When cruise control is in use should the indicator say set ?

The cruise control system on this vehicle uses mechanical, electrical and vacuum operated components to maintain vehicle speeds over 25 MPH. The cruise control unit receives command signals from the cruise control main switch and the set/resume switch. It also receives operating signals form the brake light switch, ignition coil, speed sensor, clutch switch (manual transmission) or shift position switch (automatic transmission). If the main switch's indicator light illuminates when turned on, it's likely working properly. Likewise, if the cruise control light on the instrument cluster illuminates when the set/resume switch is pressed, it is likely OK. At this point the problem would likely be mechanical or vacuum-related rather than electrical and the actuator/servo would be the prime suspect. On the other hand if the cluster indicator light is not illuminating, it could be an electrical issue such as the set switch not registering or one of the safety switches (brake switch, clutch switch or shift position switch) registering inappropriately which effectively cancels the cruise request. You can read more here: https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cruise-control-switch

Which engine does your trailblazer have 5.3 or 4.2 L
Cruise Control Description and Operation (5.3L)
Cruise Control Description and Operation (4.2L)
makes a difference ! The best way to start diagnostic's is with a scan tool . May have DTC'S diagnostic trouble codes .
DTC P1574 Stop Lamp Switch Circuit
DTC P0568 Cruise Control Set Switch Circuit
DTC P0567 Cruise Control Resume Switch Circuit
Plus with a scan tool you can see if the cruise control switch is inputing to PCM. Data list .
The cruise control resume/accel switch is an input to the powertrain control module (PCM). The PCM uses the cruise control resume/accel switch signal circuit in order to detect when the driver has requested to accelerate the set vehicle speed or to resume the cruise control system. The PCM detects a voltage signal on the cruise control resume/accel switch signal circuit when the switch is applied. This DTC sets if the PCM senses voltage on the cruise control resume/accel switch signal circuit for longer than 90 seconds.
Cruise Control Indicator Inoperative (4.2L)
Turn OFF the ignition.
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, Command the Cruise Control Lamp Test parameter ON, in the instrument panel cluster (IPC) Output Controls.
Does the Cruise indicator illuminate in the IPC?
YES - Go to Step 3
no - Go to Step 4
3
Inspect for poor connections at the harness connector of the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 6
4
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 5
5
Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
YES - Go to Step 7
--
6
Replace the PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 7
--
7
Operate the system in order to verify the repair.
Does the system operate properly?
System OK
Go to Step 2

Cruise Control Inoperative/Malfunctioning (4.2L)

Install a scan tool.
Turn ON the ignition, with the engine OFF.
Press the cruise ON/OFF switch OFF.
With the scan tool, observe the Cruise ON/OFF switch parameter in the powertrain control module (PCM) Cruise Control Data list.
Does the Cruise ON/OFF switch parameter display OFF?

Your best bet mite be to take your vehicle to the dealer .

Important: The hazard warning switch includes the turn signal and hazard warning flashers.
Removal Procedure
Remove the center air deflector. Refer to Instrument Panel Center Air Outlet Deflector Replacement .
Squeeze the retainer on the backside of hazard warning and cruise control switch.
Pull the hazard warning and cruise control switch from the retainer in the instrument panel.
Disconnect the electrical connectors from the hazard warning and cruise control switch.
Remove the hazard warning and cruise control switch from instrument panel.
Remove the hazard warning and cruise control switch bezel from the instrument panel trim pad by using a small flat-bladed tool to the release retainers.
Remove the radio. Refer to Radio Replacement in Entertainment.
Reach through the radio opening and push the retainers up towards the roof of the vehicle. When the retainers release, slide the instrument panel (I/P) center air outlet deflector out of the I/P opening
Remove the air outlet deflector
Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gauges, and Console.
Remove the bolts from the radio.
Pull the radio toward you.
Remove the front floor console trim plate. Refer to Front Floor Console Trim Plate Replacement .
Pull the instrument panel (IP) accessory trim plate away from the IP trim pad.
Disconnect the IP harness seat heater leads, if equipped.
Remove the seat heater switches from the IP accessory trim plate, if equipped.
Remove the IP accessory trim plate.

