One of the fixes that GM implemented to address the Chevy Bolt EV and Bolt EUV‘s much-publicized battery fire recall was the addition of Advanced Diagnostics Software (ADS) in the vehicles. This software can detect potential issues with the battery pack before major problems can develop, helping to prevent future battery pack fires and other failures. GM has now started a Customer Satisfaction Program to install a newer version of the ADS in 2017, 2018 and 2019 model-year Chevy Bolt EV models, which it says offers several enhancements and improvements.
The problem: the new ADS will address customer complaints of difficulty connecting the vehicle to a charger or charging station (2019 model year only). It will also reduce false diagnostic activation in certain vehicles under certain driving conditions and help prevent diagnostic data loss compared to the previous software version.
The hazards: this software offers operational improvements and data storing improvements. The first version of this software is required to help detect battery pack problems, which can prevent battery pack fires and other faults.
The fix: dealer technicians will be instructed to install the new ADS in affected vehicles. These updates will be installed at cost to the vehicle owner.
Affected components: ADS, Hybrid Powertrain Control Module 2.
- 2017-2019 Chevy Bolt EV
Number of affected vehicles: all 2017 to 2019 model year Chevy Bolt EV vehicles that received the initial ADS update following the battery fire recall will need to have this update installed as well. It’s unclear how many vehicles this entails.
Owners should: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. Owners can also reach out to GM or NHTSA with further questions or concerns using the contact information included below.
- GM Customer Satisfaction Program number: N222369400
- Chevrolet Customer Service: 1-800-222-1020
- NHTSA Toll Free: 1-888-327-4236
- NHTSA (TTY): 1-800-424-9153