Keystone COUGAR problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
149 owner complaints analyzed
48 distinct recall campaigns
4,500 mi median reported failure mileage
Scope: 1999 to 2026 model years. Data snapshot: . 61 complaints include usable failure mileage.
Most common problems
Tires is the most frequently named component, appearing in 37 of 149 complaints (24.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 11 | 7.4% |
| Electrical and battery issues | 11 | 7.4% |
| Transmission and shifting | 2 | 1.3% |
| Engine operation | 1 | 0.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Tires | 37 |
| Structure | 19 |
| Equipment:Recreational Vehicle/Trailer | 18 |
| Structure:Body | 15 |
| Suspension | 14 |
| Unknown Or Other | 11 |
| Electrical System | 10 |
| Wheels | 9 |
Tires: 37; Structure: 19; Equipment:Recreational Vehicle/Trailer: 18; Structure:Body: 15; Suspension: 14; Unknown Or Other: 11; Electrical System: 10; Wheels: 9
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 60 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 60; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (60). 88 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 12 |
| 2006 | 10 |
| 2007 | 16 |
| 2008 | 10 |
| 2009 | 9 |
| 2010 | 5 |
| 2011 | 9 |
| 2012 | 10 |
| 2013 | 7 |
| 2014 | 4 |
| 2015 | 5 |
| 2016 | 11 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 3 |
2002: 1; 2004: 1; 2005: 12; 2006: 10; 2007: 16; 2008: 10; 2009: 9; 2010: 5; 2011: 9; 2012: 10; 2013: 7; 2014: 4; 2015: 5; 2016: 11; 2017: 7; 2018: 4; 2019: 4; 2020: 1; 2021: 5; 2022: 9; 2023: 1; 2024: 3; 2025: 2; 2026: 3
Pattern summary
Tires leads the component reports. Braking behavior appears in 11 complaint narratives. Electrical and battery issues appears in 11 complaint narratives. Transmission and shifting appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10238925 · 2008-08-19 (August 19, 2008)
TL*THE CONTACT OWNS A 2008 KEYSTONE COUGAR. WHILE DRIVING AT AN UNKNOWN SPEED, THE BRAKES FAILED. THE CONTACT EXAMINED THE VEHICLE AND NOTICED THAT THE BRAKE WIRE WAS PINCHED BY THE DUMP VALVE SHAFTS. THE DEALER STATED THAT THE BRAKE WIRES NEEDED TO BE REPLACED AND SECURED. THE FAILURE MILEAGE WAS 10,000.UPDATE 09/10/08 *CW THE CONSUMER STATED THE WIRES WERE LAYING LOOSE AND NOT SECURED IN THE AREA OF THE DUMP VALVES. UPDATED 09/16/08. *JB
Owner-reported narrative. 10,000 miles reported. Look up ODI 10238925 at NHTSA ↗
Owner report 10277504 · 2009-07-20 (July 20, 2009)
TL*THE CONTACT OWNS A 2008 KEYSTONE COUGAR FIFTH WHEEL. WHILE DRIVING 55 MPH, THE TWO PASSENGER SIDE TIRES BLEW OUT. THE CONTACT BELIEVES THAT THE WEIGHT OF THE FIFTH WHEEL CAUSED THE TIRES TO FAIL. HE STATED THAT THE MANUFACTURER PUT CHEAP WHEELS ON THE VEHICLE IN ORDER TO SAVE MONEY. THE FAILURE MILEAGE WAS NOT APPLICABLE. UPDATED 08/31/09 *BF THE BRAKES ON THE RV WERE EXTREMELY LOUD EVERYTIME THEY WERE APPLIED. UPDATED 09/09/09. JB
Owner-reported narrative. 5,000 miles reported. Look up ODI 10277504 at NHTSA ↗
Owner report 10179243 · 2007-01-20 (January 20, 2007)
WHILE OPERATION OF THE LIPPERT SLIDEOUT IN OUR '04 KEYSTONE 285EFS FIFTH WHEEL, THE SLIDE STOPPED. UPON INVESTIGATION (FOLLOWING WIRES, CHECKING FUSE, CONTACTS, ETC.) I FOUND BURNT OUT AND MELTED WIRE NUTS DIRECTLY BEHIND THE FUSE PANEL LYING IN SAWDUST. THE WIRES ARE 10 GAUGE (30 AMP). ONE STRIPPED END WAS AN INCH IN LENGTH WHILE THE OTHER WAS LESS THAN 1/16". THESE WIRES PROVIDE FULL 12 VOLT AMPERAGE TO OPERATE THE SLIDEOUT. THIS WAY OF STRIPPING WIRES FOR WIRE NUT ATTACHMENT IS NOT PRUDENT FOR A SAFE ELECTRICAL CONNECTION AND IS EXTREMELY D…
