GM LM2 P06DD/P2B60/P26BB/P1098: calibration branch. See the manufacturer document, vehicle conditions, exclusions and questions for a qualified shop before assuming a repair.
This is a research summary of a manufacturer communication, not a diagnosis for your car, a DIY repair procedure or confirmation of warranty or recall eligibility. No qualified technician has approved a repair for your individual vehicle here.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the General Motors original: LM2 MIL with P06DD/P2B60/P26BB/P1098; ECM calibration branch · Check open recalls by VIN at NHTSA Source date: 2022-07; research checked: 2026-11-01.
What prompted this manufacturer document
- A calibration condition can be relevant when these codes are present/current or in history on the specified LM2 applications.
Which vehicle conditions must be checked
Each row below retains its own conditions. Do not combine engines, years or models across rows to create new applications. A listed model is not proof that a particular VIN is affected.
- Cadillac Escalade / Escalade ESV · 2021, 2022 · LM2
- Chevrolet Tahoe / Suburban · 2021, 2022 · LM2
- GMC Yukon / Yukon XL · 2021, 2022 · LM2
- Chevrolet Silverado 1500 · 2020, 2021 · LM2
- GMC Sierra 1500 · 2020, 2021 · LM2
- Chevrolet Silverado 1500 LTD / New · 2022 · LM2; J21 VIN 5 W/Y or J22 VIN 5 A/D; confirm source variant
- GMC Sierra 1500 Limited / New · 2022 · LM2; J21 VIN 5 8/9 or J22 VIN 5 H/U; confirm source variant
- Already-updated or recurring faults still require normal service diagnosis.
- The bulletin is not proof that a physical oil-pressure problem is harmless.
Codes recorded in this document
A root listed only as an appearance has no separately verified meaning here. Preserve every suffix and module name; a shared root does not transfer a repair branch to another vehicle.
| Root | Raw form | Meaning in this source, if established |
|---|---|---|
| P06DD | P06DD | Appears in the document; individual meaning not verified |
| P2B60 | P2B60 | Appears in the document; individual meaning not verified |
| P26BB | P26BB | Appears in the document; individual meaning not verified |
| P1098 | P1098 | Appears in the document; individual meaning not verified |
What an owner can record safely
- Record warning text and whether an oil-pressure warning or mechanical noise is also present.
What the source does not prove
- Do not continue driving an oil-pressure warning because an online bulletin mentions software.
- A code or message alone does not establish a failed part, a safe-to-drive decision or an approved repair for this VIN.
- A service bulletin is not automatically a recall or free warranty repair. Confirm current eligibility directly.
Questions for the repair shop
- Is an update actually applicable, and what tests exclude a real lubrication/control fault?
- Does a later revision or a current recall change the source's original advice?
- What measurement or inspection confirms the cause, and how will the repair be verified?
Read the original record
The linked communication may be revised after the research date. Compare its document number, exact vehicle table, diagnostic preconditions and exclusions with a qualified technician. This page paraphrases selected facts and does not reproduce the manufacturer procedure.
Sources and scope
- General Motors — LM2 MIL with P06DD/P2B60/P26BB/P1098; ECM calibration branch (22-NA-082) Document: 2022-07 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.