Q: My 06 trailblazer transmission indicator jumps from drive to D to P accompained by doors locking and unlocking and loss of

asked by on

my 06 trailblazer while driving the transmission / gear indicator will jump from D to P accompained by doors locking and unlocking and loss of engine power ,what could this be?
My car has an automatic transmission.

It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 06 trailblazer transmission indicator jumps from drive to D to P accompained by doors locking and unlocking and loss of

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My truck won't shift to reverse

There are a few things that can cause this. Check the transmission fluid level to see if it is low. Sometimes low transmission fluid levels will prevent the transmission from shifting into gear. If you still have forward gears, but...

Q: Drives a few blocks and loses gas pedal pressure.

Hi CP. Thanks for contacting us today. There are a few possible reasons why you are having this problem. The most common issue that causes a restriction of fuel shortly after it starts is due to a mass air flow...

Q: Car bouncing and wobbling

Movement from side-to-side could mean many things. Loose steering components are a common cause. Inner or outer tie rod ends that are loose will make the vehicle to wobble or shake. These need to be inspected regularly. If one were...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...