AI DamageKeystone Montana-Mountaineer: problems, complaints, bulletins
Summary for the Keystone Montana-Mountaineer across 6 model years: 17 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Tires 41% of all complaints
- 2 Equipment 29% of all complaints
- 3 Structure 18% of all complaints
- 4 Electrical system 6% of all complaints
- 5 Engine and cooling 6% of all complaints
- 6 Service brakes 6% of all complaints
- 7 Wheels 6% of all complaints
- Tires: 7 complaints (41% of all).
- Equipment: 5 complaints (29% of all).
- Structure: 3 complaints (18% of all).
- Electrical system: 1 complaints (6% of all).
- Engine and cooling: 1 complaints (6% of all).
Symptoms owners describe
How many of the 17 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Tires | 7 | 0 | 0 |
| Equipment | 5 | 0 | 0 |
| Structure | 3 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Wheels | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
I've had 2 blow outs with hirun tires in the last 200 miles. The tires don't have 2,000 miles on them and are around 2 years old. The tread is separating. It has caused significant damage too the trailer.
December 26, 2013, my wife and I stopped at a rest stop in van horn, texas for a few hours rest. Our rv was not manufactured with a furnace air return duct. We had just bought a new dodge 3500 with a cummins diesel engine having all the bells & whistles (first for us).
Following instructions in rv owners manual I checked lug nut torque at selling dealer. Torque was too high. Later service technician replaced the four wheel hubs. Selling dealer service manager refused to replace bearing cups and bearings in matched sets. I called dexter asking help.
I suspected some possible corrosion. (excerpt). Our first observation was the aluminum welding of the floor framework in which we could see some of the welding would not be acceptable to visual inspection to more than one welding code......one example.....photo pages #1 thru 7 show welds that would not pass a visual…
Nfpa 7.2.4 shower stalls. In no case shall the depth of a shower receptor be less than 2 in. (51 mm) or than 9 in. (229 mm). Measured from the top of the finished dam or threshold to the top of the drain. Shower in my rv measures 10 1/2" technical mgr. Asks what does that hurt?
Visiting in houston, tx. 2013 christmas holidays I was cleaning inside rv mountaineers basement. I noticed one of the (that was in vision) aluminum floor joists was sawed part of the way into. This floor joists that was sawed part of the way into is next to a vertical plumbing pipe.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Tires. Tire age by DOT code, bulges, wear pattern.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.