Technical Service Bulletin SSM 51321 — 2020 FORD EXPEDITION
EXTERIOR LIGHTING:HEADLIGHTS
Bulletin Details
| TSB ID | SSM 51321 |
| Manufacturer | |
| Vehicle | 2020 FORD EXPEDITION |
| Component | EXTERIOR LIGHTING:HEADLIGHTS |
| Communication Date |
Bulletin Summary
Some 2018-2022 Expedition vehicles may exhibit a condition of intermittent headlamp operation while the vehicle is OFF and have diagnostic trouble code (DTC) B1533 stored in the body control module (BCM). This may be due to the internal logic within the headlamp switch. Switch and/or module replacement will not resolve this condition. Headlamp operation is not affected while the vehicle is ON. A new headlamp switch is currently under development to correct this condition. Let the customer know they can continue to drive the vehicle and schedule a follow-up appointment in May 2023, when parts are expected to become available. Follow up with the customer to confirm the appointment once OASIS is updated with the repair information.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2020 FORD EXPEDITION
TSB 23-2350
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
SAN Vol1 Issue2
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
TSB 23-2256
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
TSB 22-2225
ELECTRICAL SYSTEM:SOFTWARE
TSB 22-2041
ELECTRICAL SYSTEM
TSB 22-2041
EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS
TSB 21-2381
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
TSB 21-2396
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
TSB 21-2396
ELECTRICAL SYSTEM
SSM 50251
COMMUNICATION:MANUFACTURER TELEMATICS