# P0018 on the 2018 Cadillac CTS

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.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0018

- [10236106](https://open.wenmarpro.com/bulletins/10236106), 2023-05-13: This service bulletin provides information for dealers/technicians on Rough Idle, Malfunction Indicator Lamp \(MIL\) Illuminated After Engine Repairs with DTCs P0016 and/or P0018 Set.
- [10190391](https://open.wenmarpro.com/bulletins/10190391), 2021-04-19: This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
- [10187205](https://open.wenmarpro.com/bulletins/10187205), 2021-02-16: This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
- [10185754](https://open.wenmarpro.com/bulletins/10185754), 2021-01-25: This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
- [10176329](https://open.wenmarpro.com/bulletins/10176329), 2020-06-15: This Preliminary information communicates additional diagnostic information for DTC's P0016 and P0018.
- [10144453](https://open.wenmarpro.com/bulletins/10144453), 2018-09-17: This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft.
- [10137734](https://open.wenmarpro.com/bulletins/10137734), 2018-05-21: This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft.