Information bulletin explains a possible coolant leak coming from the cylinder head bolt areas.
Chevrolet technical service bulletin 22-NA-047 for 2014-2021 Chevrolet Silverado 1500, 2015-2021 Chevrolet Tahoe and 2014-2021 GMC Sierra 1500 and others.
- Bulletin number
- 22-NA-047
- Component
- Engine and engine cooling
- Summary
- Information bulletin explains a possible coolant leak coming from the cylinder head bolt areas.
Owners of these vehicles have filed 4,852 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2014-2021 20142015201620172018201920202021
- Chevrolet Tahoe 2015-2021 2015201620172018201920202021
- GMC Sierra 1500 2014-2021 20142015201620172018201920202021
- Chevrolet Suburban 2015-2021 2015201620172018201920202021
- Chevrolet Corvette 2016-2019 2016201720182019
- GMC Yukon 2014-2021 20142015201620172018201920202021
- Chevrolet Camaro 2016-2021 201620172018201920202021
- GMC Yukon XL 2014-2021 20142015201620172018201920202021
- Cadillac CTS 2016-2019 2016201720182019
- Cadillac Escalade 2015-2021 2015201620172018201920202021
- Chevrolet Suburban 1500 2021 2021
- GMC Yukon Denali 2015-2019 20152016201720182019
- Cadillac Escalade ESV 2015-2021 2015201620172018201920202021
- GMC Yukon Denali XL 2014-2018 20142015201620172018
- Cadillac Escalade Na 2021 2021
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