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Service bulletin 21-NA-045

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 id10220309
Published by NHTSA2022-09-19
Manufacturer's number21-NA-045
Manufacturer's date2022-09-02
NHTSA componentSERVICE BRAKES, HYDRAULIC

NHTSA's summary

This service bulletin informs dealers that a new Power Brake Booster Vacuum Cap will need to be replaced when installing the revised Power Brake Booster Vacuum Pipe to correct DTCs being set due to misrouting of brake booster vacuum pipe.

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

Vehicles listed
CHEVROLET IMPALA2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET MALIBU2014, 2015, 2016, 2017, 2018, 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
20184612018-08-30. Brakes
18V5760002018-08-30. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
20161992016-05-05. Brakes
15V2020002015-04-06. PARKING BRAKE
15V0850002015-02-11. PARKING BRAKE
20150592015-02-10. Brakes
20143802014-09-09. Brakes
14V5410002014-09-09. PARKING BRAKE
20141712014-05-14. Brakes
14V2470002014-05-14. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

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
25-NA-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
21-NA-0432024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
21-NA-2682024-07-16. Service bulletin. This service bulletin provides diagnostic/repair information to correct customer concerns of a Crank No Start or Extended Crank, Malfunction Indicator Lamp (MIL) Illuminated or Possible Increased Brake Pedal Effort.
22-NA-2442024-05-30. Warranty extension. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
PIE0300A2024-04-15. Service bulletin. Engineering Information
PIE03002024-04-15. Service bulletin. Engineering Information
PIP5596A2024-04-15. Service bulletin. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
142012024-01-16. Service bulletin. Electronic Brake Control Module
14128A2023-12-18. Service bulletin. Incorrect Front Brake Rotor