2019 GMC Sierra 1500 Problems

The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions. An ABS system that does not function properly can increase the risk of a crash.

Fix: Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires.

The affected tires were cured for too long during production. Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Fix: Dealers inspect and replace the tires as necessary, free of charge, free of charge.

The affected tires were cured for too long during production. Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Fix: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge.

The seat belt brackets may not be secured to the seat frame in the front-row center seating position. If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.

Fix: GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge.

One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving. If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.

Fix: GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020.

These vehicles received updated software for the Electronic Brake Control Module (EBCM). This software has an error, and as a result, the vehicle's electronic brake assist may be disabled. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems." A loss of electronic brake assist can increase the risk of a crash.

Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge.

Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability Control (ESC) and Antilock Brake System (ABS) may become disabled. Furthermore, if this specific error occurs, the vehicle's diagnostics will not illuminate the instrument cluster ESC and ABS malfunction warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems." If the driver operates the vehicle unaware that ESC and ABS are not functioning, there is an increased risk of a crash.

Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge.

The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator. An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.

Fix: GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components.

When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet. A vehicle fire could result if materials ignite inside the vehicle.

Fix: GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge.

The passenger-side frontal air bag module may have been damaged during assembly, possibly resulting in the air bag not inflating properly in the event of a crash. In the event of a crash, an air bag that does not inflate properly can increase the risk of injury.

Fix: GM will notify owners, and dealers will replace the passenger side air bag module, free of charge.