B3215

Left Rear window motor circuit malfunction; Left Rear Window Motor Circuit Internal Malfunction; Left Rear Window Motor Circuit Calibration Not Programmed; Left Rear Window Motor Circuit Calibration Not Learned

B3215 is described as “Left Rear window motor circuit malfunction; Left Rear Window Motor Circuit Internal Malfunction; Left Rear Window Motor Circuit Calibration Not Programmed; Left Rear Window Motor Circuit Calibration Not Learned” in the GM reference.

Some scan tools (for example GM and Ford dealer tools) display this code with a failure-type suffix, such as B3215-00 or B3215:00; the base code B3215 is the same.

Manufacturer reference family

GM: B3215

Reference namespace: gm
Source revision: legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording

Source and applicability

OBD Lens production library legacy-owner-2026-11-02-v84-evidence. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-11-02-v84-evidence. Sources and scope