There is no fuse for Cruise Control , power is supplied by the BCM !
The body control module (BCM) monitors the signal circuit of the cruise control switches. The BCM relays the cruise control switch status to the engine control module (ECM) via the GMLAN serial data circuit. The ECM uses the status of the cruise control switch to determine when to capture and maintain the vehicle speed. The ECM monitors the vehicle speed signal circuit in order to determine the desired vehicle speed. The ECM uses the throttle actuator control (TAC) motor in order to maintain the vehicle speed. For further information on the TAC System, refer to Throttle Actuator Control (TAC) System Descriptionfor the 4.3L engine or Throttle Actuator Control (TAC) System Description for the 4.8L, 5.3L, 6.0L, 6.2L or 7.0L engines.
Voltage is supplied to the cruise control switch via the steering wheel control switch reference voltage circuit supplied by the BCM. The cruise control function switches are arranged in a resistive ladder design, with each cruise control function switch having a different resistance value. The BCM detects a specific voltage value that is associated with the cruise control function switch being activated. When the normally open cruise control on/off switch is turned ON, the switch closes and the BCM supplies a ground to the cruise control switch ON indicator circuit as it becomes illuminated. The BCM sends a GMLAN serial data message to the ECM indicating that the on/off switch is active. Similarly, when the normally open + RES switch or the normally open - SET switch are pressed, the switch closes and the BCM detects the predetermined voltage signal on the cruise control set/coast and resume/accel switch signal circuit. The BCM sends a GMLAN serial data message to the ECM indicating that the + RES switch or the - SET switch is active. To engage the Cruise Control System, ensure that the vehicle speed is above 40.2 km/h (25 mph), turn the cruise On/Off switch ON and momentarily press the - SET switch. The ECM will engage the Cruise Control System and record the vehicle speed. The ECM sends a GMLAN serial data message to the driver information center (DIC) in order to illuminate the CRUISE SET TO ### message. The ECM sends a GMLAN serial data message to the instrument panel cluster (IPC) in order to illuminate the Cruise Engaged indicator in the IPC.
If you don't know this I suggest you take your vehicle to the dealer or a ASE certified repair shop .

Check your repair manual where the vacuum hoses for the cruise controls are (engine bay). Maybe one of the hoses came off or has a leak.

When you are talking about "indicators" we could assuming that your are refer about signal lights. This work with "flashers" devices.

For 1996 Audi A4 2.8L SFI 6cyl the Flasher is located in front seating area, driver side, under dash, behind dash lower panel, mounted above driver side of steering column.

About generic fuses, open the driver side door. Remove panel on left side of dash. Fuse box is behind panel:

Fuse # / Description / Amps
1 / Heated washer jets / 5
2 / Turn signals flasher unit / 10
3 / Headlight washer, illumination of glove compartment, engine compartment, climate control, automatic transmission, instrument cluster / 5
4 / License plate light / 5
5 / Instrument cluster, seat heating, test connection for cruise control, bulb monitor for auto-check control, Automatic transmission display, switch lighting, mirror switches and actuators, airbag warning light, outside temperature indicator, Climate control / 10
6 / Central locking system / 5
7 / Anti-lock brake system / 10
8 / Vacant
9 / Mirror heating / 10
10 / Vacant
11 / Cruise control (automatic transmission) / 5
12 / On board diagnostic system / 10
13 / Brake lights / 10
14 / Interior lights, reading lights, anti-theft alarm system, vanity mirror / 10
15 / Instrument cluster, power windows, climate control, automatic transmission / 10
16 / Anti-lock brake system, Anti-Slip-Regulation / 5
17 / Heated door locks / 10
18 / High beam right / 10
19 / High beam left / 10
20 / Low beam right / 15
21 / Low beam left / 15
22 / Tail and side marker right / 5
23 / Tail and side marker left / 5
24 / Wiper and washer system / 25
25 / Blower for heating, climate control / 30
26 / Rear window defogger, mirror heating / 30
27 / Rear window wiper / 15
28 / Fuel pump / 15
29 / Engine timing / 20
30 / Sun roof / 20
31 / Tail lights, cruise control, automatic transmission / 15
32 / Engine timing / 20
33 / Cigarette lighter / 15
34 / Engine timing / 15
35 / Trailer receptacle / 30
36 / Fog lights / 15
37 / Radio / 20
38 / Luggage compartment light, central locking system / 15
39 / Emergency flasher / 15
40 / Horn / 25
41 / Anti-lock brake system / 25
42 / Vacant
43 / Vacant
44 / Seat heating / 30

Hope this helps (remember to rate and comme this free answeer).

on my mx6 i noticed a crimped air line that attaches to the front of the air filter box.i installed new piece of air line (apprx.2 feet) and my cruise works great

