Just replaced brakes, rotors tie rod ends, and it makes a rubbing sound when I make a hard left and the abs light and brake light keep coming on and sometimes feels like I have no brakes.

SOURCE: real right turn signal light - Pontiac Montana SV6 2005

If the 2005 Montana is similar to the 2001 Montana, I have a solution. First you'll need a hexagonal wrench (the 6-sided L-shaped wrench). The tail light assembly is held on by two screws. You'll need the hexagonal wrench to remove them, because a normal screwdriver won't do it. I also had to use a conventional adjustable wrench to get the leverage to turn the hexagonal wrench, because the screws were in there pretty tight. Once you remove the two screws, the whole tail light assembly should come off. Mine required a little force and I had to play with it a bit, but it came off without a lot of work. There will be one set of wires that connects the tail light assembly to the rest of the minivan--try not to damage that set of wires. Once you get the tail light assembly off, you'll have to take apart the assembly that actually holds the lights. No tools should be required. It's held on by four plastic catches. Just undo the catches (easier said than done, but still not too tough) and it comes apart. Then you can pop out the old light and pop in the new light. Then re-assemble. For me, it went back together much easier than it came apart.

SOURCE: 2005 Pontiac SV6 Montana key fob unlocks doors but will not lock

For the sliding doors you need to clean the contacts, there are 6 or 8 on both sides, just wipe them clean as they are probably covered in oil/grease/grime.

SOURCE: service traction light comes on abs off and brake light come on on the dash

I had the same problem. I took off the tires and look at the wires, and both of the wires to the hub were broke. 10 min and some tape and problem was fixed.

SOURCE: clunking from front end

CHECK FRONT STABILIZER LINK KITS FOR PLAY.
ONE ON EACH SIDE ATTACHED TO STRUTS.

SOURCE: 2000 montana brakes shutter and the abs light and

i had the same problem on my 2000 montana, used a scanner to check for abs code and found right front sensor throwing code, checked sensor and found ok, checked harness from sensor to connection under hood and found wiring circut at the plastic clip where harness hooks to sensor was bad, replaced harness from connector to sensor and problem went away