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Service bulletin 19NA035

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 id10160125
Published by NHTSA2019-05-20
Manufacturer's number19NA035
Manufacturer's date2019-04-08
NHTSA componentPARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR; PARKING BRAKE

NHTSA's summary

This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving.

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

Brakes, Parking brake

Vehicles listed
CADILLAC ATS2016, 2017, 2018, 2019
CADILLAC CT62016
CADILLAC CT6 PLUG-IN HYBRID2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS2016, 2017, 2018, 2019
CADILLAC ESCALADE2015, 2016, 2017
CADILLAC ESCALADE ESV2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2017
CHEVROLET CAMARO2016, 2017, 2018, 2019
CHEVROLET COLORADO2016, 2017, 2018, 2019
CHEVROLET CORVETTE2015, 2016, 2017, 2018, 2019
CHEVROLET EXPRESS2017, 2018, 2019
CHEVROLET SILVERADO2017
CHEVROLET SILVERADO 15002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 45002019 (the catalog's model; the bulletin names a series or trim of it)
GMC CANYON2016, 2017, 2018, 2019
GMC SAVANA2017, 2018, 2019
GMC SIERRA2017
GMC SIERRA 15002015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002015, 2016, 2017, 2018, 2019 (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
14V5680002014-09-17. PARKING BRAKE

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
146202023-12-18. Service bulletin. Park Brake Cable Not Connected
14620A2023-12-04. Service bulletin. Park Brake Cable Not Connected
183472022-05-31. Service bulletin. Service Update. On certain vehicles, the overhead console OnStar push-to-talk button is printed with the incorrect icon. Replace the overhead console OnStar switch.
PIT5662G2022-04-18. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E.
20-NA-2072022-03-16. Service bulletin. This service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set.
PIT5662F2021-09-13. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E.
19NA1362021-02-01. Service bulletin. This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
PIT5662D2020-02-10. Service bulletin. This Preliminary information communicates information to diagnose DTC C056D or C056E.
PIT5657B2019-11-12. Service bulletin. This Preliminary information communicates how to repair a loose shift cable bracket.
19NA1372019-08-26. Service bulletin. This technical bulletin provides a procedure to add PET tape to the brake cables if the cause of the customers concern.