GM Sleuth

Service Update N232401570 Cell Monitoring Unit Offline

Service Update N232401570 Cell Monitoring Unit ...

GM is releasing an OTA software update for the following vehicles to correct a condition in which the Battery Energy Control Module will not exit "commissioning" (start-up) because a cell...

Service Update N232401570 Cell Monitoring Unit ...

GM is releasing an OTA software update for the following vehicles to correct a condition in which the Battery Energy Control Module will not exit "commissioning" (start-up) because a cell...

Service Update N252516700 High Voltage Battery Software Update

Service Update N252516700 High Voltage Battery ...

GM Has released an OTA Software update for some of its EVs which updates the software for the High Voltage Battery.  GM says This software remedy changes the threshold for...

Service Update N252516700 High Voltage Battery ...

GM Has released an OTA Software update for some of its EVs which updates the software for the High Voltage Battery.  GM says This software remedy changes the threshold for...

GM Issues "Important" OTA Update for 2024 Silverado EV Models

GM Issues "Important" OTA Update for 2024 Silve...

Update N25-251670 This update appeared in our 2024 Silverado EV RST First Edition on October 3rd, 2025 and appears to address some important issues on the 2024 Silverado EV.  Further...

GM Issues "Important" OTA Update for 2024 Silve...

Update N25-251670 This update appeared in our 2024 Silverado EV RST First Edition on October 3rd, 2025 and appears to address some important issues on the 2024 Silverado EV.  Further...

GM EVs Vehicle Wide Programming - Software Updates

GM EVs Vehicle Wide Programming - Software Updates

I decided to write this article because many of you have reached out stating that your GM Dealer has been reluctant to perform software updates on your Silverado EV, Sierra...

1 comment

GM EVs Vehicle Wide Programming - Software Updates

I decided to write this article because many of you have reached out stating that your GM Dealer has been reluctant to perform software updates on your Silverado EV, Sierra...

1 comment

GM Overcharged some 2026 Chevy Silverado EV own...

Customer Satisfaction Program N252521400 GM has mistakenly charged some customers for CARB emissions certification when they purchased their 2026 model year Silverado EV.  If you purchased a 2026 Silverado EV...

GM Overcharged some 2026 Chevy Silverado EV own...

Customer Satisfaction Program N252521400 GM has mistakenly charged some customers for CARB emissions certification when they purchased their 2026 model year Silverado EV.  If you purchased a 2026 Silverado EV...

GM Issues Service Update For Escalade IQ, Silverado/Sierra EV for improperly torqued control arm bolts

GM Issues Service Update For Escalade IQ, Silve...

Service Update N252507500 GM has identified an issue with certain 2025 model year Escalade IQ, Silverado EV, and Sierra EV vehicles in which the rear lower control arm bolts were...

GM Issues Service Update For Escalade IQ, Silve...

Service Update N252507500 GM has identified an issue with certain 2025 model year Escalade IQ, Silverado EV, and Sierra EV vehicles in which the rear lower control arm bolts were...