Auto safety regulators said a brake control module software on some GM models may fail to display a warning light when a loss of brake fluid occurs.

Without the warning light, a vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash, safety agency said.

General Motors is recalling 449,671 pickup trucks and SUVs in the U.S. due to inoperative low brake fluid warning, the U.S. National Highway Traffic Safety Administration said on Friday.