This is a Genuine GM OEM Front Seat Lumbar Switch in Galvano Silver with a Black/Chrome 4-Way Lumbar design, fitting the Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, GMC Yukon XL, Cadillac Escalade, and Cadillac Escalade ESV. It controls four-way lumbar adjustment for the front seat and is cataloged as a Seat Back Cushion Switch in GM parts diagrams.
This Genuine OEM part fits either the Driver or Passenger Side front seat position. Compatible engines include the 2.7L L4 Gas, 5.3L V8, and 6.2L V8 on Silverado and Sierra applications, and the 5.3L V8, 6.2L V8, and 3.0L L6 Diesel on Tahoe, Suburban, Yukon, Yukon XL, Escalade, and Escalade ESV applications. Fitment covers seats with four-way lumbar in Galvano Silver finish; compatible with both ventilated and non-ventilated seat configurations, and without massage. Escalade applications include with-power ventilated and without-ventilated seat cushion variants.
Quick Part Facts
- Condition: New OEM — Genuine GM
- Position: Front Seat, Driver or Passenger Side
- Color/Finish: Galvano Silver, Black/Chrome 4-Way Lumbar
- Lumbar Type: 4-Way Lumbar Adjustment
- Engines: 2.7L L4 Gas, 5.3L V8, 6.2L V8, 3.0L L6 Diesel (application-dependent)
- Options: Compatible with ventilated and non-ventilated seat cushion configurations; without massage
Fitment
| Year Range |
Make |
Model |
Trim/Engine |
Notes/Options |
| 2019–2024 |
Chevrolet |
Silverado 1500 |
2.7L L4 Gas, 5.3L V8, 6.2L V8 |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with or without ventilated seat cushion; without massage |
| 2019–2024 |
GMC |
Sierra 1500 |
2.7L L4 Gas, 5.3L V8, 6.2L V8 |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with or without ventilated seat cushion; without massage |
| 2021–2024 |
Chevrolet |
Tahoe |
5.3L V8, 6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Passenger Side; Option Code AVU; with or without ventilated seat cushion; without massage |
| 2021–2024 |
Chevrolet |
Suburban |
5.3L V8, 6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Passenger Side; Option Code AVU; with or without ventilated seat cushion; without massage |
| 2021–2023 |
GMC |
Yukon |
5.3L V8, 6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with or without ventilated seat cushion; without massage |
| 2021–2023 |
GMC |
Yukon XL |
5.3L V8, 6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with or without ventilated seat cushion; without massage |
| 2021–2024 |
Cadillac |
Escalade |
6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with power ventilated or without ventilated seat cushion; without massage |
| 2021–2024 |
Cadillac |
Escalade ESV |
6.2L V8, 3.0L L6 Diesel |
4-Way Lumbar; Galvano Silver; Driver or Passenger Side; with power ventilated or without ventilated seat cushion; without massage |