Service advancement warning came on the main gauge display screen while I was driving 62 MPH with cruise control set. Vehicle is a 2021 jayco greyhawk 31f class c motorhome on ford e450 chassis with 7.3l gas v-8 and 6-speed automatic transmission. Cruise control stopped working and would not come back on. Hill start assist disabled message came on after I hit "ok" for the service advancement warning. Vehicle became very difficult to control with moderate crosswind. It would sway side to side and moved all over in the lane as I steered and countersteered. Vehicle power also seemed to decrease as it would only go about 52 MPH in 5th gear and would downshift to 4th in order to go from 45 up to about 55. It was terrifying to go that fast when a gust of wind hit. We pulled into a truck stop, turned off motor and let it sit a couple minutes. It restarted easily but even stationary in park and in drive (stopped) the service advancement warning came back on and the cruise control would not power on. Shut motor off and disconnected negative battery cable for about 20 minutes, hooked battery up and vehicle started with no warning lights. Drove another 20ish miles with no issues, then turned on cruise control and set it at 55. After 2 minutes the c/c shut off again, service activator warning came on, vehicle hard to control with crosswind and decreased engine power. Pulled to shoulder, tried to restart and same issue as at truck stop. Disconnected battery again 20 minutes, hooked back up and drove with no issues for 6 hrs (and 1 fuel stop) with c/c remaining off. Next day issue repeated itself: c/c turned off after about 2 minutes, service advancement light etc. Disconnect battery 20 min, restart and drove without turning on c/c for 7 hrs (w/ 2 stops) no issues. Full power and advancement electronic stability control work fine when service advancement warning is not on.*dt*jb*dt*dt*dt*jb*jb*jb
The worst 2021 Jayco Greyhawk problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Acceleration1
- Suspension1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration1
- Suspension1
Recalls 3
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings
- What is wrong
- Jayco, Inc. (Jayco) is recalling certain 2020-2022 Entegra Esteem, Odyssey, and Jayco Greyhawk, Redhawk, and Greyhawk Prestige motorhomes. An inadequate connection between the power steering pressure line and the brake hydroboost unit may result in a sudden loss of power steering fluid.
- Risk
- A sudden loss of power steering fluid can result in a loss of power steering and power brake assist, increasing the risk of a crash.
- Remedy
- Dealers will replace the power steering pressure line and the hydro boost jumper line, free of charge. Owner notification letters were mailed July 22, 2024. Owners may contact Jayco customer service at 1‑800‑283‑8267.
Recall number 24V245000 · Recall details
Steering: hydraulic power assist: hose, piping, and connections
- What is wrong
- Jayco, Inc. (Jayco) is recalling certain 2021-2022 Jayco Greyhawk, Greyhawk Prestige, Redhawk, Entegra Esteem, and Odyssey recreational vehicles. An inadequate connection between the power steering pressure line and the brake Hydroboost unit may result in a sudden loss of power steering fluid.
- Risk
- A sudden loss of power steering fluid can result in a loss of power steering and power brake assist, increasing the risk of a crash.
- Remedy
- Dealers will inspect the connection between the power steering lines and the Hydroboost unit, and replace the power steering lines, as necessary, free of charge. Owner notification letters were mailed June 15, 2022. Owners may contact Jayco customer service at Jayco customer service at 1‑800‑283‑8267. Jayco's number for this recall is 22V‑089.
Recall number 22V290000 · Recall details
Equipment: recreational vehicle/trailer
- What is wrong
- Jayco, Inc. (Jayco) is recalling certain 2020-2021 Greyhawk, Greyhawk Pestige, Redhawk, Redhawk SE, Odyssey, and Esteem motorhomes. The mounting brackets for the leveling system hydraulic pump and reservoir may fail, allowing the components to contact the ground.
- Risk
- Contact with the ground may cause the pump and reservoir to detach or leak hydraulic fluids, increasing the risk of a crash.
- Remedy
- Jayco will notify owners, and dealers will install a new support bracket, free of charge. The recall began February 3, 2021. Owners may contact Jayco customer service at 1‑800‑283‑8267. Jayco's number for this recall is 9903528.
Recall number 20V780000 · Recall details
Technical service bulletins for the 2021 Jayco Greyhawk 7
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Standard Repair Instruction (SRP) Radio Screen displays “No Camera Input error”. Instruction on how to...
- Standard Repair Procedure: 4K & 5.5K Generator Overheating – Fuel Hose Protection
- Jayco and entegra coach storage tips
- Instructions for resetting leveling system “zero point”
- Install water heater guard when refrigerator exhaust vent is installed above the water heater.
- Standard Repair Procedure
- 2021 Ford E-Series chassis
What 2021 Jayco Greyhawk owners say
Most recent owner complaints, unedited.
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Questions about the 2021 Jayco Greyhawk
Is the 2021 Jayco Greyhawk reliable?
Owners have filed 1 complaint about the 2021 Jayco Greyhawk, close to a typical Greyhawk model year.
What is the most common problem with the 2021 Jayco Greyhawk?
Acceleration and speed control, with 1 complaint. Next is suspension (1).
How many recalls does the 2021 Jayco Greyhawk have?
3 recalls, covering service brakes, hydraulic, steering and equipment.
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