TSB: CADILLAC CAMARO, CORVETTE, CTS, ESCALADE, ESCALADE ESV, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SUBURBAN, TAHOE, YUKON, YUKON XL (2014–2022)

Bulletin 20NA166 — August 21, 2020

Bulletin Details

Bulletin ID20NA166
ManufacturerCADILLAC
ModelsCAMARO, CORVETTE, CTS, ESCALADE, ESCALADE ESV, SIERRA 1500, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 4500HD, SUBURBAN, TAHOE, YUKON, YUKON XL
Model Years2014–2022
Date IssuedAugust 21, 2020
Date Added to NHTSAMay 31, 2022
ComponentENGINE AND ENGINE COOLING
Vehicles Affected253 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 informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running

Affected Vehicles

MakeModelYearComponent
CHEVROLET CAMARO 2022 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2022 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2022 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 1500 2022 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2022 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2022 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2022 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2022 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2022 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2022 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2021 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2021 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 1500 2021 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2021 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2021 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2021 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2021 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2020 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2020 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2020 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2020 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 1500 2020 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2020 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2020 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2020 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2020 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2020 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2020 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CORVETTE 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC CTS 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2019 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 1500 2019 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2019 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA DENALI 2019 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2019 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 2500 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 4500HD 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 4500HD 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 4500HD 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2019 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2019 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2019 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2019 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2019 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CORVETTE 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC CTS 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2018 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 2500 2018 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2018 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA DENALI 2018 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2018 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 2500 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2018 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2018 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2018 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2018 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2018 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CORVETTE 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC CTS 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2017 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 2500 2017 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2017 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA DENALI 2017 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2017 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 2500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2017 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2017 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2017 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2017 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2017 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CAMARO 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET CAMARO 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET CORVETTE 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET CORVETTE 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC CTS 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC CTS 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2016 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 2500 2016 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2016 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA DENALI 2016 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2016 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 2500 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2016 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2016 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2016 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2016 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2016 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC CTS 2015 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2015 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2015 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CADILLAC ESCALADE ESV 2015 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2015 060000 ENGINE AND ENGINE COOLING
CADILLAC ESCALADE ESV 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 2500 2015 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2015 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA DENALI 2015 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2015 060000 ENGINE AND ENGINE COOLING
GMC SIERRA DENALI 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 2500 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SUBURBAN 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET SUBURBAN 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET TAHOE 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET TAHOE 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON 2015 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2015 060000 ENGINE AND ENGINE COOLING
GMC YUKON 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC YUKON XL 2015 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2015 060000 ENGINE AND ENGINE COOLING
GMC YUKON XL 2015 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
GMC SIERRA 1500 2014 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2014 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2014 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
CHEVROLET SILVERADO 1500 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2014 062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

Related CADILLAC Recalls

CampaignModelYearComponentSummary
CTS 2016 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
ATS 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
ESCALADE 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
SRX 2015 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...
SRX 2016 AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR... General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalad...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CADILLAC dealer. Bring this bulletin ID (20NA166) 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.