Chevrolet U0402
G111 and/or G112 may not be properly torqued. Correction: Inspect G111 and G112 to co
Quick answer
For a 2025 Chevrolet Equinox in the US, DTC U0402 is listed in GM bulletin PIT6282/PIT6282A in connection with G111 and/or G112 possibly not being properly torqued. The bulletin directs inspection of G111 and G112 for the stated correction.
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 U0402 mean?
For a 2025 Chevrolet Equinox in the US, DTC U0402 is listed in GM bulletin PIT6282/PIT6282A in connection with G111 and/or G112 possibly not being properly torqued. The bulletin directs inspection of G111 and G112 for the stated correction.
2. Technical explanation
Verified evidence identifies U0402 as one of several DTCs that may be present when G111 and/or G112 are not properly torqued. The supplied bulletin evidence does not establish a broader generic definition of U0402 beyond this bulletin-specific condition.
3. What system is affected?
G111 and G112 are the affected items identified by the verified bulletin evidence. Their broader system assignment is not yet established by verified evidence.
4. How serious is this code?
Not yet established by verified evidence. However, the bulletin associates this condition with a possible stall or no-start.
5. Symptoms you may notice
- Vehicle stall.
- No-start condition.
- Clicking starter when the Start button is pressed.
- DTC U0402 may be present.
6. Possible causes
- G111 and/or G112 may not be properly torqued.
7. Can I still drive the vehicle?
Not yet established by verified evidence. Because the verified bulletin associates the condition with a possible stall, arrange professional assessment rather than assuming continued driving is safe.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- If the vehicle has stalled or will not start, seek qualified service assistance.
- Have a Chevrolet/GM service provider inspect G111 and G112 in accordance with the applicable manufacturer bulletin.
- Do not attempt unspecified electrical or high-voltage repairs based on this information.
10. Step-by-step troubleshooting
- Confirm whether U0402 is stored.
- Check whether the vehicle has experienced a stall, a no-start condition, or clicking when the Start button is pressed.
- Refer a 2025 Chevrolet Equinox to a qualified GM service provider for the bulletin-directed inspection of G111 and G112.
11. When to contact service
Contact a Chevrolet/GM dealer or qualified service provider, particularly if the vehicle stalls, will not start, or produces a clicking-starter condition when the Start button is pressed.
12. What the service center may check
- Inspect G111 and G112 as directed by GM bulletin PIT6282/PIT6282A.
- Determine whether G111 and/or G112 are properly torqued. Further inspection details and specifications are not included in the supplied verified evidence.
13. Possible repair or resolution
- The verified bulletin correction is to inspect G111 and G112. Any exact repair procedure, torque specification, replacement decision, or post-repair validation is not yet established by the supplied verified evidence.
14. Affected vehicles
- Chevrolet Equinox · 2025 · US
15. Related TSBs / service bulletins
- GM PIT6282, published November 12, 2024; NHTSA manufacturer communication MC-11011192. It identifies U0402 among DTCs that may be present with a stall or no-start/clicking starter condition and states that G111 and/or G112 may not be properly torqued.
- GM PIT6282A, published November 18, 2024; NHTSA manufacturer communication MC-11011319. It identifies the same condition and directs inspection of G111 and G112.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official NHTSA-hosted manufacturer communications: PIT6282A (MC-11011319), https://static.nhtsa.gov/odi/tsbs/2024/MC-11011319-0001.pdf; PIT6282 (MC-11011192), https://static.nhtsa.gov/odi/tsbs/2024/MC-11011192-0001.pdf.
19. Frequently asked questions
What does U0402 mean for a 2025 Chevrolet Equinox?
In the supplied GM bulletin evidence, U0402 is listed as a DTC that may be present when G111 and/or G112 may not be properly torqued.
What symptoms are associated with this bulletin?
The bulletin states that the vehicle may experience a stall or a no-start with a clicking starter when the Start button is pressed.
What is the documented correction?
The bulletin directs inspection of G111 and G112. Further procedure details are not established by the supplied verified evidence.
Is U0402 covered by a recall?
Not yet established by verified evidence.