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Service bulletins for the 2021 GMC Acadia

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Throttle and cruise control are shown. Show all

Bulletins, newest first
10-08-110-001L2025-02-11. Service bulletin. STRUCTURE:BODY; VEHICLE SPEED CONTROL. This service bulletin provides information on proper use of floor mats.
23-NA-0722023-06-05. Service bulletin. POWER TRAIN; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. This service bulletin provides a procedure to correct a customer concern of Shudders or Shakes at Low Speeds.
PIT58452021-09-13. Service bulletin. ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL; EQUIPMENT. This Preliminary information communicates information to diagnose adaptive cruse with DTC U0422 in the EBCM.
N2123339602021-06-14. Service bulletin. VISIBILITY; VEHICLE SPEED CONTROL. Customer Satisfaction Program. Certain vehicles were sold and delivered to customers without the originally invoiced accessory inside rearview mirror with garage door opener switches. Customers may either schedule an appointment to have the accessory content installed on their vehicle free of charge, or they will be refunded the amount of the LPO content not installed on their vehicles.
PIT5606J2021-02-16. Service bulletin. FUEL SYSTEM, GASOLINE; STEERING; POWER TRAIN; VISIBILITY; VEHICLE SPEED CONTROL. This Preliminary information communicates an Intermittent No Crank, No Start, or Reduced Power loss of data multiple U codes or Intermittent Power Door Locks inoperative, unwanted seat or mirror movement. Inspect harness for chaffed by the I-shaft at the base of the steering column. If chaffed, repair damaged wires and zip tie the harness away from the I-shaft. Also Inspect the HVAC drain hose is properly routed and not plugged.
PIT5606J2021-01-25. Service bulletin. VEHICLE SPEED CONTROL; VISIBILITY; FUEL SYSTEM, GASOLINE; POWER TRAIN; STEERING. This Preliminary information communicates an Intermittent No Crank, No Start, or Reduced Power loss of data multiple U codes or Intermittent Power Door Locks inoperative, unwanted seat or mirror movement. Inspect harness for chaffed by the I-shaft at the base of the steering column. If chaffed, repair damaged wires and zip tie the harness away from the I-shaft. Also Inspect the HVAC drain hose is properly routed and not plugged.

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