Tesla DI_w172
Powertrain requires service Avoid hard acceleration
Common search variants: DIw172 · DI-w172 · DI w172 · Search ignores case and common separators.
Quick answer
DI_w172 means Tesla detected an issue in the powertrain system: excessive backlash (lash) between the drive unit and the wheels. Tesla states that excessive lash indicates mechanical wear and that a powertrain inspection is needed. Avoid hard acceleration.
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 DI_w172 mean?
DI_w172 means Tesla detected an issue in the powertrain system: excessive backlash (lash) between the drive unit and the wheels. Tesla states that excessive lash indicates mechanical wear and that a powertrain inspection is needed. Avoid hard acceleration.
2. Technical explanation
Tesla owner-documentation communications filed with NHTSA describe DI_w172 as a detected powertrain issue involving excessive backlash (lash) between the drive unit and the wheels. The documentation states that high or excessive lash is indicative of mechanical wear. It also states that there can be many possible causes, but does not identify specific components or causes for an individual vehicle.
3. What system is affected?
Powertrain system, specifically the relationship between the drive unit and the wheels.
4. How serious is this code?
Not yet established by verified evidence. Tesla instructs the driver to avoid hard acceleration and calls for a powertrain inspection.
5. Symptoms you may notice
- The vehicle displays the alert: “Powertrain requires service Avoid hard acceleration.”
- Tesla documentation states that excessive backlash (lash) between the drive unit and the wheels has been detected.
6. Possible causes
- Excessive backlash (lash) between the drive unit and the wheels.
- Mechanical wear is indicated by high or excessive lash.
- Tesla states there are many possible causes; specific causes are not established by the verified evidence.
7. Can I still drive the vehicle?
Yes, according to the cited Tesla owner documentation: continue to your destination; the vehicle is OK to drive. If the alert persists throughout subsequent drives, schedule service at the earliest convenience. Avoid hard acceleration.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Avoid hard acceleration.
- Continue to the destination as stated in Tesla owner documentation.
- If the alert persists throughout subsequent drives, schedule service at the earliest convenience.
- Arrange for a powertrain inspection.
10. Step-by-step troubleshooting
- No owner-performed diagnostic procedure is established by verified evidence.
- Do not attempt high-voltage or drive-unit repair procedures. Tesla documentation calls for a powertrain inspection.
11. When to contact service
Schedule Tesla service at the earliest convenience if DI_w172 persists throughout subsequent drives. A powertrain inspection is needed.
12. What the service center may check
- Inspect the powertrain, as specified by Tesla documentation.
- Assess the detected excessive backlash (lash) between the drive unit and the wheels.
- Determine the individual cause of the mechanical wear indication; the verified evidence does not specify a component-level diagnostic sequence.
13. Possible repair or resolution
- Not yet established by verified evidence. Tesla documentation establishes that a powertrain inspection is needed, but does not provide a specific repair for DI_w172.
14. Affected vehicles
- Tesla Model 3 · 2017–2023 · US
- Tesla Model S · 2012–2020 · US
- Tesla Model S · 2012–2014 · US
- Tesla Model S · 2021–2023 · US
- Tesla Model X · 2016–2020 · US
- Tesla Model X · 2021–2023 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 10250483: ManualC, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf
- NHTSA Manufacturer Communication PDF 10250482: ManualB, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250482-9999.pdf
- NHTSA Manufacturer Communication PDF 10253660: Index381, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified Tesla owner-documentation communications filed with NHTSA state that DI_w172 concerns excessive backlash between the drive unit and wheels, indicates mechanical wear, requires a powertrain inspection, and permits continued driving while avoiding hard acceleration. Applicability is verified for US Tesla Model 3 (2017–2023), Model S (2012–2023), and Model X (2016–2023).
- NHTSA: NHTSA Manufacturer Communication PDF 10238119: Manual-1 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10238120: Manual-2 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10240950: Owner's Manual-3 · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10240951: Owner's Manual · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247390: Documentation · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247392: DocumentationB · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247394: DocumentationD · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247396: DocumentationF · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247835: ManualK · official_tsb
- NHTSA: NHTSA Manufacturer Communication PDF 10247840: ManualO · official_tsb
19. Frequently asked questions
What does Tesla alert DI_w172 mean?
It means an issue has been detected in the powertrain system. Tesla documentation specifies excessive backlash (lash) between the drive unit and the wheels.
Can I drive with DI_w172?
Tesla documentation says the vehicle is OK to drive and to continue to the destination, while avoiding hard acceleration. If the alert persists throughout subsequent drives, schedule service at the earliest convenience.
Does DI_w172 require service?
Tesla documentation states that a powertrain inspection is needed. If the alert persists throughout subsequent drives, schedule service at the earliest convenience.
Can I charge with DI_w172?
Not yet established by verified evidence.
What repair will fix DI_w172?
Not yet established by verified evidence. The verified documentation calls for a powertrain inspection but does not specify a repair.
20. Sources & verification
- NHTSA: NHTSA Manufacturer Communication PDF 10238119: Manual-1 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10238120: Manual-2 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10240950: Owner's Manual-3 · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10240951: Owner's Manual · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247390: Documentation · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247392: DocumentationB · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247394: DocumentationD · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247396: DocumentationF · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247835: ManualK · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247840: ManualO · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10247842: ManualQ · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250482: ManualB · 2023
Show all 24 verified sources
- NHTSA: NHTSA Manufacturer Communication PDF 10250483: ManualC · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10250487: ManualG · 2023
- NHTSA: NHTSA Manufacturer Communication PDF 10251047: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251048: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251058: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10251060: Owners documenta · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252949: developA · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252951: developC · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252957: developG · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10252958: developH · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10253658: Index373 · 2024
- NHTSA: NHTSA Manufacturer Communication PDF 10253660: Index381 · 2024