2011 Can Am Commander 800 - The Ultimate Owner'S Guide To Maintenance

So, you’ve got your hands on a 2011 Can-Am Commander 800. You already know it’s a beast on the trails, a workhorse when you need it, and an absolute blast to drive. But you also know that keeping this powerful machine in peak condition takes a little more than just turning the key.

At FatBoysOffroad, we get it. You want to spend more time kicking up dust and less time scratching your head in the garage. That’s why we’ve put together the ultimate owner’s guide for your ride. We promise to walk you through everything you need to know, from basic upkeep to tackling common issues and even choosing the right upgrades.

In this comprehensive 2011 can am commander 800 guide, we’ll cover your essential maintenance checklist, diagnose common problems you might face, explore smart performance mods, and share best practices for dominating any terrain. Let’s get those knuckles greasy.

The Heart of the Beast: Understanding Your 2011 Can-Am Commander 800

Before we dive into the nuts and bolts, let’s appreciate what makes this machine special. The 2011 model year was a big deal for Can-Am, marking their entry into the sport-utility side-by-side market. It was designed to be a true “do-it-all” rig.

The core of this machine is the potent 799.9cc Rotax V-twin engine. This isn’t just any motor; it’s a fuel-injected, liquid-cooled powerhouse known for its snappy throttle response and reliable torque. It was a class leader in performance when it debuted.

Key Features and Benefits

Understanding the built-in advantages helps you appreciate and maintain your ride. The benefits of the 2011 can am commander 800 are clear once you get behind the wheel.

Dual-Level Cargo Box: This innovative design with a separate, water-resistant lower compartment is perfect for stashing tools, recovery gear, or a cooler.
Visco-Lok Front Differential: An automatic locking front diff that engages when it senses one wheel slipping. It’s great for seamless traction without needing to flip a switch.
Torsional Trailing Arm Independent (TTI) Rear Suspension: This design helps keep the tires planted on the ground over rough terrain, giving you a smoother, more controlled ride.
Driver-Focused Cockpit: With adjustable seats and a tilt steering wheel, it was designed for comfort on long trail days, a feature not always standard on early UTVs.

Your Essential 2011 Can-Am Commander 800 Maintenance Checklist

Consistent maintenance is the cheapest insurance you can buy for your Commander. A solid 2011 can am commander 800 care guide prevents small issues from becoming catastrophic failures on the trail. Here are the non-negotiables.

Pre-Ride Inspection (Every Single Time)

This five-minute check can save you hours of frustration. Think of it as your pre-flight checklist.

Tires & Wheels: Check for proper inflation (refer to the sidewall or your owner’s manual) and look for any cuts or damage. Grab each wheel and check for excessive play, which could indicate a bad wheel bearing.
Fluids: Pop the seat and check your engine oil level. Peek at the coolant reservoir to ensure it’s between the ‘Min’ and ‘Max’ lines. Check your brake fluid reservoir, too.
Controls & Brakes: Test your throttle for smooth operation. Squeeze the brake pedal; it should feel firm, not spongy.
Visual Check: Walk around the machine. Look for any loose bolts, damaged CV boots, or fluid leaks.

Routine Service Intervals

Stick to a schedule. Your owner’s manual is the ultimate authority, but here are some 2011 can am commander 800 best practices for the DIY mechanic.

Engine Oil & Filter (Every 25-50 hours): This is the lifeblood. Use a quality synthetic oil like XPS 5W-40 and a reliable filter (OEM or a reputable aftermarket brand like K&N). Pro Tip: Warm the engine for a few minutes before draining for a faster, more complete oil change.
Air Filter (Clean every ride, replace as needed): A dirty air filter chokes your engine. If you ride in dusty conditions, this is critical. Tap it out after each ride and consider a washable foam filter like a Twin Air or Uni Filter for long-term savings.
Differential & Gearbox Fluids (Every 100 hours): Don’t forget these! The front diff, rear diff, and gearbox all need their specific fluids changed. It’s an easy job with a fluid pump.
Spark Plugs (Every 100 hours): Cheap and easy to replace. Worn plugs can cause hard starting and poor performance. You’ll need a spark plug socket and a feeler gauge to check the gap on the new ones.

Diagnosing Common Problems with the 2011 Can-Am Commander 800

No machine is perfect. Over the years, owners have identified a few common quirks. Knowing what to look for is half the battle when dealing with common problems with the 2011 can am commander 800.

Clutch and Belt Issues

The CVT (Continuously Variable Transmission) system is robust but requires attention. A glazed or worn belt will cause slipping, loss of power, and a distinct burning rubber smell.

Symptoms: Jerky take-offs, high RPMs with low speed, inability to climb hills.
The Fix: Inspect your drive belt regularly. Look for frayed edges, missing cogs, or glazed sides. Always carry a spare belt and the tools to change it on the trail. We recommend an OEM Can-Am belt for the best reliability.

