Tesla VCBATT_a182
Schedule service to replace low voltage battery Software will not update until battery is replaced
Common search variants: VCBATTa182 · VCBATT-a182 · VCBATT a182 · Search ignores case and common separators.
Quick answer
Tesla alert VCBATT_a182 means the low-voltage battery is showing degraded performance and needs replacement. Vehicle software updates will not complete until the battery is replaced. Schedule Tesla service for low-voltage-battery replacement.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does VCBATT_a182 mean?
Tesla alert VCBATT_a182 means the low-voltage battery is showing degraded performance and needs replacement. Vehicle software updates will not complete until the battery is replaced. Schedule Tesla service for low-voltage-battery replacement.
2. Technical explanation
Verified Tesla owner-manual material filed with NHTSA states that VCBATT_a182 identifies degraded low-voltage-battery performance. The stated corrective action is replacement of the low-voltage battery. Until replacement occurs, vehicle software updates will not complete.
3. What system is affected?
Low-voltage battery system.
4. How serious is this code?
Service should be scheduled. The supplied evidence does not assign a formal severity level.
5. Symptoms you may notice
- VCBATT_a182 alert: “Schedule service to replace low voltage battery Software will not update until battery is replaced.”
- Vehicle software updates will not complete until the low-voltage battery is replaced.
6. Possible causes
- The low-voltage battery is showing degraded performance.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Schedule Tesla service to have the low-voltage battery replaced.
- Be aware that vehicle software updates will not complete until replacement occurs.
10. Step-by-step troubleshooting
- No owner-performed troubleshooting procedure is established by the supplied verified evidence.
- Do not attempt high-voltage-system repair based on this alert.
11. When to contact service
Schedule Tesla service for low-voltage-battery replacement.
12. What the service center may check
- Confirm the active VCBATT_a182 alert.
- Assess the low-voltage battery condition. Specific test procedures are not established by the supplied evidence.
13. Possible repair or resolution
- Replace the low-voltage battery. Verified evidence states that software updates will not complete until it is replaced.
14. Affected vehicles
- Tesla Model 3 · 2013–2022 · US
- Tesla Model S · 2012–2020 · US
- Tesla Model S · 2013–2022 · US
- Tesla Model S · 2021–2023 · US
- Tesla Model S · 2021–2024 · US
- Tesla Model S · 2024 · US
- Tesla Model X · 2016–2020 · US
- Tesla Model X · 2021–2023 · US
- Tesla Model X · 2021–2024 · US
- Tesla Model Y · 2020–2023 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 10253661, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253661-9999.pdf
- NHTSA Manufacturer Communication PDF 10253659, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253659-9999.pdf
- NHTSA Manufacturer Communication PDF 10250480, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250480-9999.pdf
- NHTSA Manufacturer Communication PDF 10240952, published June 9, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10240952-9999.pdf
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
NHTSA-hosted Tesla manufacturer communications/owner-manual material state that VCBATT_a182 means the low-voltage battery has degraded performance and needs replacement. Example: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253661-9999.pdf
- NHTSA: NHTSA Manufacturer Communication PDF 10238117: Manual · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10238118: Owners Manual · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10238123: Manual-4 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10238124: Manual-3 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10240948: Owner's Manual-2 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10240952: Documentation · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247391: DocumentationA · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247393: DocumentationC · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247395: DocumentationE · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247397: DocumentationG · official_tsb
19. Frequently asked questions
What does Tesla code VCBATT_a182 mean?
It means the low-voltage battery is showing degraded performance and needs to be replaced.
Why will the software update not complete?
Verified evidence states that vehicle software updates will not complete until the low-voltage battery is replaced.
What should I do?
Schedule Tesla service for low-voltage-battery replacement.
Can I drive or charge the vehicle?
Not yet established by verified evidence.
20. Sources & verification
- NHTSA: NHTSA Manufacturer Communication PDF 10238117: Manual · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10238118: Owners Manual · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10238123: Manual-4 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10238124: Manual-3 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10240948: Owner's Manual-2 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10240952: Documentation · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247391: DocumentationA · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247393: DocumentationC · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247395: DocumentationE · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247397: DocumentationG · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247833: ManualF · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247834: ManualJ · 2023
Show all 29 verified sources
- NHTSA: NHTSA Manufacturer Communication PDF 10247836: ManualL · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247841: ManualP · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247843: ManualR · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250480: Manual · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250484: ManualD · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250488: ManualI · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250489: ManualM · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10251049: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251051: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251059: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251061: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252950: developB · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252952: developD · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252962: terminalA · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252963: terminalB · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10253659: Index355 · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10253661: Index382 · 2024