The e-brake may be off but the e-brake cable(s) may be frozen or need to be adjusted.
The most probable cause is that the brake light switch is out of adjustment.
Check the switch adjustment on the brake pedal arm.
the brake light switch is out of adjustment. Readjust the switch.
Brake light switch either out of adjustment or defective Should be located at upper end of brake pedal under dash
A broken or out of adjustment brake light switch.
A defective or out of adjustment brake light switch.
un equal adjustment of brakes will cause one brake to apply earlier and harder than other brake
The brake light switch is under the dash, and whenever the brake pedal is touched the brake light comes on. If the switch has failed or is out of adjustment it will leave the brake light on.
Answer 1 - Excessive Pressure Required to Activate Brake LightsAlthough I am not familiar with your vehicle, I suspect that the cause for the symptom you describe is that the brake light switch position is out of adjustment.
It's probably a worn suspension part.
Most common reason: rust and dirt.
Check your chair switch!