General Motors has decided that a software defect exists in certain 2019-2020 Chevrolet 6500HD trucks. These vehicles have been manufactured with tires that have a maximum speed rating of 75mph (regular production option (RPO) codes XDV for the front tires and YAP for the rear tires) and engine control module software that limits the speed of the vehicle to 79 mph.
In December 2020, Navistar, informed GM that vehicles may have been built with maximum speed limitation calibrations that exceed tire maximum speed ratings. A GM engineering manager reported the issue to GM’s Speak Up For Safety (SUFS) program and preliminary information was collected regarding the issue. GM opened an investigation in February 2021, confirmed the speed limiting software in the ECM and the body control module (BCM) would allow vehicles to reach 79 mph, exceeding the 75 mph maximum speed rating of the tires. In May 2021, GM’s Safety and Field Action Decision Authority (SFADA) decided to conduct a safety recall.
Owners receiving notification letters will be asked to return to their dealers to have the software calibration for the engine control module (ECM) set to limit the vehicles speed so it will not exceed the speed rating of the tires. GM’s number for this recall is N202325530 and the NHTSA campaign number is 21V-346.
In February, Nissan initiated an investigation into reports of an illuminated Malfunction Indicator Lamp (MIL), reduced power and engine stalling in some 2021 Infiniti Q50 And Q60 vehicles. This investigation has resulted in a recall affecting approximately 13,000 vehicles.
According to the defect report, the engine control module (EMC)in the subject vehicles has a software function that prevents unintended acceleration based on monitoring torque input. A problem was found with the EMC software which prevented it from correctly reducing engine speed after an excessive torque detection. As a result, the vehicle would go into limp mode, reducing engine power, illuminating the MIL and eventually stalling. Nissan has received one report of an accident without injuries potentially related to this issue.
Infiniti will be notifying owners to return to their dealerships to get the ECM software reprogrammed. Infiniti’s number for this recall is R20C5 and the NHTSA campaign number is 21V-234.
Some 2021 Cadillac Escalade and Escalade ESV vehicles may fail to comply to the Federal Motor Vehicle Safety Standards (FMVSS) for controls and displays of the occupant crash protection system.
According to the defect report, the front passenger seat belt and airbag status lights on the overhead console could be unknowingly set to night mode, making them not visible to vehicle occupants. The body control module (BCM) software in these vehicles may inadvertently set the “night mode” in the daytime when the remote start is used or when the vehicle is turned off and re-started without opening the door for ten minutes. If night mode is active during the daytime the driver and front passenger may not notice the warning that the seat belt is unbuckled or that the airbag is deactivated. This problem can increase the risk of injury during a crash.
General Motors will be notifying owners of affected vehicles beginning in February. Dealers will correct the problem by updating the BCM software. GM’s number for this recall is N202319980 and the NHTSA campaign number is 20V-790.
Volkswagen will be asking the owners of certain 2017-2018 Audi A3 vehicles to return to their dealerships to correct a problem affecting the engine control unit (ECU). According to the defect report, the engine air/fuel mixture software is not robust enough. During engine start up or idling, the system may misinterpret the rotation of the dual mass flywheel as a knocking condition. The defect will result in loss of lose motive power when beginning to move from a stop or during a slow acceleration. Drivers will be alerted of a problem through an “Engine Stop While Driving” warning light.
Dealers will correct the problem by reprogramming the ECU software. For more information about the recall, owners may contact Audi customer service at 1-800-253-2834. Volkswagen’s number for this recall is 24DF the NHTSA campaign number is 17V-508.
Mercedes Benz has determined that certain 2016-2017 GLE43 & GLE43 Coupe vehicles may have engine control unit (ECU) software that is incompatible with the transmission control unit programming.
Rapid and consecutive downshifts during braking could result in the engine speed to drop below the required threshold and shut down. An engine shutdown could also result following a slight tap of the accelerator pedal after a combination of an ECO start and a simultaneous high engine load. The instrument cluster warning lamps will be activated upon engine shut down with and ignition “ON”, indicating to the driver that the vehicle is not in ECO start/stop mode and needs to be restarted manually.
Dealers will correct the problem by reprogramming the engine and transmission control unit software. Owners wanting more information about the problem are asked to contact MBUSA customer service at 1-877-496-3691. The NHTSA campaign number for this recall is 17V-506.
Chrysler will be contacting the owners of certain 2017 Jeep Renegades regarding a problem affecting the instrument panel warning lights on their vehicle. According to the defect report, an integrated circuit chip and software combination could result in one or more illuminated malfunction indicators when no malfunction exists. (The issue is more likely to occur when the fuel indicator is reading “Low”. ) If the malfunction indicator lamps illuminate at incorrect times, drivers may not be aware when a true malfunction occurs.
Dealers will correct the problem by updating the Instrument Panel Control software. Owners wanting more information about the issue can contact Chrysler customer service at 1-800-853-1403. Chrysler’s number for this recall is T50 and the NHTSA campaign number is 17V-485.
Chrysler will be contacting certain 2017 Fiat 500X owners about a safety problem affecting their vehicles. According to the defect report, the low tire pressure monitoring system (TPMS) warning light may not illuminate under certain circumstances. Driving on under inflated tires could result in reduced vehicle handling and in rare cases, the potential for complete tire failure.
Dealers will correct the problem by updating the instrument panel software. The recall is expected to begin April 21, 2017. Owners wanting more information about the problem are asked to contact Chrysler customer service at 1-800-853-1403. Chrysler’s number for this recall is T16 and the NHTSA campaign number is 17V-146.
Honda will be asking owners of certain 2016 Honda Civic two and four door cars equipped with 1.5L or 2.0L engines, to return to their dealerships for a problem affecting the parking brake. According to the defect report, the stability assist electronic control unit software could prevent the electric parking brake from engaging immediately after turning the ignition off. The vehicle could unexpectedly roll away, increasing the risk of a crash. If the parking brake cannot be applied, the brake warning indicator will blink on the instrument panel for 15 seconds to alert the driver.
Dealers will update the vehicle’s software to allow the braking software to engage immediately after the ignition is turned off. For more information about the problem, owners are asked to contact Honda customer service at 1-888-234-2138. Honda’s number for this recall is KC6 and the NHTSA campaign number is 16V-725.