WenmarOpen by Wenmar Pro

Service bulletin 16-NA-109

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11014577
Published by NHTSA2025-02-28
Manufacturer's number16-NA-109
Manufacturer's date2025-02-18
NHTSA componentSTEERING

NHTSA's summary

This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering

Vehicles listed
BRIGHTDROP EV6002022
BRIGHTDROP ZEVO 4002024 (the catalog's model; the bulletin names a series or trim of it)
BRIGHTDROP ZEVO 6002023, 2024 (the catalog's model; the bulletin names a series or trim of it)
BUICK CASCADA2016, 2017, 2018, 2019
BUICK ENCLAVE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
BUICK ENCORE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK ENCORE2023 to 2025
BUICK ENCORE GX2020, 2021, 2022, 2023, 2024, 2025
BUICK ENVISION2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
BUICK ENVISTA2024, 2025
BUICK LACROSSE2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK LACROSSE2020
BUICK LESABRE2013
BUICK REGAL2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
BUICK REGAL TOURX2018
BUICK REGAL TOURX2020
BUICK VERANO2013, 2014, 2015, 2016, 2017
CADILLAC ATS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC ATS-V2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CT42020, 2021, 2022, 2023, 2024, 2025
CADILLAC CT52020, 2021, 2022, 2023, 2024, 2025
CADILLAC CT62013 to 2015
CADILLAC CT62016, 2017, 2018, 2019, 2020
CADILLAC CT62021
CADILLAC CTS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CTS-V2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS-V2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ELR2014, 2015, 2016, 2017
CADILLAC ESCALADE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CADILLAC ESCALADE ESV2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CADILLAC ESCALADE EXT2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE HYBRID2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE IQ2025
CADILLAC LYRIQ2023, 2024, 2025
CADILLAC OPTIQ2025
CADILLAC SRX2013, 2014, 2015, 2016
CADILLAC XT42018
CADILLAC XT42019, 2020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT52013 to 2016
CADILLAC XT52017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT62020, 2021, 2022, 2023, 2024, 2025
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC XTS2020
CHEVROLET 35002014 to 2015
CHEVROLET 35002016
CHEVROLET 35002017 to 2019
CHEVROLET 35002020
CHEVROLET 35002021
CHEVROLET 35002022
CHEVROLET 3500HD2024
CHEVROLET 45002016
CHEVROLET 45002017 to 2019
CHEVROLET 45002020
CHEVROLET 45002022
CHEVROLET 4500HD2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET 4500XD2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET 5500HD2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET 5500XD2018, 2019, 2020, 2021, 2022
CHEVROLET 65002019
CHEVROLET 6500HD2019 to 2023
CHEVROLET AVALANCHE2013
CHEVROLET AVALANCHE2014
CHEVROLET AVALANCHE 15002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BLAZER2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET BLAZER EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BOLT EUV2022, 2023
CHEVROLET BOLT EV2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET BOLT EV2024
CHEVROLET BRIGHTDROP 4002025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BRIGHTDROP 6002025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET C35002018
CHEVROLET CAMARO2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
CHEVROLET CAPRICE2013 to 2018
CHEVROLET CAPRICE POLICE PURSUIT2013 to 2017
CHEVROLET CAPTIVA2013 to 2018
CHEVROLET CAPTIVA SPORT2013, 2014
CHEVROLET CHEVEROLET SS2014 to 2017
CHEVROLET CITY EXPRESS2015, 2016
CHEVROLET CITY EXPRESS2018
CHEVROLET COLORADO2013 to 2014
CHEVROLET COLORADO2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET CORVETTE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET CORVETTE E-RAY2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CRUZE2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET EQUINOX2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET EQUINOX EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET EXPRESS2023, 2024, 2025
CHEVROLET EXPRESS 15002013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002013, 2014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS CUTAWAY VAN2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET G45002018
CHEVROLET IMPALA2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET LOW CAB FORWARD 35002016 to 2019
CHEVROLET LOW CAB FORWARD 45002016 to 2017
CHEVROLET LOW CAB FORWARD 55002016 to 2017
CHEVROLET LOW CAB FORWARD 65002018
CHEVROLET LOW CAB FORWARD N SERIES2025
CHEVROLET LUMINA2014
CHEVROLET MALIBU2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET MALIBU ECO2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU HYBRID2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 45002019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 55002019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 55002023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 65002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 65002021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 65002025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO LT2018 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET SPARK2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET SPARK EV2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
CHEVROLET SUBURBAN 15002021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET TAHOE HYBRID2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE POLICE PURSUIT2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER2013 to 2015
CHEVROLET TRAILBLAZER2017 to 2020
CHEVROLET TRAILBLAZER2021, 2022, 2023, 2024, 2025
CHEVROLET TRAVERSE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET TRAX2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET VOLT2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET duplicate SILVERADO 55002019
GMC 3500HD2024
GMC ACADIA2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC CANYON2013
GMC CANYON2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC ENVOY2013
GMC G35002017 to 2018
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025
GMC SAVANA2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC SAVANA 15002013, 2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 25002013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 25002023 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002023 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002025 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA CUTAWAY VAN2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON DENALI2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON HYBRID2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON XL 15002023 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL 25002013 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20263072026-06-23. Steering
26V3990002026-06-23. STEERING
20251442025-03-20. Steering
25V1750002025-03-20. STEERING:ELECTRIC POWER ASSIST SYSTEM
23V5490002023-08-03. STEERING
20213802021-06-17. Steering
21V4550002021-06-17. STEERING:STEERING CONTROL MODULE
20202912020-06-25. Steering
20190562019-02-08. Steering
19V0860002019-02-07. STEERING:ELECTRIC POWER ASSIST SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
N2525280202025-11-18. Service campaign. Certain vehicles may have a condition in which the Upper Intermediate Steering Shaft Bolt is below torque specification. Dealers will torque the Upper Intermediate Steering Shaft Bolt to specification.
23-NA-2012025-10-21. Service bulletin. This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated.
25-NA-1162025-09-06. Service bulletin. This service bulletin provides information and the condition correction on the "Service Steering Column Lock" message and/or those who are unable to move the steering wheel after starting the vehicle.
N2525122602025-07-17. Service campaign. Certain vehicles listed above may have a condition in which the fastener for the intermediate steering shaft to steering gear assembly may have suspect torque results. Dealers will replace and torque fastener.
25-NA-0962025-06-25. Service bulletin. This technical service bulletin provides information on the correction of the Steering Column Lock with the "Service Steering Column Lock" message or the inability to move the steering wheel after starting the vehicle.
PI0281L2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
24-NA-1762025-06-11. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Turn Signal Over Cancelling.
21-NA-1662025-06-06. Service bulletin. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
13-02-32-001H2025-05-06. Service bulletin. This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.
23-NA-0742025-05-02. Service bulletin. This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.