GM remembers almost 340,000 giant SUVs to repair daytime working lights

Common Motors has initiated a recall marketing campaign for greater than 338,000 of its giant SUVs to deal with a possible defect within the onboard pc software program that controls the daytime working lights. In some circumstances, the DRLs might stay on even when the headlights are enabled, which creates extra glare for oncoming drivers at night time and fails to adjust to federal rules for headlight efficiency. 

“GM decided that the physique management module (BCM) software program in these automobiles, underneath a mix of sure pre-conditions, might fail to deactivate the DRLs when the headlamps are on,” GM’s recall report mentioned. “A regulatory evaluation was performed to guage whether or not the situation introduced a possible noncompliance with the DRL activation necessities in S7.10.5, Desk I-a. of FMVSS 108. On October 27, 2022, GM’s Security Subject Motion Resolution Authority (SFADA) determined to conduct a recall for potential noncompliance with this normal.”

GM says the recall covers the 2021 mannequin yr GMC Yukon and Yukon XL, 2021 Chevrolet Tahoe and Suburban, and 2021 Cadillac Escalade and Escalade ESV. The corporate says all fashions produced inside that working window embrace the improperly programmed physique management module, that means all automobiles inside the recall inhabitants might exhibit the issue. The difficulty was found by a GM engineer throughout validation testing in August, prompting a deeper investigation and ultimately resulting in the recall itself.  

The module’s software program may be up to date by GM sellers, so it needs to be a fast repair for purchasers. Notifications will likely be mailed to homeowners in December. 

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