The ongoing global microchip shortage has impacted all four of GM’s U.S. brands, including GMC, with vehicle production and feature availability both affected by reduced supplies of these critical components. Now, GM Authority has learned that several GMC models are no longer being built with ventilated seat blower motors as a result of the shortage.
According to GM Authority sources, select units of the 2022 GMC Sierra 1500, 2022 GMC Sierra HD, 2022 GMC Acadia, and 2022 GMC Yukon are now being built without ventilated seat blower motors, starting with April 4th production.
Critically, these select units were already under constraint for ventilated front seats, specifically the feature’s control module. The difference now is that not only are some of these GMC models missing a control module due to the microchip shortage, but they are missing the feature’s blower motor as well.
Both of these elements will be eligible for a retrofit at a later date. Per usual, the window sticker for each affected vehicle will indicate which features are missing that would normally be included.
Look over the table below for a more complete list of the 2022 model-year GMC vehicles affected by feature constraints as a result of the microchip shortage. To note, further feature constraints include the heated steering wheel, heated front seats, heated outboard rear seats, Rear Park Assist, and Front And Rear Park Assist.
|Model||Affected Trim Levels||Affected Units||Heated Steering Wheel||Heated Front Seats||Ventilated Front Seats||Ventilated Front Seat Blower Motors||Heated Outboard Rear Seats||Rear Park Assist||Front And Rear Park Assist|
|Acadia||SLE, SLT, AT4, Denali||Some units||X7|
|Acadia||SLE, SLT, AT4||Some units||X4,9|
|Acadia||SLT, AT4||Some units||X4,9||X10|
|Acadia||SLT, AT4, Denali||Some units||X4,9|
|Canyon||Elevation Standard, Elevation, AT4, Denali||Some units||X7|
|Canyon||Elevation, AT4, Denali||All units||X4,9|
|Sierra 1500 Limited||Pro, SLE, Elevation, SLT, AT4, Denali||Some units||X7|
|Sierra 1500 Limited||SLE, Elevation, SLT, AT4||All units||X6|
|Sierra 1500 Limited||SLE, Elevation, SLT, AT4||Some units||X3|
|Sierra 1500 Limited||SLT, AT4||Some units||X3|
|Sierra 1500 Limited||SLT, AT4, Denali||All units||X1|
|Sierra 1500||Pro, SLE, Elevation||Some units||X1|
|Sierra 1500||SLE, Elevation, SLT, AT4||Some units||X9|
|Sierra 1500||SLE, Elevation, SLT, AT4, Denali||Some units||X1|
|Sierra 1500||SLT, AT4||Some units||X9||X10|
|Sierra 1500||SLT, AT4, Denali||Some units||X9|
|Sierra 1500||SLT, AT4, AT4, AT4X, Denali, Denali Ultimate||Some units||X1|
|Sierra HD||Pro, SLE, SLT, AT4, Denali||Some units||X7|
|Sierra HD||SLE, SLT, AT4||Some units||X4,9|
|Sierra HD||SLT, AT4||Some units||X4,9||X10|
|Sierra HD||SLT, AT4, Denali||Some units||X2|
|Terrain||SLE, SLT, AT4, Denali||Some units||X5,9|
|Yukon||SLE, SLT, AT4, Denali||Some units||X8|
|Yukon||SLT, AT4||Some units||X6||X9||X9||X10||X9|
- Feature unavailable since beginning of 2022 model year production
- Feature unavailable since July 26th, 2021 production
- Feature made unavailable as of November 15th, 2021 production
- Feature made unavailable between November 15th, 2021 and February 20th, 2022 production
- Feature made unavailable between November 15th, 2021 and February 28th, 2022 production
- Feature made unavailable as of December 6th, 2021 production
- Feature made unavailable as of December 20th, 2021 production
- Feature made unavailable as of January 24th, 2022 production
- Feature made unavailable as of March 14th, 2022 production
- Feature made unavailable as of April 4th, 2022 production
GM Authority previously reported on the Buick and Chevy models affected by the latest constraint for the ventilated seat blower motor, so check out the previous GM Authority coverage for more information.
In addition to widespread feature constraints, the microchip shortage has also impacted GM’s available new-vehicle inventory, which, at the moment, is handily outstripped by customer demand. According to one recent report, new-vehicle inventory days’ supply across the auto industry was in the low 30s in March. Going forward, GM is now developing its own family of microcontrollers in an effort to combat the effects of possible future microchip shortages.