Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 19 bulletins for GRAND DESIGN
December TSB 3
Jan 8, 2024
350000 EQUIPMENT
Attic Vents and solar ports on affected units may prematurely crack allowing for water infiltration. TSB 23-003. Issued December 29th, 2023. PDF attached .
TSB 23-001
Jan 23, 2023
110000 ELECTRICAL SYSTEM
Wiring to the remote start/stop switch of the generator at the GenSet panel is wired incorrectly. During use, the generator must be unplugged to shut down. This is ONLY on Solitude units with factory installed generator package. Gen prep no
TSB 22-004
Nov 21, 2022
350000 EQUIPMENT
A crack may occur in the existing skylight. As a result, there is a potential for water to intrude.
TSB 22-003
Sep 14, 2022
160000 STRUCTURE
The rear upper deck on Solitude ST390RK models produced prior to June 6, 2022 may not be properly supported. As a result, the rear upper deck floor may sag slightly at the sidewalls. Remedy: The remedy includes the use of additional fasten
TSB 22-002
Aug 11, 2022
110000 ELECTRICAL SYSTEM
WFCO 2000w Inverters Hot/Neutral Reversed Wiring : Grand Design Momentum units outfitted with solar panels and produced from June 6, 2022 to August 5th, 2022 may be equipped with a WFCO 2000w Inverter wired incorrectly with the hot/neutral
TSB 22-001
Apr 5, 2022
350000 EQUIPMENT
Newly designed lippert upper deck leaves space between pin box and bulkhead. This creates the potential for water intrusion from road spray. The remedy is to install a filler plate (part number #110460)
TSB21-002
Jun 9, 2021
350000 EQUIPMENT
Gray Tank has an uncapped plumbing hole on top of tank on ST346FLS select units.
TSB21-001
Jun 9, 2021
110000 ELECTRICAL SYSTEM
TPMS System was wired to an inactive line in the solar prep harness and therefore will not have a direct power supply.
CSP 910019
Apr 1, 2020
350000 EQUIPMENT
Customer Satisfaction Program released to have a protective heat shield installed behind convection microwave on units identified below to address concerns with excessive heat buildup.
TSB19-005
Oct 8, 2019
350000 EQUIPMENT
On the roll-over sofa, the sofa back stop bolt may be missing. As a result, when the sofa back is rolled over to make a bed it may not lay flat.
TSB 19-004
Jul 9, 2019
110000 ELECTRICAL SYSTEM
On certain Momentum Travel Trailer models ( 25G, 28G & 29G) the EMS power shed for the bedroom AC and Water Heater is wired incorrectly. The hot wire is not routed through the current sensor. As a result, the system will not shed appliance
TSB 19-003
May 8, 2019
350000 EQUIPMENT
On certain Transcend models (187MK, 261BH & 31RLS) the air deflection baffle is missing at the top refrigerator vent. As a result, the refrigerator may not cool properly.
TSB 19-002
Jan 25, 2019
110000 ELECTRICAL SYSTEM
The air conditioner (AC) unit may be wired incorrectly at the control module preventing the cooling pump from activating.
TSB 19-001
Jan 16, 2019
091200 FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
The fuel gauges may be wired incorrectly. As a result, the interior fuel gauge does not function properly.
TSB 17-001
Apr 3, 2017
162000 STRUCTURE:BODY
The #10 screws used to fasten the vertical column of the Schwintek In Wall system to the may have been over torqued, causing a loss of hold, resulting in loose and/or broken screwheads. As a result, columns may pull away from the sidewall.
TSB 16-005
Sep 16, 2016
190000 TIRES
Flex-Guard strap under the dinette slide my be within the 4" tire clearance requirement with the room closed. Procedure is to convert from the Flex-Guard strap configuration to a spring configuration which assures a minumum clearance of 4"
TSB 16-004
Aug 26, 2016
353700 EQUIPMENT:ELECTRICAL:ACCESSORY GENERATOR
Hour meter not visable on display panel on generator icon
TSB 16-001
Apr 4, 2016
160000 STRUCTURE
IN 2016, MERCEDES-BENZ RELEASED A NEW 2-PC FLANGE NUT WHEEL FASTENER (MERCEDES-BENZ P/N A 000 990 53 53) WHICH IS TALLER AND HAS A LARGER WASHER DIAMETER THAN THE PREVIOUS 2-PC FLANGE NUT (MERCEDES-BENZ P/N A 000 401 18 72) USED FOR MODEL Y
SB-TSB15-002
Aug 21, 2015
350000 EQUIPMENT
GRAND DESIGN RECREATIONAL VEHICLES: RAMP DOOR BOLTS TO REAR BUMPER MAY LOOSEN OVER TIME. *CN