Chevrolet P1AEE
Perform the high voltage disable procedure and check for damaged high voltage connectors and terminals at the K10 Coolant Heater Control Module. If there are signs of arcing or ter
Quick answer
For certain 2016–2017 Chevrolet Volt vehicles in North America, DTC P1AEE is documented in GM bulletin PIC6266 together with possible heater-message, no-start, or loss-of-propulsion concerns. The bulletin identifies a potentially incompletely seated high-voltage X2 connector at the K10 Coolant Heater Control Module.
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 P1AEE mean?
For certain 2016–2017 Chevrolet Volt vehicles in North America, DTC P1AEE is documented in GM bulletin PIC6266 together with possible heater-message, no-start, or loss-of-propulsion concerns. The bulletin identifies a potentially incompletely seated high-voltage X2 connector at the K10 Coolant Heater Control Module.
2. Technical explanation
Verified evidence links P1AEE to GM bulletin PIC6266. The bulletin directs service personnel to perform the high-voltage disable procedure and inspect high-voltage connectors and terminals at the K10 Coolant Heater Control Module for damage. The supplied bulletin summary states that the X2 high-voltage connector at this module may not have been fully seated during vehicle assembly.
3. What system is affected?
High-voltage connector X2 and terminals at the K10 Coolant Heater Control Module.
4. How serious is this code?
Not yet established by verified evidence. However, the verified bulletin describes cases involving no start or loss of propulsion.
5. Symptoms you may notice
- Service Heater driver-information-center message.
- DTC B048E symptom 00.
- Check-engine lamp in some cases.
- No start in some cases.
- Loss of propulsion in some cases.
- Additional DTC P1AEF in some cases.
6. Possible causes
- The X2 high-voltage connector at the K10 Coolant Heater Control Module may not have been fully seated at the vehicle assembly plant.
- The bulletin calls for checking the relevant high-voltage connectors and terminals for damage, including signs of arcing or terminal damage.
7. Can I still drive the vehicle?
Not yet established by verified evidence. Because the verified bulletin reports possible loss of propulsion, do not assume continued driving is safe if propulsion-related warnings or symptoms occur.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- If the vehicle has a no-start or loss-of-propulsion condition, arrange qualified service rather than attempting high-voltage connector work.
- Do not inspect, disconnect, reseat, or repair high-voltage connectors yourself.
- Record all warning messages and diagnostic codes for the service facility.
- Have a qualified Chevrolet/GM service technician evaluate the vehicle using the applicable high-voltage disable procedure.
10. Step-by-step troubleshooting
- Qualified service procedure: perform the high-voltage disable procedure.
- Inspect high-voltage connectors and terminals at the K10 Coolant Heater Control Module.
- Check the X2 high-voltage connector for proper seating.
- Check for connector or terminal damage, including signs of arcing or terminal damage.
11. When to contact service
Contact a qualified Chevrolet/GM service facility. The supplied official bulletin requires a high-voltage disable procedure and inspection of high-voltage components.
12. What the service center may check
- Perform the high-voltage disable procedure.
- Inspect high-voltage connectors and terminals at the K10 Coolant Heater Control Module.
- Verify seating of the X2 high-voltage connector.
- Inspect for signs of arcing or terminal damage.
13. Possible repair or resolution
- Not yet established by verified evidence beyond the bulletin instruction to perform the high-voltage disable procedure and inspect the specified connectors and terminals.
14. Affected vehicles
- Chevrolet Volt · 2016–2017 · US
15. Related TSBs / service bulletins
- GM/Chevrolet PIC6266, published March 8, 2017; NHTSA Manufacturer Communication 10138162. It applies to 2016–2017 Chevrolet Volt vehicles in North America according to the supplied evidence.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10138162, GM bulletin PIC6266: https://static.nhtsa.gov/odi/tsbs/2017/MC-10138162-9999.pdf
19. Frequently asked questions
What does P1AEE mean for a 2016–2017 Chevrolet Volt?
The supplied verified evidence associates P1AEE with GM bulletin PIC6266, which directs inspection of high-voltage connectors and terminals at the K10 Coolant Heater Control Module and identifies a potentially incompletely seated X2 high-voltage connector.
Can P1AEE cause a no-start or loss of propulsion?
The bulletin states that, in some cases, customers may report a check-engine lamp with a no-start or loss of propulsion and additional DTCs P1AEE and P1AEF.
Is P1AEE a do-it-yourself repair?
No high-voltage repair instructions are established for vehicle owners. The official bulletin calls for a high-voltage disable procedure and inspection of high-voltage components, which should be performed by qualified service personnel.
Which vehicles are covered by the supplied bulletin evidence?
The supplied applicability evidence identifies Chevrolet Volt model years 2016–2017 in the US, while the bulletin summary identifies North America.