There were many changes for Hummer in 1994. The drivetrain changes were probably the most significant. While the '92 and '93 models had a 6.2L engine and 3 speed transmission, the '94 version came standard with a 6.5L engine with an additional 20 hp and 40 lb ft of torque and a 4 speed transmission. The 4 speed transmission allowed the Hummer to cruise at much lower RPM reducing the noise level at highway speed considerably. Top speed went from about 73 mph to 83 mph. Also new for '94 was the availability of luxury features such as power windows, power door locks, power mirrors and cruise control. Approximately 718 H1s were produced for the '94 model year.
Combination 1-piece runflat/beadlock easier to work with and balance.
Added catalyst and repositioned muffler to behind rear bumper.
New HVAC system uses R134 refrigerant.
Wagon cargo area bulkhead now removeable.
Power door locks standard.
Optional power mirrors, cruise control, and power windows with remote keyless entry.
Beginning with VIN RE154101 audio change from JVC to Clarion.
Windshield wiper change. Running change, lift for easier windshield cleaning.
New electric speedometer.
GSA "Highway Touring Tire" option.
New fuel tank design.
Moved P/S reservoir.
Moved rear transmission mount.
New prop shafts.
New tinted glass.
New glove box with cup holders.
New model XLC2 2-Passenger Enlarged Cab introduced 7/13/94.
Full Door option available for Open Top introduced mid year. The Full door featured glass windows in place of the standard plastic zippered windows. 30 Open Tops were ordered with the $800 Full Door Option in 1994. For '95, the Full Door Open Top became separate model HMCO.
White and Black Tops available for first time on Open Top Models. 11 Black, 96 Tan and 5 White topped Open Tops were built in 1994.
Tonneau cover on 4-Passenger Hard Top models.
Beginning with VIN RE152724 The Remote keyless entry will activate the inside dome light when unlocked.
Beginning with VIN RE152517 a mechanical tilt feature is added to the driver's seat with the deluxe cloth interior option.
Beginning with VIN RE152517 a front passenger left arm rest has been added with the deluxe cloth interior option.
Beginning with VIN RE154189 Driver and Front Passenger grab handles are standard on all Open Tops.
Beginning with VIN RE152528 the Central Tire Inflation System also included an auxiliary inflation kit, including hose.
Beginning with VIN RE155076 The dome light and the map lights were separated. The map lights were relocated outboard the driver and passenger.
As of 7/13/94 Cruise control became an available option.
Valuable upgrades and mechanical issues to look for in a '94.
'97.5 Style HVAC system. About a $4,500 to $5,000 upgrade. Much improved Heating and cooling and new unit is more easily repaired than earlier sealed units. Make sure heater core is not leaking on non-upgraded HVACs. Expensive upgrade to '97.5 specs is factory recommended solution to this problem.
Later ball joints and the factory "Problem Solver" Idler and Pitman arms are much more durable than those on a '94.
Some owners have added the '97 style scupper valves and air intake scoops to aid in ventilation and to improve air flow and defrosting. Windshield frosting is a common problem before heated windshields and enhanced ventilation became available in '97. You may also find some earlier Hummers that have had the heated windshields added which is a costly upgrade.
Updated heat shields. Limits common cracking and rattling. If a '94 is not rattling it has probably been updated.
Half shaft bolts had a tendency to back out occasionally to the point they would interfere with and damage the brake rotor. The addition of "Nord Lock" washers keeps the bolts from backing out.
Small rubber plug in Transfercase sometimes shrank due to heat and fell out, slowly draining Transfercase. Later designs solved this problem. Some owners tapped the hole and replaced the rubber plug with a metal one.
Shifter boot would become hot and tear allowing hot air from under the vehicle to enter the cabin. The '97 style shifter boot cover helps this problem.
'94 Specifications, options & Prices:
'92-'96 Paint Codes:
HMC4 Most Popular Model in 1992-1994 (270). 1994 is the last year HMC4 is most Popular. VIN 6th & 7th Digits "83"
91 Red Built in 1994.
W8 Gloss White Most Popular Color in '94 (195)
HMC4. 4-Passenger Hard Top
114 VLCOs built in 1994
VIN 6th & 7th Digits "85"
78 Black Built in 1994.
188 Gloss Green Built in 1994.
VLCO. 4-Passenger Half Door Open Top.
Only 30 VLCOs were built with Hard Door Option. Only 5 with White Tops.
66 Gloss Blue Built in 1994.
'94 4-Passenger Open Top shown with mid-year full door option. Full door option became separate model HMCO in '95.
66 Tan Built in 1994.
26 Plum Built in 1994.
268 HMCSs Built in 1994.
VIN 6th & 7th Digits "84"
Military Green was discontinued very early in '94. Only 7 were built.
HMCS. 4-Passenger Wagon
40 XLC2s Built in 1994.
VIN 6th & 7th Digits "89"
'94 Deluxe Tan Cloth interior.
XLC2. 2-Passenger Hard Top Enlarged Cab (Late-year availability).
'94 Deluxe Tan Vinyl interior.
26 VLC2s Built in 1994.
VIN 6th & 7th Digits "82"
'94 Standard Tan Cloth interior.
VLC2. 2-Passenger Hard Top..
TOTAL PRODUCTION COUNT BY MODEL AND COLOR. "X" Colors are "Experimental" or special order.