarding SD Code messages displayed on the Radio Screen and/or Instrument Cluster - Navigation System Malfunction. |
| 150089002B | 2020-09-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. This bulletin provides information to dealers regarding transportation damage repair claim submission requirements. |
| 20NA148 | 2020-08-31. Service bulletin. EQUIPMENT; STRUCTURE. This technical bulletin provides repair information to correct a customer concern of hearing a plastic to metal squeak/creak noise coming from the driver or passenger side B-Pillar area. |
| 19NA115 | 2020-08-31. Service bulletin. SERVICE BRAKES. This technical bulletin provides repair information to correct a customer concern of a rear brake squeal noise. |
| 17NA271 | 2020-08-31. Service bulletin. EQUIPMENT; WHEELS. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking. |
| 16NA338 | 2020-08-31. Service bulletin. ENGINE; 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 for Canadian Dealers only. |
| PIP5180C | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior to cold start and watch needle for signs of a sticking valve. |
| PIP5608D | 2020-08-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern. |
| PIT5737B | 2020-08-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.