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SIB 84 03 26: Telematics unit failure
Telematics unit failure on BMW I01/I12/I15 models (2020); BMW repairs affected cars free under a service campaign.
BMW service campaign · NHTSA ID 11035409 · Jul 2026 · also written SI B84 03 26, B840326
What it covers
A service campaign is a fix BMW performs free on affected cars. Ask a BMW center whether it is open on your VIN.
Once the Telematics Module (TCB2) enters sleep mode, a BMW Data Services trigger for Remote Services(remote engine start, lock/unlock/climate conditioning) will not be able to reactivate the TCB2. Due to this issue, Remote Services will not function in the vehicle when parked and locked.
Details
| Bulletin number | SIB 84 03 26 Also written: SI B84 03 26, B840326, 84 03 26, SIB-84-03-26, SI B840326 |
|---|---|
| NHTSA ID | 11035409 |
| Document IDs filed | B840326 |
| Type | Service campaign |
| Date | |
| Models | I3, I8 |
| Model years | 2020 |
| Chassis | I01, I12, I15 |
| Engines | B38, Electric, W20 |
| Component (NHTSA) | Electrical System |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
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Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.