TRX-4 79 K5 Blazer Manual
TRX-4 
• 
15
5
RADIO SYSTEM RULES
• 
Always turn your TQi transmitter on first and off last. This procedure 
will help to prevent your model from receiving stray signals from 
another transmitter, or other source, and running out of control. Your 
model has electronic fail-safes to prevent this type of malfunction, but 
the first, best defense against a runaway model is to always turn the 
transmitter on first and off last.
• Always use new batteries for the radio system. Weak batteries will 
limit the radio signal between the receiver and the transmitter. Loss 
of the radio signal can cause you to lose control of your model.
• In order for the transmitter and receiver to bind to one another, 
the receiver in the model must be turned on within 20 seconds 
of turning on the transmitter. The transmitter LED will flash fast 
red, indicating a failure to link. If you miss it, simply turn off the 
transmitter and start over.
• Always turn on the transmitter before plugging in the battery.
RADIO SYSTEM BASIC ADJUSTMENTS
Throttle Neutral Adjustment 
The throttle neutral adjustment is located on the 
transmitter face and controls the forward/reverse 
travel of the throttle trigger. Change the adjustment 
by pressing the button and sliding it to the desired 
position. There are two settings available:
50/50: Allows equal travel for both acceleration and reverse.
70/30: Allows more throttle travel (70%) and less reverse travel (30%).
Note: We strongly recommend to leave this control in its factory 
location until you become familiar with all the adjustments and 
capabilities of your model. To change the throttle neutral adjust position, 
turn the transmitter off before adjusting the neutral position. You will 
need to reprogram your electronic speed control to recognize the 
70/30 setting. 
The default 50/50 setting is recommended. 
Turn to XL-5 HV 
Setup Programming on page 18 for instructions.
Steering Trim
Turn the steering trim knob to precisely set 
the steering neutral point.  To adjust, drive 
the vehicle forward slowly while “steering” 
with the trim knob until the vehicle travels 
in a straight line with no steering input.
Multi-Function Knob
The Multi-Function knob can be programmed to control a variety of 
functions. From the factory, the Multi-Function knob controls Cruise 
Control on the TRX-4. For more detail on the cruise control, refer to 
page 17.
TRAXXAS TQ
i
 RADIO SYSTEM
Stop immediately at the first 
sign of weak batteries. Never 
turn the transmitter off when 
the battery pack is plugged 
in. The model could run out 
of control.
RADIO SYSTEM CONTROLS
Remember, always turn the 
TQi transmitter on first and 
off last to avoid damage to 
your model. 
Forward
Neutral 
(full brake in 
Crawl Mode)
Brake/Reverse 
(Immediate Reverse 
in Crawl Mode) 
High Gear
Unlock
Diffs
Lock 
Front 
Diff
Lock 
Both 
Diffs
Low Gear
T
U
R
N
R
I
G
H
T
T
U
R
N
L
E
F
T
Always turn your
transmitter on first.
Turn on the model.
1
2
Plug in the battery.
3










