P2B87 on Chevrolet vehicles
P2B87 is named on 8 Chevrolet model years (2021–2026): 18 manufacturer filings and 0 owner reports in NHTSA’s files, across Suburban, Tahoe, Blazer, Traverse.
Which Chevrolet model years name P2B87
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2021 Chevrolet Suburban | Electrical System | 4 | — |
| 2021 Chevrolet Tahoe | Electrical System | 4 | — |
| 2021 Chevrolet Blazer | Fuel/Propulsion System | 3 | — |
| 2021 Chevrolet Traverse | Air Bags | 3 | — |
| 2026 Chevrolet Suburban | Not specified | 1 | — |
| 2026 Chevrolet Tahoe | Not specified | 1 | — |
| 2025 Chevrolet Suburban | Not specified | 1 | — |
| 2025 Chevrolet Tahoe | Not specified | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Chevrolet filings that name P2B87
Source: NHTSA manufacturer communicationsBulletins and campaigns Chevrolet filed with NHTSA whose summary names P2B87. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIT5789 Service bulletin2020-10-29 · Engine And Engine Cooling — Cooling System — Pump
- This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.
- PIT5789A Service bulletin2020-12-03 · Electrical System — Body Control Module/Bcm
- This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.
- PIT5789A Service bulletin2020-12-03 · Electrical System — Body Control Module/Bcm
- This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering is working on releasing updated BCM cals to correct the concern.
- PIT5804 Service bulletin2020-12-27 · Fuel System, Gasoline
- This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation th
- PIT5804 Service bulletin2020-12-27 · Fuel System, Gasoline
- This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation th
- 21NA024 Service bulletin2022-01-18 · Equipment — Appliance — Air Conditioner
- This technical bulletin provides repair information to correct a customer concern of Service Engine Soon MIL Illuminated with DTC P2B87 Set.
- PIT6505 Service bulletin2026-04-16 · Unknown Or Other
- This preliminary information communicates an issue with an SES MIL DTC P2B87 and/or P2B86 cause by the Aux heater coolant pump have an unwanted oring stuck in the pump. Dealers are to remove oring and reinstall pump.
What P2B87 means
Source: SAE J2012 / OBD-IIP2B87 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P2B87 a known problem on Chevrolet vehicles?
It is a documented one: NHTSA's files hold 18 manufacturer filings and 0 owner reports naming P2B87 on 8 Chevrolet model years (2021–2026). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Chevrolet models does P2B87 appear on most?
2021 Suburban (4 documents), 2021 Tahoe (4 documents), 2021 Blazer (3 documents).
Does P2B87 on a Chevrolet mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.