THE RIGHT TURN ,LIGHT ASSEMBLY HAS A BAD GROUND. SEEN IT HAPPEN LOTS OF TIMES.
If the problem started after a new turnsignal bulb was installed then pull the bulb and look into the socket. Make sure both the socket and bulb have the same number of contacts (both two or both one ). If a single contact bulb is plugged into a two contact socket it will short both of the contacts in the socket together and backfeed a power signal from either circuit into the circuit on the other contact.
Bulb is most likely blown
A bad ground wire will cause dim headlights, or will cause lights not to work.
You would not drive it at night or when the law says you must display headlights.
It would depend on what is wrong with the headlights.
The correct grammar would be "Why would both of your headlights blow out at the same time".
If the concentration of carbon dioxide in the indicator decreased, then the indicator would turn purple.
It would depend on how dirty they are. Keeping headlights clean would be in your best interest.
The headlights go up and down when you turn the headlights on. If they are not going up or down they may be disconnected from the motor. You would have to take the headlights out to see if they are disconnected or not.
Many Camry models have so called daylight headlights.
An example of an indicator would be Phenol Red, or Universal Indicator. Depending on the pH range of the indicator and the pH range of the substrates you would use the appropriate indicator.
You need to periodically replace the headlights on your Chevy truck when the headlights start getting dim. You can purchase replacement headlights from retailers such as Parts Source.
Shift linkage may need a minor adjustment