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Service bulletin 18NA035

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 id10154539
Published by NHTSA2019-03-18
Manufacturer's number18NA035
Manufacturer's date2019-02-25
NHTSA componentPOWER TRAIN

NHTSA's summary

This informational bulletin explains a normal characteristic of a trans shift when cold temps are present.

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

Transmission and driveline

Vehicles listed
BUICK ENCORE2018, 2019
CHEVROLET CRUZE2018, 2019
CHEVROLET EQUINOX2018, 2019
CHEVROLET MALIBU2018, 2019
GMC TERRAIN2018, 2019

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

Recalls for the same vehicles and component
20205202020-10-29. Powertrain
20V6680002020-10-29. POWER TRAIN:AUTOMATIC TRANSMISSION
17V5160002017-08-22. POWER TRAIN:DRIVELINE:DRIVESHAFT

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
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.
19-NA-2002025-04-10. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
PIP5975A2025-03-02. Service bulletin. This Preliminary information communicates information on what dealer technicians should due if they encounter a broken chain on a CVT transmission
PIP6032A2025-02-03. Service bulletin. This Preliminary Information communication advises the technician on possible sources of transmission fluid leaks from the transmission oil filter or cooler line seals .
09-06-04-026Z2025-01-23. Service bulletin. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
08-07-30-035I2024-12-19. Service bulletin. This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
21-NA-1812024-12-18. Service bulletin. This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.
PIP60322024-12-16. Service bulletin. This Preliminary Information communication advises the technician on possible sources of transmission fluid leaks from the transmission oil filter or cooler line seals .
23-NA-0212024-12-04. Service bulletin. This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.
04-06-01-029K2024-12-04. Service bulletin. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.