Certain units of the 2020 GMC Acadia and 2021 GMC Sierra 1500 may have a condition where the evaporative emission purge pump could fail. If this were to occur, affected units could trip the Malfunction Indicator Light – or the Check Engine Light – and set a Diagnostic Trouble Code (DTC).
As a result, General Motors will extend the warranty coverage on affected vehicles from two years or 24,000 miles (whichever comes first) to a period of 15 years or 150,000 miles (whichever comes first) from the date the vehicle was originally placed into service. Notably, California vehicles have a standard warranty period of three years or 50,000 miles (whichever comes first).
It’s worth noting that owners who paid for the repair service themselves may be eligible for reimbursement. Additionally, if the evaporative emission purge pump were to fail, GM certified technicians will replace the emissions equipment as necessary, free of charge.
There is quite an extensive list of vehicles eligible for this extended warranty period, including (engine code in parenthesis):
- 2021 Buick Encore (1.4L I4 LE2)
- 2020 Buick Encore GX (1.3L I3 L3T or 1.2 I3 LIH)
- 2021 Buick Encore GX (1.3L I3 L3T or 1.2 I3 LIH)
- 2020 Cadillac CT4 (2.0L I4 LSY)
- 2020 Cadillac CT5 (2.0L I4 LSY)
- 2020 Cadillac XT5 (2.0L I4 LSY)
- 2020 Chevy Blazer (2.0L I4 LSY)
- 2021 Chevy Silverado 1500 (2.7L I4 L3B)
- 2021 Chevy Trailblazer (1.3L I3 L3T or 1.2 I3 LIH)
- 2021 Chevy Trax (2.0L I4 LSY)
- 2020 GMC Acadia (2.0L I4 LSY)
- 2021 GMC Sierra 1500 (2.7L I4 L3B)
Claims filed on or after July 28th, 2023 for any of the vehicles listed above will be covered.