Power steps are motorized running boards that extend when a door opens and retract when it closes.
If you’ve seen a truck or SUV lower a step automatically as someone opens the door, you’ve watched power steps in action. These electric retractable running boards solve a simple problem: getting into a lifted vehicle without a climb, then tucking out of the way so they don’t catch on trail obstacles or reduce ground clearance off-road. The term also covers power side steps on newer trucks and the 12-volt entry steps on motorized RVs.
How Power Steps Work
Power steps are wired into the vehicle’s door-switch circuit. When a door opens, the system sends power to a motor and gearbox that drives the step down and out. Close the door and the step retracts — usually after a short delay of around 3 seconds, giving you time to clear the step.
AMP Research’s PowerStep line is the best-known example. It integrates automatic deployment and retraction with weatherproof motors and weathertight connectors, and it deploys from an extruded aluminum board with a textured, powder-coated finish. The linkage arms are high-strength aluminum alloy with a PTFE coating to keep motion smooth.
On Ram trucks, the factory option is called Power Side Steps. These are an “If Equipped” feature that offers two modes:
- Auto mode — steps deploy when any door opens, or when you activate them through the touchscreen.
- Store mode — steps stay retracted unless you manually select deploy from the Controls menu on the touchscreen.
Ram’s system also retracts the steps if vehicle speed exceeds 5 mph (8 km/h), or when retract is selected in Uconnect Settings. Understanding these modes matters: a step that seems “stuck” is often just in Store mode or reacting to the speed trigger.
Power Steps on RVs
Motorized RVs — Class A motorhomes, Class C motorhomes, and some Class B camper vans — use a similar idea with 12V DC electric entry steps. A door sensor triggers extension when the door opens and retraction when it closes, with a control switch and ignition override adding safety.
RV power steps are heavier-duty than truck units because they carry the full weight of entry. Regular lubrication of the pivot points and actuator is critical; a dry, seized step is the most common failure. Many troubleshooting guides start by recommending you clean and lubricate the mechanism before suspecting the motor.
Fixed Steps vs. Power Steps
The key distinction between fixed running boards and power steps is movement. A fixed side step is bolted on permanently and always hangs below the rocker panel. A power step sits flush when retracted and only drops when needed.
That retraction is the whole point if you off-road. With the steps tucked up, you keep full ground clearance for trail obstacles and approach angles. With fixed steps, that clearance is permanently reduced. The trade-off is complexity: power steps depend on sensors, electrical signals, and a motor, all of which can fail. Fixed steps are simpler and have nothing to break.
| Feature | Fixed Steps | Power Steps |
|---|---|---|
| Deployment | Always extended | Extends on door open |
| Ground clearance | Permanently reduced | Preserved when retracted |
| Power source | None | 12V vehicle electrical |
| Failure points | Few | Motor, sensors, wiring |
| Best for | SImplicity, lower cost | Off-road, lifted trucks |
Which Trucks Use Them, and What’s the Load Rating
Power steps fit most full-size trucks and SUVs, but fitment is vehicle-specific — a set built for a Ford F-150 won’t bolt onto a Chevy Silverado. Ram’s factory Power Side Steps are model-specific and depend on the trim and package. Aftermarket units from AMP Research are application-matched to specific years and models; always confirm compatibility before buying.
If you routinely carry heavy loads in and out, the XL version uses a wider board for more standing room.
The wiring side is straightforward for a shop installation but requires care: power steps tap into door-switch circuits and battery power, and a poor connection leads to intermittent deployment. Most owners have these installed professionally rather than as a driveway weekend job.
FAQs
Do power steps work when the truck is parked?
Yes. Power steps deploy whenever a door opens, regardless of whether the engine is running. The system draws from the vehicle’s 12V battery, and the steps retract when the door closes or after a short delay.
Can power steps be installed on any truck?
No. Power steps are application-specific. AMP Research and factory Ram units are built for particular makes, models, and years. Always verify fitment for your exact vehicle before purchasing — a universal claim usually means you’ll be drilling custom brackets.
Are power steps worth it for off-road use?
For off-roaders, retractable steps protect ground clearance that fixed boards sacrifice. The steps tuck fully under the vehicle when closed, so trail rocks and ruts won’t catch them. The trade-off is electrical complexity and a higher purchase price.
If you’re comparing options, our roundup of the best power steps for trucks breaks down top-rated models, fitment notes, and what each one costs.
References & Sources
- PowerStep. “PowerStep Official Site.” Product overview and standard features for power-retractable running boards.
- PowerStep. “Truck Access Systems.” Details on PowerStep and PowerStep XL models, load capacity, and construction.
- PowerStep. “About Our Company.” Company background and product line overview.