NHTSA ID Number: 10166745
Manufacturer Communication Number: 551097
TSB/Document Date: 2019-11-01
Summary
The valve stem sensors may become damaged during travel and potentially display an inaccurate reading to the operator.
TECHNICAL SERVICE BULLETIN
DEPARTMENT OF COMPLIANCE
VEHICLE SAFETY AND RECALL MANAGEMENT
BUILDING 11
423 N MAIN ST
MIDDLEBURY, INDIANA 46540-9218
Technical Service Bulletin: 55-1097
,
O
Integrity
O
Safety
O
Quality
O
Customer Service
October 28, 2019
This Notice applies to your vehicle VIN listed above.
Dear Forest River
Customer:
Forest River is alerting you to an issue involving certain 2020 – Dynamax Isata 3 and Isata 4 Class C recreational
vehicles. Please see the information below which describes the issue and provides you with details on the steps you
should take to have your vehicle repaired.
WHAT IS THE ISSUE?
The valve stem sensors may become damaged during travel.
OWNERS: WHAT SHOULD YOU DO?
Please contact your dealer immediately and request a service appointment to schedule the free repair. The valve stem
sensors will be removed and each wheel/tire combination will be upgraded to a wheel band sensor (see
attachment). The vehicle Owner is responsible for arranging to have the work completed. Please state you have been
notified by Forest River of the issue and provide the TSB number (located at the top of this page) to the dealership. It is
also helpful to give the dealership a copy of this letter when you take your vehicle in for the repair.
You may visit www.forestriverinc.com to search for dealer locations.
HOW LONG WILL THE REMEDY PROCESS TAKE?
The estimated time of repair is 1.00 hours. However, the dealership may need to keep your vehicle or schedule an
appointment with you for a later date to fit into their regular service schedule.
DEALERS: WHAT SHOULD YOU DO?
See the attached service instructions.
MAY FOREST RIVER ASSIST YOU FURTHER?
CONTACT
CUSTOMER SERVICE
PHONE
(574) 262-3474
Repair Codes:
Prior Authorization is required for verification purposes. Pictures are not required.
DEALER REPAIR CODES: Dealer Central
TSB
REPAIR
DESCRIPTION
NUMBER
CODE
REMOVE VALVE STEM TPMS SENSOR AND REPLACE WITH A
55-1097
10-551097
WHEEL BAND TPMS SENSOR PROVIDED BY DYNAMAX
OR
DEALER REPAIR CODES: Dealer Connect
TSB
REPAIR
DESCRIPTION
NUMBER
CODE
REMOVE VALVE STEM TPMS SENSOR AND REPLACE WITH
55-1097
SB-466-01--003289
A WHEEL BAND TPMS SENSOR PROVIDED BY DYNAMAX
ALLOWABLE
HOUR(S)
1.00 HRS.
ALLOWABLE
HOUR(S)
1.00 HRS.
Page 1 of 2
TECHNICAL SERVICE BULLETIN
WHAT IF YOU HAVE PREVIOUSLY PAID FOR REPAIRS TO YOUR VEHICLE FOR THIS PARTICULAR CONDITION?
If you have already paid for a repair that is within the scope of this service bulletin, you may be eligible for a refund of
previously paid repairs. Refunds will only be provided within the scope of this Technical Service Bulletin.
Please send the service invoice to the following address:
Dynamax
Forest River, Inc.
Attn: WARRANTY MANAGER
2745 Northland Dr.
Elkhart, IN 46514
Sincerely,
Forest River, Inc.
Engineer
Office of Corporate Compliance
Page 2 of 2
INDUSTRY LEADING
FACTORY-INSTALLED
TIRE PRESSURE ON YOUR RV!
MONITORING SYSTEM
3 Year Warranty • Lifetime Customer Support
MONITOR YOUR TIRES
FROM THE DRIVER’S SEAT
Real time tire temperature and pressure
readings are transmitted directly to our display.
