TSB: CHEVROLET IMPALA, MALIBU (2014–2019)

Bulletin 21-NA-045 — September 2, 2022

Bulletin Details

Bulletin ID21-NA-045
ManufacturerCHEVROLET
ModelsIMPALA, MALIBU
Model Years2014–2019
Date IssuedSeptember 2, 2022
Date Added to NHTSAOctober 28, 2022
ComponentBRAKES (PWS)
Vehicles Affected36 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

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.

Affected Vehicles

MakeModelYearComponent
CHEVROLET IMPALA 2019 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2019 030000 BRAKES (PWS)
CHEVROLET IMPALA 2019 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET MALIBU 2019 030000 BRAKES (PWS)
CHEVROLET MALIBU 2019 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2019 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2018 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2018 030000 BRAKES (PWS)
CHEVROLET IMPALA 2018 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET MALIBU 2018 030000 BRAKES (PWS)
CHEVROLET MALIBU 2018 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2018 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2017 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2017 030000 BRAKES (PWS)
CHEVROLET IMPALA 2017 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2017 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET MALIBU 2017 030000 BRAKES (PWS)
CHEVROLET MALIBU 2017 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2016 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2016 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2016 030000 BRAKES (PWS)
CHEVROLET MALIBU 2016 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2016 030000 BRAKES (PWS)
CHEVROLET MALIBU 2016 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2015 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2015 030000 BRAKES (PWS)
CHEVROLET IMPALA 2015 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2015 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2015 030000 BRAKES (PWS)
CHEVROLET MALIBU 2015 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2014 030000 SERVICE BRAKES, HYDRAULIC
CHEVROLET IMPALA 2014 030000 BRAKES (PWS)
CHEVROLET IMPALA 2014 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2014 030000 BRAKES (PWS)
CHEVROLET MALIBU 2014 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2014 030000 SERVICE BRAKES, HYDRAULIC

Related CHEVROLET Recalls

CampaignModelYearComponentSummary
SILVERADO 3500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 2500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 1500 2018 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 1500 2018 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 2500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CHEVROLET dealer. Bring this bulletin ID (21-NA-045) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.