Owner-reported narrative. Look up ODI 10179243 at NHTSA ↗
Owner report 10200186 · 2007-08-20 (August 20, 2007)
I PURCHASED A 2004 COUGAR 5TH WHEEL MADE BY KEYSTONE RV IN APRIL OF 2005 FROM A LOCAL DEALER. SINCE THEN WE HAVE TAKEN TWO LONG TRIPS (OVER 500 MILES) AND EACH TIME HAVE HAD MULTIPLE BLOW-OUTS (2 ON THE FIRST TRIP AND 3 THIS LAST TRIP). THUS, I HAVE HAD TO REPLACE ALL FIVE TIRES THAT CAME WITH THE UNIT WITH BRAND-NEW TIRES. ALL OF THE BLOW-OUTS HAVE OCCURRED ON PUBLIC HIGHWAYS DOING 60MPH AND THERE WAS NO WARNING NOR COULD I FEEL THAT A TIRE HAD GONE. FORTUNATELY EITHER I NOTICED SMOKE IN MY SIDE MIRRORS OR A PASSERBY HAS ALERTED ME TO THE …
Owner-reported narrative. Look up ODI 10200186 at NHTSA ↗
Owner report 10484902 · 2012-11-16 (November 16, 2012)
TL* THE CONTACT OWNS A 2011 KEYSTONE COUGAR RV. THE CONTACT STATED THAT THE FURNACE FUEL LINE WAS LEAKING. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO REPLACED THE FUEL LINE. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 4,000. UPDATED 01/02/2013*LJ THE CONSUMER STATED THE LINE WAS RAN OVER THE FRAME, UNDER FLOOR, AND WITH BODY SHIFTING THE COPPER 3/8S LINE WAS CRUSHED AND CRACKED. THIS ALLOWED 17 GALS OF FUEL VAPORS TO LEAK INTO THE CAMPER LIVING AREA, UNDER BELLY, AND THE…
Owner-reported narrative. 4,000 miles reported. Look up ODI 10484902 at NHTSA ↗
Owner report 11430579 · 2021-08-26 (August 26, 2021)
The contact owns a 2020 Keystone Cougar. The contact stated while the RV was stationary, the rear motor turned on independently and fractured the gears. The contact took the RV to an independent mechanic, where it was diagnosed with needing the gearbox to be replaced. The RV was not repaired but was pending repairs. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 19V689000 (Electrical System) however, the VIN was not included. A dealer was not contacted. The contact attempted to reach the manufacturer by email…
Owner-reported narrative. 100 miles reported. Look up ODI 11430579 at NHTSA ↗
Owner report 10083869 · 2004-07-23 (July 23, 2004)
POSSIBLE ENGINE STALLING IN 1999 THROUGH 2002 MERCURY COUGAR.*MR
Owner-reported narrative. Look up ODI 10083869 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2010 | 4 |
| 2011 | 7 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 4 |
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 0 |
2010: 4; 2011: 7; 2012: 2; 2013: 2; 2014: 4; 2015: 3; 2016: 2; 2017: 7; 2018: 4; 2019: 8; 2020: 8; 2021: 7; 2022: 6; 2023: 1; 2024: 1; 2025: 1; 2026: 0
Year-by-year records
| Model year | Complaints | Recalls | Change in recalls |
|---|---|---|---|
| 1999 | 0 | 1 | Not available |
| 2000 | 1 | 2 | +1 |
| 2001 | 3 | 1 | -1 |
| 2002 | 6 | 1 | 0 |
| 2003 | 6 | 2 | +1 |
| 2004 | 26 | 3 | +1 |
| 2005 | 7 | 3 | 0 |
| 2006 | 6 | 4 | +1 |
| 2007 | 9 | 6 | +2 |
| 2008 | 9 | 3 | -3 |
| 2009 | 4 | 3 | 0 |
| 2010 | 10 | 4 | +1 |
| 2011 | 9 | 7 | +3 |
| 2012 | 5 | 2 | -5 |
| 2013 | 6 | 2 | 0 |
| 2014 | 4 | 4 | +2 |
| 2015 | 5 | 3 | -1 |
| 2016 | 5 | 2 | -1 |
| 2017 | 3 | 7 | +5 |
| 2018 | 4 | 4 | -3 |
| 2019 | 9 | 8 | +4 |
| 2020 | 3 | 8 | 0 |
| 2021 | 4 | 7 | -1 |
| 2022 | 3 | 6 | -1 |
| 2023 | 1 | 1 | -5 |
| 2024 | 0 | 1 | 0 |
| 2025 | 0 | 1 | 0 |
| 2026 | 1 | 0 | -1 |