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Service bulletins for the 2025 Chevrolet Tahoe

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
661.302026-05-26. Over-the-air update. UNKNOWN OR OTHER. • Fixes to help protect battery life. • Improvements to provide more accurate speed limit detection on the driver’s display. • Improvements to the availability of driver assistance features and fewer notifications or warnings. • Fixes to help ensure driver assistance features remain functional when the windshield freezes.
661.302026-05-26. Over-the-air update. UNKNOWN OR OTHER. • Improvements to the availability of driver assistance features.
661.222026-05-26. Over-the-air update. UNKNOWN OR OTHER. • Fixes for active cabin ventilation. • Improvements to the performance of vehicle software updates.
PIC6540J2026-05-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
PIT6393L2026-05-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIT6388A2026-05-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates information on Reprogramming the BCM and how to place the key fob during Immobilizer learn due to the immobilizer coil being relocated.
PIC6540H2026-05-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
PIT6376A2026-05-19. Service bulletin. UNKNOWN OR OTHER. On the 2025 Police Tahoe with the Aux Battery option letting dealership know it is left disconnected at plant and should be connected during PDI.
PIC6423A2026-05-19. Service bulletin. UNKNOWN OR OTHER. Pi created to provide GM dealers with information on gathering information for projection issue
PIC6551B2026-05-19. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
PIC6629E2026-05-13. Service bulletin. UNKNOWN OR OTHER. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
PIT6360A2026-05-11. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates information to inform the dealer that Engineering releaed calibrations to correct the Remote Fob Pairing option missing from the Radio Settings Menu.
PIT6247B2026-05-11. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.
PIC6540G2026-05-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
PIC6540G2026-05-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
PIT65142026-05-08. Service bulletin. UNKNOWN OR OTHER. This PI communicates that the u013A code setting requires no repairs on Export Vehicles.
PIT6393K2026-05-08. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIT65112026-05-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with a replace or low FOB battery message
661.212026-05-01. Over-the-air update. UNKNOWN OR OTHER. • Improvements to the performance of vehicle software updates. • Fixes to help prevent loss of functionality for connectivity features, including maps and Wi-Fi. • Fixes to help prevent erroneous emergency calls from vehicle. • Fixes for deleting digital keys. • Fixes to help ensure proper functionality for mobile app features. • Improvements to the performance of Super Cruise.
PIC6629D2026-04-30. Service bulletin. UNKNOWN OR OTHER. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
PIT65082026-04-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician the diagnostic direction needed when the customer complains of SuperCruise Subscription Required Message Displayed on Instrument Cluster.
PIT6339A2026-04-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the field on how to diagnosis Supercruise Unavailable and Driver Attention Assist Unavailable and Drowsy Driver Feature Disabled message.
PIT6288G2026-04-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with a service door latch system messages. On Cadillac and Chevrolet models dealership are to cycle the child door latch on and off to correct the issue. On GMC models reprogram the BCM and VCU then cyc
PIT6017B2026-04-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates how to change a regular vehicle to fleet mode that was not built with the option.
PIT6452D2026-04-29. Service bulletin. UNKNOWN OR OTHER. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times

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