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GMC Sierra 1500 And Acadia Get Extended Evaporative Emission Purge Pump Warranty

Select units of the GMC Sierra 1500 and GMC Acadia have been issued an extended evaporative emission purge pump warranty period from General Motors due to the potential for failure.

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).

Front-three-quarter photo of 2019 GMC Sierra 1500 AT4.

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.

2020 GMC Acadia AT4.

There is quite an extensive list of vehicles eligible for this extended warranty period, including (engine code in parenthesis):

Claims filed on or after July 28th, 2023 for any of the vehicles listed above will be covered.

Subscribe to GM Authority for more GMC Sierra 1500 news, GMC Acadia news, GM business news, and around-the-clock GM news coverage.

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