GM has issued a voluntary emissions recall for certain units of the 2023 Chevy Trailblazer that may be equipped with an incorrect catalytic converter.
The problem: affected units of the 2023 Chevy Trailblazer may have had an incorrect catalytic converter part installed during production. If this is the case, the catalytic converter will not properly process exhaust gases and therefore will fail to meet all emission system requirements.
The hazards: GM has not indicated any hazards potentially caused by the incorrect catalytic converter. However, a 2023 Chevy Trailblazer unable to meet emission system requirements might fail an emissions inspection and maintenance test or prevent a service technician from confirming that the appropriate data is found in the ECM. Either of these situations could potentially cause inconvenience to the owner of the affected vehicle.
The fix: GM has told its dealers to inspect involved 2023 Chevy Trailblazer units. The inspection may enable the dealer to verify the correct catalytic converter was equipped during production. If the inspection reveals an incorrect catalytic converter fitted to the Trailblazer, the dealer is instructed to remove the incorrect converter and replace it with the correct part.
With only a small number of catalytic converters incorrectly installed, GM suggests dealers should verify the presence of an incorrect catalytic converter prior to ordering a replacement part.
GM placed a stop delivery on affected 2023 Chevy Trailblazer units from February 16th, 2023 onward. Involved vehicles currently in inventory should not be delivered to the customer, dealer traded, or used in demonstrations until catalytic converter is inspected and, if necessary, replaced. The stop delivery is released following servicing.
- Warm-up Three-way catalytic converter
Number of affected vehicles: the recall affects 1,500 vehicles, though GM estimates only 32 individual Chevy Trailblazer and Buick Encore GX units in total are actually equipped with incorrect catalytic converters.
Owners should: wait for dealers to contact them, or bring their vehicle to the dealership. For owners who want more information, Chevy’s customer service number is provided below, together with the voluntary emissions recall number.
- GM Voluntary Emission Recall Number: A232398131
- Chevrolet Customer Service: 1-800-222-1020