Increased awareness brings increased
safety, tire life and fuel economy.
TST WIDE-SCREEN COLOR DISPLAY
Real-time alerts for Tire Pressure and Temperature
WHAT SETS TST TPMS KITS APART?
WHAT’S INSTALLED ON YOUR RV?
•
Industry’s First Full Color
Wide Screen Display
•
Factory Installed Repeater &
Internal Sensors
•
Monitor up to 4 Trailers and 115 Tires
•
Audible, Visual and Textual Alerts
•
3 Year Warranty
INTERNAL SENSOR
REPEATER
Securely mounted inside the
wheel/tire assembly
Boosts sensor signal to display
NEXT STEPS: PAIR AND ACTIVATE YOUR PRODUCT
MY RV CAME WITH
A DISPLAY
Please follow these instructions to get
paired, activated and on the road!:
Sensor Installation & Pairing
• Internal, banded sensors are mounted
on the wheel at the factory, 180º from the
valve stem.
• In some applications, your sensors may
be externally installed on the valve stem.
• See instructions on page 2 of this
brochure for pairing sensors to Display.
Activate your Product Warranty
• Go to www.TSTtruck.com/warranty
MY RV CAME WITHOUT
A DISPLAY
Contact an authorized TST Dealer to
purchase a TST TPMS Display.
• Return to the Dealer where you
purchased your RV.
• Email TST at [email protected] to
locate an authorized TST Dealer.
• Call (770) 889-9102 to speak with TST
Customer Support.
Sensor Installation & Pairing
• Internal, banded sensors are mounted
on the wheel at the factory, 180º from the
valve stem.
• In some applications, your sensors may
be externally installed on the valve stem.
• See instructions on page 2 of this
brochure for pairing sensors to Display.
Activate your Product Warranty
• Go to www.TSTtruck.com/warranty
I HAVE QUESTIONS OR
NEED SUPPORT
WEB: www.TSTtruck.com/product-support
EMAIL: [email protected]
PHONE: (770) 889-9102
HOURS: Monday-Friday 9am-8pm,
Saturday 9am-2pm (EST)
PROGRAMMING YOUR TST TIRE PRESSURE MONITORING SYSTEM
Power ON the display. The ON/OFF switch is on the right side of the
display.
PROGRAM SENSORS TO DISPLAY
Press and hold SET until it beeps. Display is now in
programming mode.
The words HI
PRESSURE SET will
Wheel
appear at the bottom of
the screen.
Press
5 times to scroll
through the parameters Sensor
until LEARN ID appears.
1. Press and release
SET . The first tire on
the display will blink.
Press
to move to the
Sensor is installed 180º
desired tire position.
from the tire valve stem
Press and release SET
again and FFF FFF will blink. Hold the Display next to the
sensor for that tire position (see diagram for Internal
Sensor position). Press and release GO . ID LF will appear
on the screen, then the 6 digit sensor ID code will appear.
Press and release SET to save the code to that tire position.
When coded correctly, a six (6) digit unique code will be
displayed (You may record this code by wheel position using
the Sensor Code Diagram included with this guide).
2. Use
to move to the next tire position to be programmed.
Repeat Step 2 until all sensors have been programmed.
3. When complete, press and release BACK twice to return to
the main screen (the sensors will begin reading 0 pressure and
an alarm will sound. This is part of the normal setup process.
Press
to silence the alarm while continuing the setup).
SET THE FOLLOWING BEFORE PAIRING SENSORS:
PRESSURE UNITS
Note: Default setting is PSI.
To change the Pressure Unit, press and hold SET until it beeps.
Press
three (3) times and SET will appear at the bottom of the
screen and BAR and PSI will be blinking on the screen. Press and
release SET again, then use
to select BAR or PSI. Press SET
again to save. Press and release BACK to go to the Main Screen.
TEMPERATURE UNITS
Note: Default setting is °F.
