Service bulletin RCA-78-26-004-1

Manufacturer communication, from NHTSA Manufacturer Communications

Published by NHTSA: Sep 5, 2026
Manufacturer: RIVIAN
NHTSA ID: 11037101
NHTSA category: Service Bulletin/Repair Instructions
Applies to, as stated by NHTSA: RIVIAN R1S 2025-2026; RIVIAN R1T 2025-2026
Component, as stated by NHTSA: UNKNOWN OR OTHER

Text of the manufacturer communication

Rivian is initiating a customer satisfaction campaign for some model year 2025-2026 R1T and R1S vehicles that may be susceptible to windshield washer fluid leaking from the front fascia camera washer nozzle. The customer may notice washer fluid leaking and/or repeated low washer fluid warnings. Rivian will install a check valve in the hose that supplies the front fascia camera washer nozzle. Rivian is launching this campaign for customer satisfaction and to ensure the quality of Rivian vehicles.

Manufacturer document number: RCA-78-26-004-1
Date of the communication: 2026-08-07
Manufacturer campaign or software version: FSAM-1815

View original source on NHTSA.gov

NHTSA reuses some ID numbers across record types. If its page lists more than one record, this one is the manufacturer communication dated Sep 5, 2026.

For the 2023 Rivian R1S

Adventure, Quad-Motor, Large pack

Ignored

Relevance of 13% is under one half, so the notice is ignored whatever the other figures say.

Vehicle relevance: 13%
Attention: 37%
Interrupt probability: 40%

Importance to this owner: 0.3 of 4, none
Vehicle area the notice is about: Body and interior

This manufacturer communication does not appear to warrant attention for this vehicle.

Decided by jev-1.13.0 in 186 ms from 1,688 input tokens. Jev returns these figures and nothing else. It gives no reasons, and none are written for it here. The figures describe how relevant the notice is, not the condition of any vehicle.

Checked by code against NHTSA's fields

A plain comparison with the structured fields NHTSA filled in. Separate from Jev's decision.

YesNHTSA names this make
YesNHTSA names this model (listed as R1S)
NoNHTSA lists model year 2023 for this model

The same notice, every vehicle

Relevance	Attention	Interrupt	State
13%	37%	40%	Ignored
2%	5%	5%	Ignored
1%	3%	5%	Ignored
1%	3%	5%	Ignored
1%	4%	5%	Ignored
1%	5%	6%	Ignored
1%	5%	6%	Ignored
1%	3%	4%	Ignored
1%	3%	5%	Ignored
1%	3%	5%	Ignored
1%	4%	5%	Ignored
1%	4%	5%	Ignored
1%	4%	5%	Ignored
1%	4%	5%	Ignored
1%	3%	4%	Ignored
1%	4%	5%	Ignored

Select a vehicle to see its attention and interrupt figures above.