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Service bulletins for the 2021 GMC Savana

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.

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

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Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
25-NA-1182025-09-10. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
070601016G2022-06-13. Service bulletin. BACK OVER PREVENTION. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
22NA0122022-05-31. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.
17NA2222022-05-31. Service bulletin. POWER TRAIN; BACK OVER PREVENTION. This technical bulletin provides a procedure to replace the turbocharger for vehicles with a condition of Turbocharger Whine Noise due to the blades on the turbo being bent.
PIT5703B2022-02-14. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview Camera. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 151. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
PIT5039E2021-12-13. Service bulletin. EQUIPMENT; STRUCTURE:BODY; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING. This Preliminary Information communication provides information to the technician about vehicles that the customer or up-fitter may have removed the rear bumper, install a different rear bumper, or add a different box/flat bed/cube box/hitch, etc. to the rear of the truck, which affects the rear park assist operation. Technician can disable the rear park assist for this concern.
PIT5698B2021-09-13. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
PIP5787A2021-04-19. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES. This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Sensor Performance), P0108 (Manifold Absolute Pressure Sensor Circuit High) and/or P00C7 (Intake Air Pressure Measurement System Sensor and Multiple Sensors Correlation) codes active or stored in history. This condition may be caused by a faulty Manifold Absolute Pressure (MAP) sensor.

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