To change the Temperature Unit, press and hold SET until it
beeps. Press
four (4) times and SET will appear at the bottom
of the screen and °F and °C will be blinking on the screen.
Press and release SET again, then use
to select °F or °C.
Press and release SET again to save. Press and release BACK
2 times to go to the Main Screen.
LOW PRESSURE ALARM
Note: If the vehicle recommended tire pressure is below 100
PSI, the Low Pressure Alarm must be set first, then set the High
Pressure Alarm. The High Pressure Alarm cannot go below the
default Low Pressure Alarm of 100 PSI until the Low Pressure
Alarm is reduced.
To set up the Low Pressure Alarm, press and hold SET until it
beeps. Press
once and LOW PRESSURE SET will appear.
Press and release SET , then press and release GO to select
the appropriate axle. Press
or
to adjust the Low Pressure
Alarm 10% below your normal tire pressure for that axle. Press
and release GO to move to the next axle. For a trailer setup, see
below.*
HIGH PRESSURE ALARM
To set up the High Pressure Alarm, press and hold SET until it
beeps.
HI PRESSURE SET will appear at the bottom of the screen.
Press and release SET , then press and release GO to select the
appropriate axle. Press
or
to adjust the High Pressure Alarm
to 25% over your normal tire pressure for that axle. Press and
release GO to move to the next axle. When finished setting each
axle, press and release SET to save. Press and release BACK 2
times to go to the Main Screen. For a trailer setup, see below.*
*Trailer setup - Up to four trailers can be configured to a single
display. When you get to the trailer section of the display, all the
trailer axles on that section will flash in groups of three. You can set
the High & Low Pressure Alarms for that group. Press and release
GO to move to the next group or the next trailer. The trailer number
will appear in the middle of the screen (#1 to #4). Press and release
SET to save settings. Press and release BACK 2 times to return
to the Main Screen.
REPEATER INSTALLATION
1.
2.
The repeater is used to boost the sensor signal. A repeater is
factory-installed with this system.
The repeater is wired to a 12V source that will be constant
while driving. The red light on the repeater will illuminate
“constant or blinking” (the repeater will illuminate with a
constant light when power is applied, once the display is
on and the sensors are reporting. The light will blink when
transmitting information to the display).
No additional setup is needed for the repeater.
EXTERNAL CAP SENSOR INSTALLATION After Programming
1.
2.
Hand-tighten the corresponding sensor on the valve stem for
that tire position until the air stops leaking, then tighten 1/4 turn
further.
DO NOT OVER TIGHTEN!
HIGH TEMPERATURE ALARM
Note: Default setting is 158°F (70º C).
We recommend that you do not change the temperature
alarm setting.
To set the High Temperature Alarm, press and hold SET until
it beeps. Press
twice and HI TEMP SET will appear. Press
and release SET again, then use
or
to adjust the High
Temperature Alarm, if desired. Press and release SET to save.
Press and release BACK 2 times to go to the Main Screen.
FREQUENTLY ASKED QUESTIONS
WHAT DO I DO IF MY SENSOR IS NOT READING?
1.
If your sensor is not transmitting data to the display, try recoding the sensor to the same tire position using the “PROGRAM
SENSORS TO DISPLAY” instructions on the previous page.
2.
If after repeated attempts, and you think it may be a sensor issue please contact Customer Support using the information below.
WHY DOES MY DISPLAY SOMETIMES “DROP” SENSOR DATA FROM A TIRE POSITION?
Be aware that an indoor/outdoor thermometer with an external temperature sensor may interfere with the TST TPMS. Temporarily remove
all the batteries in the temperature display AND exterior temperature sensor and see if the problem is corrected. A thermometer with a
higher frequency (915 MHZ) may be required. Atomic clocks can also cause interference with the sensors.
WHY DOES MY DISPLAY SOMETIMES ALARM WHILE I AM SITTING STILL IN THE EVENING?
