AI Damage2014 Keystone Montana-Mountaineer: common problems
Owners of the 2014 Keystone Montana-Mountaineer filed 5 complaints with NHTSA, most often about structure and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 5
What fails most often
- 1 Structure 60% of all complaints
- 2 Engine and cooling 20% of all complaints
- 3 Service brakes 20% of all complaints
- 4 Wheels 20% of all complaints
- Structure: 3 complaints (60% of all).
- Engine and cooling: 1 complaints (20% of all).
- Service brakes: 1 complaints (20% of all).
- Wheels: 1 complaints (20% of all).
Symptoms owners describe
How many of the 5 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) |
|---|---|---|---|
| Structure | 3 | 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.
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.
Comparison
By complaint count this model year ranks 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).
On average one model year of the Montana-Mountaineer has 3 complaints (6 years in the data). This year has 5, above average.
What to check before buying
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Wheels. Wheel runout, cracks, signs of a wheel strike.
Other years of this model
Questions and answers
What are the most common problems with the 2014 Keystone Montana-Mountaineer?
Owner complaints to NHTSA most often mention: structure, engine and cooling, service brakes. Total complaints: 5. The most frequent symptoms in complaint texts: A/C or heater (20%), rust, corrosion (20%), stalls while driving (20%).
How many service bulletins (TSB) were issued for the 2014 Keystone Montana-Mountaineer?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2014 Keystone Montana-Mountaineer from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2014 models
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.