- 2025–2026 Factory-verified
A7K Factory-verified
Also described as Seat adjuster, front passenger, 8-way powerSeat adjuster, passenger power, 10-way, including lumbarSeat adjuster, passenger 10-way power including lumbarSeat adjuster, passenger 12-way power including lumbarSeat adjuster, passenger 16-way power including lumbar and massageSeat adjuster, passenger, 10-way power with lumbarSeat adjuster, passenger, 8-way powerFront passenger seat, 8-way power
Also documented for BuickCadillacChevrolet
Documented applications
- 2025–2026 Factory-verified
- 2025–2027 Factory-verified
the 2025 guide prints "with 4-way power lumbar"; 2026 and 2027: included with and only available with ZM9; 2025: S in 5SC, 5SD; 2026: S in 4SC, 4SD, 5SB, 5SC, 5SD; A in 3SC; not offered in 3SB; 2027: S in 4SC, 4SD, 5SC, 5SD; A in 3SC; not offered in 3SB
- 2027 Factory-verified
Pro, Elevation 3VL: not offered; Elevation 3SB: O; AT4, AT4X, Denali, Denali Ultimate: included in the trim group; the code list prints passenger power; 10-way and lumbar from the Elevation Premium Edition (ST1) contents
- 2025–2027 Factory-verified
this code has another meaning in two other A7K rows (the guides print the 10, 12 and 16-way readings); SLT, AT4: S; Pro, SLE, AT4X, Denali, Denali Ultimate: not offered
- 2025–2027 Factory-verified
this code has another meaning in two other A7K rows (the guides print the 10, 12 and 16-way readings); Denali: S; Pro, SLE, SLT, AT4, AT4X, Denali Ultimate: not offered
- 2024–2027 Factory-verified
this code has another meaning in two other A7K rows (the guides print the 10, 12 and 16-way readings); AT4X, Denali Ultimate: S; Pro, SLE, SLT, AT4, Denali: not offered; 2024: GM Authority 2024 changes page (16-way power seats with massage, standard on AT4X and Denali Ultimate)
- 2019–2020, 2022–2026 Factory-verified
the upfitter lists describe the 8-way power adjuster (recline, fore/aft, height, tilt); the 2025–2026 guides count the lumbar as 10-way
- 2025–2027 Factory-verified
S: Denali (from 2026); O: Elevation, AT4 (from 2026); included in, and only available with, ZL4
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
This page aggregates every documented appearance of A7K in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.