Service bulletins for the 2021 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.
1477 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| PIP5748D | 2021-01-25. Service bulletin. BACK OVER PREVENTION. This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes. |
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| PIT5779D | 2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern. |
| PIT5779C | 2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern. |
| PIC6423 | 2021-01-25. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. This Preliminary Information communication requests information from the technician about vehicles that may have Bluetooth or phone projection issues. Dealer should request as much information from the customer on the concern as possible and fill in the questionaire. |
| PIT5775A | 2021-01-25. Service bulletin. STEERING; SEAT BELTS. This Preliminary information communicates an issue with a service column lock message with DTC U3000 sym71,72 or 96 and engineering released updated software to correct this concern. |
| PIT5759J | 2021-01-25. Service bulletin. AIR BAGS; SEATS:FRONT ASSEMBLY:POWER ADJUST. This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting caused by high resistance at the F106DA Driver's front seat inboard air bag connector. Dealers are to replace the F106DA Driver's front seat inboard air bag connector pigtail. |
| PIT5789A | 2021-01-25. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern. |
| PIT5777A | 2021-01-25. Service bulletin. EXTERIOR LIGHTING; AIR BAGS. This Preliminary information communicates an issue with a Check Reverse Lamp message on the DIC, but the reverse light operate. Engineering has released updated cals to correct this concern. |
| PIT5776B | 2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates an issue with the power liftgate inoperative and engineering working on the issue. |
| PIT5779B | 2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern. |
| PIT5787A | 2021-01-25. Service bulletin. POWER TRAIN. This Preliminary information communicates an issue with the 110 volt power outlets turning off during an Auto Stop event, which is normal operation. |
| N202317390 | 2020-12-21. Service bulletin. EQUIPMENT; SERVICE BRAKES; ELECTRICAL SYSTEM. Customer Satisfaction Program (Programming Suspended/Resumed) - Certain vehicles may have a condition in which the brake system control module (BSCM) may set and latch an internal fault in the module?s on-board diagnostics (OBD) buffer. When the fault is present, no malfunction indicator lamp (MIL) is illuminated and there is no driver information center (DIC) message. If an over the air (OTA) software update is pushed to an OBD module and the customer accepts it through the Infotainment system, the update will fail because the presence of the active fault will block the OTA update. The customer may notice that the OTA update has failed with an error message on the DIC. This fault is not visible through dealer tools. Dealers are to reprogram the BSCM. |
| N202319660 | 2020-12-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin. |
| N202313960 | 2020-12-21. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS:DAYTIME RUNNING LIGHTS:BULBS. Customer Satisfaction Program - Certain 2021 model year Chevrolet Suburban and Tahoe vehicles, may have a condition in which the daytime running lamps may shift to a bluer shade of white in its lit appearance. This will remain in effect until the headlamp cools. Replace left and right headlamp LED driver module assemblies. |
| N202315510 | 2020-12-21. Service bulletin. EQUIPMENT; STRUCTURE. Customer Satisfaction program. Certain vehicles may have a condition in which the trailering label has zeroed out information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating (TWR) and Max Tongue Weight may show a zero instead of the proper amounts. Install the updated label. Because this label can easily be installed by the customer, and to reduce their inconvenience, labels and installation instructions will be mailed to customers of record. |
| PIE0601 | 2020-12-21. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp being illuminated. |
| PIE0599A | 2020-12-21. Service bulletin. AIR BAGS. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the airbag lamp illuminated on the driver?s information center (DIC). |
| PIE0599 | 2020-12-21. Service bulletin. AIR BAGS. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the airbag lamp illuminated on the driver?s information center (DIC). |
| PIE0597 | 2020-12-21. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the power liftgate inoperative. |
| PIE0592A | 2020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards one or more camera views showing, intermittent behavior and/or totally inoperative. |
| PI0754D | 2020-12-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; VISIBILITY:GLASS, SIDE/REAR. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic. |
| 990851001E | 2020-12-21. Service bulletin. EQUIPMENT; STRUCTURE. Thins informational bulletin provides information on Paint-less Dent Repair Process. |
| 060089031F | 2020-12-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 030604017O | 2020-12-21. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This Informational Bulletin provides information on availability of Diesel Fuel additives. |
| 000310002L | 2020-12-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; WHEELS. This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.