The cruise control indicator is an intregal part of the Instrument Panel Cluster module (IPC). The IPC gets a data signal from the Powertrain Control Module (PCM) commanding it to turn the indicator on or off depending on the switch input at the steering wheel. The indicator doesn't even show on the wiring diagrams for the cruise control. You have to go to the Instrument Cluster diagrams to even find the thing. Pushing the switch on the steering wheel momentarily grounds the circuit to pin 41 Connector C2 at the PCM. It actually has nothing to do with illuminating the indicator. (at least, not directly) If the cruise control is otherwise operatng properly, then it would be safe to assume that the control buttons and the PCM are not the cause. It would almost HAVE to be a malfunction in the IPC itself.

one hour job. find bulb part number in bulb chart in owner manual.

go here for villager help.

http://groups.yahoo.com/group/villagerquest/

Section 13-01B: Instrument Cluster — Conventional 1996 Villager Workshop Manual
REMOVAL AND INSTALLATION Instrument Panel Finish Panel Removal

1. Disconnect the battery ground cable (14301).
   

1. Block the wheels (1007) to prevent the vehicle from moving.
   

1. Turn the ignition switch (11572) to the OFF position.
   

1. Shift the transmission range (TR) selector to MANUAL LOW (1).
   

1. Tilt the steering wheel (3600) to the lowest position, if equipped with a tilt wheel.
   

1. Remove the two instrument panel finish panel screws.
   

1. Remove the instrument panel finish panel (044D70) enough to access the switch electrical connectors.
   

1. Disconnect the rear windshield wiper/washer switch electrical connector.
   

1. Disconnect the heated back window and light switch electrical connector.
   

1. Disconnect the emergency warning switch electrical connector.
   

1. Disconnect the SECURITY indicator light electrical connector.
   

1. Disconnect the speed control on/off (CRUISE CONT. ON/OFF) switch electrical connector.
   

1. Disconnect the headlamp switch electrical connector.
   

1. Disconnect the autolamp/light switch rheostat resistor electrical connector.
   

1. Remove the instrument panel finish panel with the switches attached.
   

-------------------------------------------------------------------------------------------------
Instrument Cluster
Removal

1. Disconnect the battery ground cable (14301).
   

1. Block the wheels (1007) to prevent the vehicle from moving.
   

1. Turn the ignition switch (11572) to the OFF position.
   

1. Shift the transmission range (TR) selector to MANUAL LOW (1).
   

1. Tilt the steering wheel (3600) to the lowest position, if equipped with a tilt wheel.
   

1. Remove the two instrument panel finish panel screws.
   

1. Remove the instrument panel finish panel (044D70) enough to access the switch electrical connectors.
   

1. Disconnect the rear windshield wiper/washer switch electrical connector.
   

1. Disconnect the heated back window and light switch electrical connector.
   

1. Disconnect the emergency warning switch electrical connector.
   

1. Disconnect the SECURITY indicator light electrical connector.
   

1. Disconnect the speed control on/off (CRUISE CONT. ON/OFF) switch electrical connector.
   

1. Disconnect the headlamp switch electrical connector.
   

1. Disconnect the autolamp/light switch rheostat resistor electrical connector.
   

1. Remove the instrument panel finish panel with the switches attached.
   

1. Remove the four instrument cluster screws.
   
2. Remove the transmission range indicator (7A110) from the instrument cluster (10849).
   

In response to the request from "emissionwiz" for more clarification of the problem:
This same 1995 Honda Accord was stolen in Atlanta, GA in 2006 and trashed. It was recovered the next day and held 4 days before I got postcard in mail to come pick it up. The battery was dead and the gas tank empty and lots of damage. The insurance made it right including putting a new battery. Two years later, a month before the replacement battery warranty ran out, the battery went dead. The dealer, Nalley Honda replaced the dead battery to satisfy the battery warranty free of charge. Never having had Cruise Control problems before, the Cruise Control failed within minutes after leaving the dealer, Nalley Honda. The Cruise Control only works to maintain speed approximately 20% of the time after the battery swap. What could have been damaged and caused the Cruise Control to fail intermittently ? I can not just ignore this problem because I need the Cruise Control. The digital multimeter I use might be of some help locating the trouble. Maybe you could point me in the right direction so I can hem this in. I read specifications if a wiring diagram is available. As stated before, all indications from the instrument panel tell me the Cruise Control is ON.