Question about 2007 GMC Envoy Denali

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2007 gmc envoy

When you apply brake then vehicle will not accelerate acts has if its in neutral. have to shift to park then shift to drive. could it be the stabilitrak having problems

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You might have an electric problem since the brake switch comunicates with the transmission module

Posted on May 28, 2008

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1 Answer

What will cause my 2008 gmc envoy not to move when I put it in reverse neutral or drive


  • Neutral safety switch sends a signal to the on-board computer to allow the engine to start and to engage the transmission
  • When not replaced, vehicle may experience no start and/or transmission will not shift out of park.Here's a link to the part,
Duralast Neutral Safety Switch DR4146 Read Reviews on Duralast DR4146

Mar 22, 2016 | GMC Cars & Trucks

1 Answer

My 1997 GMC Sonoma SLS is stuck in park. I believe it is due to a failed stop light switch. Where is that switch located and how do I replace it. How do I by-pass that switch to get the truck out of...


The brake lamp switch is located on the brake pedal assembly under the dash. (See Diagram)

To move the vehicle, try this:

1. Turn the key to OFF.
2. Apply and hold the brake until the end of Step 4.
3. Shift the transmission to NEUTRAL (N).
4. Start the vehicle and then shift to the drive gear
you want



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Sep 04, 2011 | 1997 GMC Sonoma

1 Answer

96 F250 can't shift out of park


NOTE: Your vehicle is equipped with a

brake-shift interlock feature. This

feature prevents you from shifting

from P (Park) unless you have the

brake pedal depressed. (The ignition

must be in the ON position.) If you

cannot shift from P (Park) with the

brake pedal depressed:


1. Apply the parking brake.

2. Remove the key.

3. Insert the key and rotate one position
clockwise (ignition in the OFF position).

4. Apply the brake pedal and shift to N

(Neutral). (If the vehicle is shifted to P

(Park), you must repeat the previous steps.)

5. Start the vehicle.


If you need to shift out of P (Park) by using the

alternate procedure described above, it is

possible that a fuse has blown and that your

brakelamps may also not be functional.


WARNING

DO NOT DRIVE YOUR VEHICLE UNTIL

YOU VERIFY THAT THE BRAKELAMPS
ARE WORKING.

check fuse 13 based on the attached diagram.

If this fuse is bad replace it. If it is not bad, blows again, or continues to be stuck in park then you need a new brake interlock switch that can be found on the brake pedal up underneath the dash.mustang_guru_2.jpg

Jan 12, 2011 | Ford F-250 Cars & Trucks

1 Answer

My 2005 envoy xuv wont start somethings unless I mess with the break and gear shift. it acts like it don't reconzie it is in park.


If it's a no crank condition, put your foot on the brake, shirt the gear selector to neutral and see if the engine will start. If it starts in neutral, you might have a faulty neutral safety switch which is located on the transmission. Very easy to change, but don't remove the steel alignment tool until you have it bolted to the transmission, Good luck, Gary

Jul 27, 2010 | GMC Envoy XL Cars & Trucks

2 Answers

Can a 1998 4x4 S-10 blazer be dinghy towed?


Yes it can, just place your Transfer Case in Neutral position.
Shifting into NEUTRAL
To shift the transfer case to NEUTRAL do the following:

Make sure the vehicle is parked so that it will not roll.
Set the parking brake.
Start the vehicle or turn the ignition to RUN.
Connect the vehicle to the towing vehicle.
Put the transmission in NEUTRAL (N).
Shift the transfer case to 2HI.
Simultaneously press and hold the 2HI and 4LO buttons for 10 seconds. The red NEUTRAL light will come on when the transfer case shift to NEUTRAL is complete.
Shift the transmission to REVERSE (R) for one second, then shift the transmission to DRIVE (D) for one second, or FIRST (1) for vehicles equipped with a manual transmission.
Turn the ignition to LOCK.
Place the transmission shift lever in PARK (P), or FIRST (1) for vehicles with a manual transmission.
Release the parking brake prior to towing.

Shifting Out of NEUTRAL
To shift out of NEUTRAL:

Set the parking brake and apply the regular brake pedal.
Shift the transmission to NEUTRAL (N) and turn the ignition to RUN with the engine off.
Press the button for the desired transfer case shift position (2HI, 4HI, AUTO 4WD or 4LO).
After the transfer case has shifted out of NEUTRAL the red light will go out.
Release the parking brake.
You may start the engine and shift the transmission to the desired position.
Excessively shifting the transfer case into or out of the different modes may cause the transfer case to enter the shift protection mode. This will protect the transfer case from possible damage and will only allow the transfer case to respond to one shift per 10 seconds. The transfer case may stay in this mode for up to three minutes.

NEUTRAL: Shift the vehicle's transfer case to NEUTRAL only when towing your vehicle.
Good luck and hope this answers your question.

Jan 30, 2010 | 1998 Chevrolet Blazer

3 Answers

I CAN NOT SHIFT THR TRANS INTO NUTRAL SO I CAN TOW IT BEHIND MY MOTOR HOME. IT WILL SHIFT INTO 2H, 4H, 4L


Shifting to NEUTRAL
To shift the transfer case to NEUTRAL, first make sure
the vehicle is parked so that it will not roll:
1. Set the parking brake.
2. Start the vehicle.
3. Connect the vehicle to the towing vehicle.
4. Put the transmission in NEUTRAL (N) or have
the clutch pedal pressed for vehicles with
manual transmission.
5. Shift the transfer case to 2HI.
6. Simultaneously press and hold the 2HI and
4LO buttons for 10 seconds. The red NEUTRAL
light will come on when the transfer case shift to
NEUTRAL is complete.
7. Shift the transmission to REVERSE (R) for one
second, then shift the transmission to DRIVE (D)
for one second or FIRST (1) for vehicles with
manual transmission.
8. Turn the ignition to OFF.
9. Place the transmission shift lever in PARK (P) or
FIRST (1) for vehicles with manual transmission.
10. Release the parking brake prior to towing.

