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Service bulletin S29926

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10234658
Published by NHTSA2023-04-24
Manufacturer's numberS29926
Manufacturer's date2018-04-23
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

Volvo Car USA LLC and Volvo Car Canada LTD (Volvo) on behalf of Volvo Car Corporation, have decided to launch Service Action S29926 on certain model year 2018 ? 2019 XC60, S60, S90 and XC90 vehicles. Volvo has identified that the Electric Rear Axle Drive (ERAD) thermostat may not completely open, which can result in low or no coolant flow and a Malfunction Indicator Lamp (MIL) illuminated.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Vehicles listed
VOLVO S602018, 2019
VOLVO S902018, 2019
VOLVO XC602018, 2019
VOLVO XC902018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20213452021-06-02. Electrical
21V4140002021-06-02. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
21V2730002021-04-21. ELECTRICAL SYSTEM:SOFTWARE
18V8000002018-11-13. ELECTRICAL SYSTEM:SOFTWARE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
35526.1.82026-05-14. Service bulletin. This is a Technical Journal: Text plus 2 PDFs and 1 .PNG Oil Consumption test. Perform the test. Follow service procedure
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34295.9.02026-04-07. Service bulletin. This is a Technical Journal: Text plus 2 attachments 1 PDF and 1 PNG - High Voltage Battery repairs. Always repair the battery according to the methods in VIDA. This TJ is a guide to the kinds of repairs that can be done instead of a complete HV battery replacement.
 Parts, methods, and tools are now available to repair almost all faults within the High Voltage Battery.
367572026-02-05. Service bulletin. This is a Technical Journal: Text plus TJI 528994 - Charge Lid Hard to open/close. begin with replacing the actuator in the lock mechanism
369162025-08-18. Service bulletin. This is a Technical Journal: VCM Backup Battery Replacement with VCM-U105000. Replace the VCM Backup Battery and download the relevant Software.
357552025-07-09. Service bulletin. This is a Technical Journal: BEV and LR-PHEV SW Update for High Voltage Battery Balancer. The Balancer software must be upgraded to version OTG_192-411899-H00-029 or higher
357552025-07-09. Service bulletin. This is a Technical Journal: BEV and LR-PHEV SW Update for High Voltage Battery Balancer. The Balancer software must be upgraded to version OTG_192-411899-H00-029 or higher
369612025-04-09. Service bulletin. This is a Technical Journal: Improved 12V battery test in VIDA. Service:
 Don“t charge the battery before the test, jump start the vehicle if needed. Read out the vehicle with VIDA and start the test.
TJ 342952025-04-09. Service bulletin. This is a Technical Journal: High Voltage Battery repairs. Always repair the battery according to the methods in VIDA.
367572024-10-30. Service bulletin. This is a Technical Journal: Charge Lid Hard to open/close. begin with replacing the actuator in the lock mechanism
TJ36961.2.1-2024-08-072024-09-19. Other. This is a Technical Journal: Improved 12V battery test in VIDA. Improved 12V battery test in VIDA