# P1101 on the 2018 Buick Regal

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1101

- [10167456](https://open.wenmarpro.com/bulletins/10167456), 2019-11-12: This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O\-ring seal in the charge air cooler coupler.
- [10157043](https://open.wenmarpro.com/bulletins/10157043), 2019-04-08: This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O\-ring seal in the charge air cooler coupler.
- [10157016](https://open.wenmarpro.com/bulletins/10157016), 2019-04-08: This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O\-ring seal in the charge air cooler coupler.
- [10143779](https://open.wenmarpro.com/bulletins/10143779), 2018-08-20: This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O\-ring seal in the charge air cooler coupler.
- [10118274](https://open.wenmarpro.com/bulletins/10118274), 2017-10-04: This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O\-ring seal in the charge air cooler coupler.