After issuing a recall for 638,068 SUVs and trucks for a software issue that could cause unintentional braking, GM (GM) has issued two safety recalls that affect over 814,000 cars and trucks that could lead to a crash or fire.

The first recall affects GM’s 2019 Chevrolet Silverado 1500 pickup trucks, Cadillac CT6 sedans, and GMC Sierra 1500 pickup trucks. The recall stems from an Electronic Brake Control Module (EBCM) software error that could cause the vehicles’ Electronic Stability Control (ESC) and Antilock Brake System (ABS) to disable, increasing the risk of a crash.

According to GM, if the software error occurs, the vehicles will not have a diagnostic code illuminate a warning light on the instrument panel to notify the driver the ESC and ABS are not working properly, which is a violation of the Federal Motor Vehicle Safety Standards

To repair the software issue, GM dealers will reprogram the EBCM free of charge. Affected Silverado, Sierra, and Cadillac owners are expected to be notified by the automaker starting on Jan. 27.

The recall number is N192268090.

The second GM recall was issued for select 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 pickup trucks that may have a poor alternator connection that could cause the vehicle to stall or cause a fire because of electrical arcing.

The issue with the alternator connection is related to the B+ battery cable rings that may have excessive glue on them that is causing an intermittent electrical connection.

To remedy the electrical connection problem, GM dealers will inspect the battery attachment for the presence of glue or contamination and clean the connection. The B+ cable connection will be reattached if necessary. If there has been arcing, which caused damage to the cable, nut, or alternator, it will also be replaced at no charge.

GM said it expects to begin the notifying affected Silverado and Sierra owners on Jan. 27.

The recall number is N192273510.

Questions about the recalls can be directed to Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-333-4223, or GMC customer service at 1-888-988-7267.

Shares of GM stock were down 0.46% as of 10:03 a.m. EST on Thursday.