************************

Shifting Out of NEUTRAL
To shift out of NEUTRAL:
1. Set the parking brake and apply the regular
brake pedal.
2. Start the vehicle with the transmission in PARK (P)
or FIRST (1) for vehicles with manual transmission.
3. Press the button for the desired transfer case position
(2HI, 4HI, AUTO 4WD or 4LO).
4. Put the transmission in NEUTRAL (N) or press the
clutch pedal for vehicles with manual transmission.
5. Shift the transmission lever to the desired position.
After the transfer case has shifted out of NEUTRAL,
the red light will go out.
6. A re-engagement sound is normal when shifting out
of NEUTRAL.

Jan 22, 2010 | 2000 GMC Jimmy

1 Answer

02 envoy will not shift out of paek, transmission is in neutral


If the gearshift indicator says it is in neutral and the vehicle rolls like it is in neutral, and it starts like it is in neutral...it is probably stuck in neutral, not park. Block the wheels and set the parking brake so the vehicle cannot roll over you then crawl under the driver's side and check the shift cable where it attaches to the lever on the side of the transmission. I have seen a few of these come loose due to wear in the shift cable end. You can usually snap it back on there and it will work again for a while, but it will come back off again. You can get a new cable from the dealer. If they have to order it for you, the cable might stay on for a few days while you are waiting for your new cable to arrive.

Nov 21, 2009 | 2002 GMC Envoy

3 Answers

Wont shift back from 4x4 low, to 2x2


I also have a 2002 Envoy. Shifting to and from 4wh and 4wa can be done on the fly but shifting to 4wL has to be done stoped and while in neutral. Try that. Otherwise I'm afraid its a new computer for you. Its located under the left rear seat and you need a loan for one.

Sep 05, 2009 | 2002 GMC Envoy

2 Answers

How do i reprogram the computer on my 2002 xl7


Try this relearn procedure hopefully it will help

Vehicles equipped with engine or transmission computers may require a relearn procedure after the vehicle battery is disconnected. Many vehicle computers memorize and store vehicle operation patterns for optimum driveability and performance. When the vehicle battery is disconnected, this memory is lost. The computer will use default data until new data from each key start is stored. As the computer memorizes vehicle operation for each new key start, driveability is restored. Vehicle computers may memorize vehicles operation patterns for 40 or more key starts. Customers often complain of driveability problems during the relearn stage because the vehicle acts differently then before being serviced. Depending on the type of vehicle and how it is equipped, the following complaints (driveability problems) may exist:

Harsh Or Poor Shift Quality
Rough Or Unstable Idle
Hesitation Or Stumble
Rich Or Lean Running
Poor Fuel Mileage

These symptoms and complaints should disappear after a number of drive cycles have been memorized. To reduce the possibility of complaints, after any service which requires battery power to be disconnected, vehicle should be road tested.

Vehicle Preparation

Ensure all components are connected. Ensure transmission fluid level is correct. Warm engine to normal operating temperature. If vehicle has been repaired, perform KOEO and Continuous Memory Code Self-Test and ensure fault codes are not present.

Computer Relearn Procedures

Idle Relearn Procedure

Place automatic transmission in Park or manual transmission in Neutral position. Ensure the emergency brake has been set and all accessories are turned off. Start engine and bring to normal operating temperature. Allow manual transmission vehicle to idle in Neutral for one minute. Allow automatic transmission to idle in Neutral for one minute and then to idle in Drive for one minute. Once initial relearn is complete, process will be completed during normal driving. Always complete the procedure before returning the vehicle to the customer.

Drive Cycle Test (AOD-E, AXOD & AXOD-E TRANSAXLES)

With transmission gear selector in Overdrive, moderately accelerate vehicle to 50 MPH for a minimum of 15 seconds. Transmission should be in 4th gear. While holding speed steady, lightly apply and release brake for about 5 seconds. Stop and park vehicle for a minimum of 20 seconds with transmission gear selector in Drive. Repeat procedure 5 times. Always complete the procedure before returning the vehicle to the customer.

Drive Cycle Test (E4OD)

With transmission gear selector in Drive, press Overdrive Cancel Switch (LED should light). Moderately accelerate vehicle to 40 MPH for a minimum of 15 seconds (30 seconds above 4000-ft. elevation) Transmission should be in 3rd gear. While holding speed steady, press Overdrive Cancel Switch (LED should go off) and accelerate from 40 MPH to 50 MPH. Transmission should shift from 3rd gear to 4th gear. Hold speed steady for 15 seconds. While holding speed steady, lightly apply and release brakes enough to turn brake lights on. Maintain 50 MPH for about 5 seconds. Stop vehicle for a minimum of 20 seconds with transmission gear selector in Drive. Repeat procedure 5 times. Always complete the procedure before returning the vehicle to the customer.

Mar 26, 2009 | 1998 Lincoln Mark VIII

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