- June 14: Chevrolet Corvette Recall Issued Over Seat Belt Problems recalls | 0 days ago
- June 8: Chevy Bolt Battery Lawsuit Settlement Reached news | 6 days ago
- May 22: GM Duramax Diesel Lawsuit Awaiting Appeals Court Decision news | 23 days ago
- May 7: GM Transmission Lawsuit Affects Hydra-Matic 8L90 and 8L45 news | 38 days ago
- April 17: GM Shift to Park Recall Needed, Alleges Class Action Lawsuit news | 58 days ago
Chevrolet TSB #17-NA-321
2018 Chevrolet Impala
TSB Document: - Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 17-NA-321.
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
- Summary
- Exhaust Smell and/or Leak with Possible Malfunction Indicator Lamp Illuminated Condition Some customers may comment on an exhaust smell and/or leak with possible malfunction indicator lamp illuminated. During diagnosis, a technician may find DTC P0430 and/or P0420. Cause This may be due to a crack around the catalytic mounting flange. Correction Replace converter assembly with new service part.
Click a tab for more information.