TSB: BUICK ENCORE, TRAX (2013–2021)

Bulletin 16-NA-405 — December 23, 2016

Bulletin Details

Bulletin ID16-NA-405
ManufacturerBUICK
ModelsENCORE, TRAX
Model Years2013–2021
Date IssuedDecember 23, 2016
Date Added to NHTSAMay 9, 2023
ComponentENGINE (PWS)
Vehicles Affected160 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 provides a procedure to install a PCV heater or a charge air cooler to correct the turbo charger system from freezing causing cold weather performance issues.

Affected Vehicles

MakeModelYearComponent
BUICK ENCORE 2021 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2021 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2021 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2021 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2021 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2021 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2021 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2021 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2021 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2021 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2021 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2020 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2020 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2020 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2020 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2020 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2020 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2020 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2020 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2020 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2020 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2020 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2019 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2019 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2019 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2019 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2019 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2019 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2019 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2019 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2019 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2019 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2019 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2018 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2018 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2018 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2018 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2018 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2018 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2018 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2018 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2018 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2018 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2018 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2017 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
BUICK ENCORE 2017 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
BUICK ENCORE 2017 060000 ENGINE (PWS)
BUICK ENCORE 2017 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2017 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2017 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2017 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2017 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2017 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2017 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2017 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET TRAX 2017 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
CHEVROLET TRAX 2017 060000 ENGINE (PWS)
CHEVROLET TRAX 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2017 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2017 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2017 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2017 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2016 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
BUICK ENCORE 2016 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
BUICK ENCORE 2016 060000 ENGINE (PWS)
BUICK ENCORE 2016 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2016 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2016 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2016 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2016 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2016 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2016 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2016 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET TRAX 2016 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
CHEVROLET TRAX 2016 060000 ENGINE (PWS)
CHEVROLET TRAX 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2016 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2016 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2016 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2016 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2015 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
BUICK ENCORE 2015 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
BUICK ENCORE 2015 060000 ENGINE (PWS)
BUICK ENCORE 2015 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2015 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2015 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2015 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2015 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2015 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2015 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2015 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET TRAX 2015 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
CHEVROLET TRAX 2015 060000 ENGINE (PWS)
CHEVROLET TRAX 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2015 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2015 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2015 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2015 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2014 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
BUICK ENCORE 2014 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
BUICK ENCORE 2014 060000 ENGINE (PWS)
BUICK ENCORE 2014 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2014 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2014 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2014 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2014 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2014 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2014 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2014 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET TRAX 2014 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
CHEVROLET TRAX 2014 060000 ENGINE (PWS)
CHEVROLET TRAX 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2014 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2014 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2014 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2014 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2013 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
BUICK ENCORE 2013 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
BUICK ENCORE 2013 060000 ENGINE (PWS)
BUICK ENCORE 2013 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2013 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2013 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2013 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2013 060000 ENGINE AND ENGINE COOLING
BUICK ENCORE 2013 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
BUICK ENCORE 2013 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2013 061320 ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET TRAX 2013 081200 FUEL SYSTEM, DIESEL: PRE-HEATER
CHEVROLET TRAX 2013 060000 ENGINE (PWS)
CHEVROLET TRAX 2013 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2013 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2013 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2013 110000 ELECTRICAL SYSTEM
CHEVROLET TRAX 2013 060000 ENGINE AND ENGINE COOLING
CHEVROLET TRAX 2013 061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET TRAX 2013 110000 ELECTRICAL SYSTEM

Related BUICK Recalls

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (16-NA-405) 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.