Front Differential Seal Leaks

A common issue is the pinion seal on the front differential weeping fluid. You’ll notice gear oil residue on the front of the diff or on your skid plate.

Symptoms: Visible gear oil leak from the front differential where the driveshaft enters.
The Fix: This is a moderately involved DIY job. You’ll need to remove the front driveshaft to access and replace the seal. Crucially, ensure you refill the differential with the correct 75W-90 gear oil after the repair.

Electrical Gremlins

Like many UTVs, the Commander can develop electrical issues, often related to wiring harnesses rubbing against the frame or corroded connections.

Symptoms: Intermittent “check engine” lights, gauges acting erratically, starting problems.
The Fix: Start with the basics. Ensure your battery terminals are clean and tight. Trace the main wiring harnesses, especially around the engine and under the dash, looking for any signs of rubbing or damage. Apply dielectric grease to major connectors to prevent moisture intrusion.

Smart Performance Mods: How to Upgrade Your 2011 Can-Am Commander 800

Stock is great, but custom is better. Knowing how to 2011 can am commander 800 performance can be enhanced transforms your ride. Focus on mods that match your riding style.

Tires and Wheels

This is the single best upgrade you can make. The right tires completely change the machine’s capability. For general trail riding, a good 6 or 8-ply all-terrain tire like the Maxxis Bighorn 2.0 or ITP Blackwater Evolution is a fantastic choice. If you’re into mud, you’ll need a more aggressive tread pattern.

Clutch Kit

If you’ve added larger tires or ride at high altitudes, a clutch kit is a must. It recalibrates your CVT with different weights and springs to optimize power delivery for your specific setup. A kit from a reputable brand like Dalton or EPI will restore lost acceleration and improve belt life.

Suspension Upgrades

While the stock suspension is decent, upgrading the shocks can provide a night-and-day difference in ride quality. A set of adjustable piggyback shocks from FOX or Elka will soak up bumps and whoops, reducing driver fatigue and increasing control at speed.

Sustainable & Eco-Friendly Riding: Responsible Ownership

Being a part of the off-road community means being a steward of the trails we love. A few simple steps can ensure we can enjoy them for years to come. This is a core part of sustainable 2011 can am commander 800 ownership.

Adopting eco-friendly 2011 can am commander 800 habits isn’t difficult. It’s about respect for the environment and other riders.

Stay on the Trail: Stick to designated routes. Going off-trail can cause erosion and damage sensitive habitats.
Tread Lightly: Avoid spinning your tires excessively and cross water obstacles at designated points slowly and carefully.
Pack It In, Pack It Out: Whatever you bring with you onto the trail, bring it back out. Leave the area cleaner than you found it.
Proper Fluid Disposal: When doing your own maintenance, collect all used fluids (oil, coolant, gear oil) in sealed containers and take them to your local auto parts store or recycling center. Never dump them on the ground or down a drain.

Frequently Asked Questions About the 2011 Can Am Commander 800

What type of oil does a 2011 Can-Am Commander 800 take?

The recommended engine oil is a 5W-40 synthetic oil designed for powersports engines. The BRP XPS brand is the OEM choice, but any high-quality synthetic 5W-40 from a reputable brand will work well.

What is the top speed of a 2011 Can-Am Commander 800?

A stock 2011 Commander 800 can typically reach speeds around 65-70 mph on a flat surface. However, factors like tire size, clutch condition, and added weight can affect the top speed.

Is the 2011 Can-Am Commander 800 a reliable machine?

Yes, when properly maintained, the Commander 800 is a very reliable UTV. The Rotax V-twin engine is known for its durability. Most issues that arise are related to wearable items like belts and bearings or can be prevented with routine inspections and service.

How do I check for fault codes without a scanner?

You can check for active fault codes by cycling the key. Turn the key to the ‘ON’ position (don’t start it), wait for the gauge cluster to cycle, and then press the override button three times quickly while holding the brake pedal. If there are active codes, they will display on the screen.

Your 2011 Can-Am Commander 800 is an incredibly capable and fun machine. By investing a little time in understanding its systems and performing regular maintenance, you’re not just fixing a vehicle—you’re ensuring countless future adventures.

This guide gives you the foundation, but the real expertise comes from getting out there, turning some wrenches, and getting to know your ride. So grab your tools, follow these 2011 can am commander 800 tips, and get ready for your next trip. Stay safe, ride smart, and we’ll see you on the trail!

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Thomas Corle

Founder & Automobile expert at FatBoysOffroad

Automobile expert and off-road enthusiast, sharing in-depth knowledge of vehicles, gear, and adventures. Helping readers make smart decisions and enjoy the thrill of off-roading safely and confidently.