Skip the auto shop - Our mechanics make house calls

Q: Electrical system problems on 2007 Buick Rainier

asked by on

I've been having some electrical problems with the car in the last 20 days. There is a warning "Service tire pressure monitoring system" that came up on the Driver's Information Display. In addition to that, the keyless entry has been malfunctioning. Even though I had the batteries replaced in key fobs, these would occasionally stop functioning and wouldn't unlock or lock the doors. Also the rear liftgate could sometimes be locked or unlocked. When it actually starts working, it would keep locking and unlocking. The driver's door switch sometimes quit working as well. I was wondering what the system is, which controls all these electrical features of the car. Are these connected? How can I fix this?

A: This was a common issue in many GM vehicles...

This was a common issue in many GM vehicles that is typically caused by a short in the system that controls these features. Tracing the short can be very time consuming and difficult to track down. If you would like to have this done for you, a certified technician from YourMechanic can come to your home or office to diagnose and repair these electrical issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car squeaks when going over bumps.

I would start by having your suspension system inspected by a YourMechanic technician. It is possible that one of your ball joints or tie rods had dried up. The technician will use an automotive stethoscope to find the source of...

Q: Various electrical problems

Each problem will need to be addressed one at a time. The easiest way to check fuses is with a test light. To check the fuses follow the following steps: Start the engine and turn everything on Ground the...

Q: No heat in car and engine light on for overheating

Hi There, Your heating issue may be due to a faulty heater blower motor or potentially a bad heater core. As you may know, the heater core is a small radiator like unit that circulates the hot coolant from the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.