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Service bulletins for the 2021 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.

666 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
01-00-89-010Q2022-10-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
00-06-01-012L2022-10-08. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
21-NA-0682022-10-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
16-NA-2222022-10-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
11-00-89-005U2022-10-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
00-06-01-026P2022-09-30. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
22-NA-1812022-09-19. Service bulletin. POWER TRAIN. This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.
05-00-89-029E2022-09-19. Service bulletin. EQUIPMENT. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
21-NA-0612022-09-08. Service bulletin. EQUIPMENT. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).
22-NA-1742022-09-07. Service bulletin. EQUIPMENT. This service bulletin provides information on Terms and Conditions/Privacy Statement App (TCPS App) Guide for infotainment systems in a default factory demo mode.
21-NA-1422022-09-07. Service bulletin. SERVICE BRAKES. This technical bulletin provides repair information to correct a customer concern of hearing front brake grind/groan noise after sitting overnight.
18-NA-3062022-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
11-00-89-005T2022-09-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
20-NA-0652022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
19-NA-0442022-08-29. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
PIE0696A2022-08-19. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) ends the need for further information from the field in regards to water intrusion at the front door harness connector X500 and/or X600 that results in the door locks to be inoperative.
21-NA-0232022-08-16. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to install dampeners on the purge line to eliminate the customers concern.
20-NA-1362022-08-16. Service bulletin. POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
PIT59312022-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates that a vehicle may be encountered with a clunk or rattle from the front of the vehicle. The dealer technician is instructed to remove the cradle brace and see if the noise is gone. If the noise is gone with the brace removed the tech is instructed to reinstall the brace and torque it to specification.
PIT5569B2022-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
PIT4261H2022-08-15. Service bulletin. EQUIPMENT; TIRES. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
22-NA-1072022-08-03. Service bulletin. ELECTRICAL SYSTEM:IGNITION; POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a Service AWD Message in DIC at Ignition On with DTC C056D Set.
20-NA-1362022-08-03. Service bulletin. POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
18-NA-3062022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
04-00-89-015X2022-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.