Traxxas Speed Control Settings: Profiles, Calibration and LiPo Cutoff
Traxxas speed controls (XL-5, VXL-3s and similar) have three built-in profiles: Sport mode (100% forward, brake and reverse), Racing mode (100% forward and brake, no reverse) and Training mode (50% forward and 50% reverse, for beginners). You set them with the EZ-Set button, which also calibrates the ESC to the transmitter and switches the LiPo low-voltage detection on or off. On TQi radios with the Traxxas Link app, more settings can be changed from a phone.
By Kyle HilsonUpdated: October 20264 min read
The profiles
| Profile | Forward | Brake | Reverse | Use |
|---|---|---|---|---|
| Sport | 100% | 100% | 100% | General bashing |
| Racing | 100% | 100% | Off | Racing, where reverse isn’t allowed |
| Training | 50% | 100% | 50% | Beginners, kids |
Typical for XL-5 and VXL ESCs; check your manual, as some ESCs differ.
Selecting a profile
- Turn on the transmitter, then connect the battery to the car.
- With the ESC off, press and hold the EZ-Set button.
- Keep holding as the LED goes through its colour sequence; each colour/blink stage corresponds to a profile (described in your manual).
- Release when the LED shows the profile you want.
- The ESC confirms and is ready to drive.
The exact LED sequence differs between ESC models, so follow the manual for yours. Light codes are also explained in Traxxas ESC blinking red.
Calibrating to the transmitter
If the car creeps at neutral, doesn’t reach full throttle, or has weak brakes, recalibrate. Generally: switch on the transmitter, connect the battery, hold EZ-Set until the LED changes, then hold full throttle, full brake and neutral when the LED prompts. The ESC stores the throttle range. General ESC programming is covered in how to program an RC car ESC.
LiPo low-voltage detection
When running LiPo batteries, low-voltage detection must be on. It reduces power when cells get low so they aren’t damaged. It’s usually turned on or off with a specific EZ-Set sequence, and the LED shows its state at power-up. With NiMH packs, it can be turned off. Never run LiPos with detection off.
TQi radio and Link app
With a TQi transmitter, some cars allow adjusting throttle percentage, steering sensitivity and other settings from the radio or the Traxxas Link app over Bluetooth. Telemetry modules can show speed, temperature and battery voltage. Lowering the throttle percentage is a softer alternative to Training mode for younger drivers.
Tips
- Use Training mode for beginners and kids.
- Racing mode prevents accidental reverse on track.
- Recalibrate after changing transmitter settings.
- Keep low-voltage detection on with LiPo.
- If the LED flashes an error, check the battery and connections first.
Why settings matter
The same truck can feel tame or wild depending on the ESC profile and throttle limits. Choosing the right setting for the driver and the location makes driving more fun and saves parts. For racing, consistent throttle response matters more than raw power; for bashing, full power is the point but also the main source of broken parts.
Common setting problems
If the car moves slowly in reverse, it’s probably in Training mode. If there’s no reverse at all, it’s in Racing mode, or you need to brake, return to neutral and push again. If full throttle feels weak, recalibrate the ESC and check the transmitter’s throttle trim and end points. If the car cuts out early on LiPo, the battery may be worn or the motor overheating.
FAQ
How do I put my Traxxas in Training mode?
Hold EZ-Set from off until the LED indicates Training mode, then release.
Why won’t my Traxxas go in reverse?
It may be in Racing mode, or needs brake-neutral-reverse.
How do I calibrate a Traxxas ESC?
Use the EZ-Set calibration sequence with neutral, full throttle and full brake.
Should LiPo detection be on?
Always with LiPo batteries.
More on this topic: the complete RC Cars guide covers the basics behind this article.
About 20 years in RC. Mostly boats in the NAVIGA Mini Eco Expert class, with many self-made parts; also a King Motor Baja 5B, a home-built electric plane, home-built nitro planes he has flown, and an RC helicopter. More about SwellRC