As night approaches and outdoor temperatures decrease, your tire pressures may drop below the parameters you have set, thus causing
an out of spec alarm. When temperatures drop, turn your display off overnight. As the air temperature rises the next day or as you start
driving, the tires will also heat up and come back into your parameters.
WHY CAN’T I SET A LOWER PRESSURE THAN 100 PSI FOR THE HIGH OR LOW PRESSURE ALARM?
The high-pressure alarm cannot go lower than the low-pressure alarm setting. If your tire pressure settings are below 100 PSI, you must
first set the low-pressure alarm settings and then set the axles’ high-pressure settings. When done, be sure to press and release the
“SET” button to save all the parameter settings.
WHAT CONDITIONS CAUSE THE DISPLAY TO ALARM?
The display will alarm for the following reasons:
1.
A rapid leak of 2 psi per minute or greater (FAST LEAK at bottom of screen).
2.
A low sensor battery (upper left battery icon flashes).
3.
An overheating tire, increasing the temperature (HIGH TEMP at bottom of screen).
4.
A high or low-pressure reading (be sure your parameters are set correctly).
In every instance, the tire Pressure and Temperature numbers will also flash when the tire with the problem blinks.
HOW DO I REMOVE MY TRAILER FROM THE DISPLAY SCREEN WHEN I AM NOT USING IT?
To electronically disconnect the trailer tire icons from the screen:
1.
Momentarily press the GO and
2.
The trailer section on the display will disappear.
buttons.
3.
To electronically reconnect the trailer section, momentarily press the GO and
buttons again.
HOW DO I REMOVE MY TOWING VEHICLE FROM THE DISPLAY SCREEN WHEN IT IS PARKED?
To electronically disconnect the towing vehicle tire icons from the screen:
1.
Momentarily press and hold the GO and
buttons.
2.
The towing vehicle section on the display will disappear.
3.
To electronically reconnect the towing vehicle section, momentarily press the GO and
buttons again.
HOW DO I REMOVE AN UNWANTED TIRE ICON FROM THE DISPLAY?
To delete a single sensor code press and hold SET until it beeps (approx. 3 seconds). Press
and scroll through the parameters until
LEARN ID appears. Press and release SET . Use
or
to scroll to the tire you wish to remove. Press and release SET to select
that tire. It will start flashing. Press and hold BACK for 3 seconds. You will hear 3 beeps. The code will change to FFF FFF which will be
flashing. Press and release SET . The flashing will stop and the ID code will be deleted. To cancel the function, press and release BACK
2 times.
HOW DO I DELETE ALL TIRE CODES FOR MY DISPLAY?
To delete all of the tire codes when in the LEARN ID mode: Press and hold the BACK button until you hear 6 beeps. DEL ALL. will
appear on the screen. Press and release SET . You will hear one beep. FFF FFF will appear. ALL ID codes are deleted. To return to the
main screen, press and release BACK 2 times.
CUSTOMER SUPPORT INFORMATION:
WEB: www.TSTtruck.com/product-support
EMAIL: [email protected]
PHONE: (770) 889-9102
HOURS: Monday-Friday 9am-8pm,
Saturday 9am-2pm (EST)
2
S1
SENSOR CODE DIAGRAM
After pairing your sensors, you may record their 6 digit code (or sensor number) by wheel position
using the RV/Tow Vehicle and Trailer diagrams below.
This allows you to know which sensor is programmed to which tire position at a glance.
S2
S1
S2
S1
RV or Tow Vehicle
T
S2
S1
T
T
T
CUSTOMER SUPPORT INFORMATION:
WEB: www.TSTtruck.com/product-support
EMAIL: [email protected]
PHONE: (770) 889-9102
HOURS: Monday-Friday 9am-8pm,
Saturday 9am-2pm (EST)
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TSB/Document ID: 551097
Replacement Service Bulletin Number:
MFR Communication Date: 2019-10-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
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